# PDFVerifier Component

The PDFVerifier class verifies signatures over PDF documents.

## Syntax

```text
secureblackbox.PDFVerifier
```

## Remarks

Use PDFVerifier to validate electronic signatures over PDF documents. Generic and PAdES signatures are supported.

```text
PDFVerifier verifier = new PDFVerifier();

// Set the signed PDF document that you want to verify
verifier.setInputFile("signed.pdf");

verifier.verify();

// Verification information
for (int idx = 0; idx < verifier.getSignatures().size(); idx++) {
  System.out.println("Signature " + (idx + 1));
  System.out.println("  Timestamp:         " + verifier.getSignatures().item(idx).getValidatedSigningTime());

  System.out.print("  Validation Result: " + verifier.getSignatures().item(idx).getSignatureValidationResult() + ", ");
  switch (verifier.getSignatures().item(idx).getSignatureValidationResult()) {
    case svtValid:
      System.out.println("The signature is valid.");
      break;
    case svtUnknown:
      System.out.println("Signature validity is unknown.");
      break;
    case svtCorrupted:
      System.out.println("The signature is corrupted.");
      break;
    case svtSignerNotFound:
      System.out.println("Failed to acquire the signing certificate. The signature cannot be validated.");
      break;
    case svtFailure:
      System.out.println("General failure.");
      break;
    default:
      System.out.println("Signature validity is unknown.");
      break;
  }
}
```

PDFVerifier validates each signature from two perspectives: the integrity and validity of the signature itself (i.e. its correspondence to the document data it covers), and the validity and trustworthiness of the signing certificate chain. These two signature aspects are generally independent of each other: the signature may be valid but the chain may not be trusted, or the other way around, the chain may be trusted but the integrity of the signature may be violated. Under normal circumstances both the signature **and** the chain must be valid for the signature to be considered good.

To initiate the validation, assign the path to the signed PDF file to the [InputFile](#inputfile-property-pdfverifier-component) property (alternatively, you can provide it in a memory buffer via the [InputBytes](#inputbytes-property-pdfverifier-component) property), and call the [Verify](#verify-method-pdfverifier-component) method. For every signature located in the document, PDFVerifier will fire the [SignatureFound](#signaturefound-event-pdfverifier-component) event. This event lets you specify whether you want PDFVerifier to validate the signature, the chain, or both.

Note: it does not mean that any of the two is optional. This API lets you be flexible in how you validate documents in your code in accordance with the specifics of your application and its usage scenarios. For example, if your trust environment relies on certificate pinning, validating the chain by PDFVerifier internally may cause unnecessary burden on the system, in which case it may be reasonable to disable it in the event handler.

Once [SignatureFound](#signaturefound-event-pdfverifier-component) returns, PDFVerifier proceeds to the signature validation routine in accordance with the provided settings. Upon completion of the validation, the [SignatureValidated](#signaturevalidated-event-pdfverifier-component) event is fired, and the validation results are separately provided via the  and  fields of the associated signature object. Other information about the signature can be accessed via the Signatures property.

The PDF format uses incremental updates to introduce changes to the document. This implies that a signature may cover not the whole document, but rather a certain revision of it. Strictly speaking, every signature in a PDF document, apart from perhaps the last one, covers just some part of the document. In most cases that part matches the revision of the document that existed before all the subsequent signatures had been added.

Because of these specifics of the PDF format, it is crucially important to understand which part of the document is covered by a specific signature. Use the  field to establish the scope of a signature. The revision of the document covered by that specific signature ranges from byte 0 to CoverageEndsAt. Alternatively, you can use the [GetSignedVersion](#getsignedversion-method-pdfverifier-component) method to extract the signed revision to a file.

### Useful settings and properties

The following properties of PDFVerifier may be handy when working with this struct:

- [OfflineMode](#offlinemode-property-pdfverifier-component) lets you validate the document without contacting online revocation sources. Paired with switched-off system trust settings, it can be used to establish the long-term validity of the document and the completeness of the validation material included in it.
- [RevocationCheck](#revocationcheck-property-pdfverifier-component) lets you adjust the revocation checking preferences.
-  returns the signing time as recorded in the embedded signature timestamp. This is in contrast to , which returns the signing time as specified by the signer.
-  is a great way to find out the details of chain validation failures. This property returns a comprehensive validation log that reports all the issues encountered during the validation.
- If the document is encrypted (in addition to being signed), the [Encrypted](#encrypted-event-pdfverifier-component) event will fire, asking you for the decryption certificate or password.

By default, PDFVerifier uses the system trust settings to establish certificate chain validity. You can configure it to use your own, custom validation environment by providing the necessary trust elements via KnownCertificates, TrustedCertificates, KnownCRLs, and other similar properties.

## Property List

*The following is the full list of the properties of the component with short descriptions. Click on the links for further details.*

|  |  |
| --- | --- |
| [AllSignaturesValid](#allsignaturesvalid-property-pdfverifier-component) | The cumulative validity of all signatures. |
| [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) | The number of records in the AttachedFiles arrays. |
| [AttachedFilesContentSubtype](#attachedfilescontentsubtype-property-pdfverifier-component) | Contains the content subtype of the attachment. |
| [AttachedFilesContentType](#attachedfilescontenttype-property-pdfverifier-component) | Contains the content type of the attachment. |
| [AttachedFilesCreationDate](#attachedfilescreationdate-property-pdfverifier-component) | The creation date. |
| [AttachedFilesData](#attachedfilesdata-property-pdfverifier-component) | The content of the attachment. |
| [AttachedFilesDescription](#attachedfilesdescription-property-pdfverifier-component) | Textual description of the attachment. |
| [AttachedFilesFileName](#attachedfilesfilename-property-pdfverifier-component) | Specifies the name of the attachment file. |
| [AttachedFilesHandle](#attachedfileshandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [AttachedFilesID](#attachedfilesid-property-pdfverifier-component) | Contains the attachment's unique identifier. |
| [AttachedFilesModificationDate](#attachedfilesmodificationdate-property-pdfverifier-component) | Specifies the date and time of the file's last modification. |
| [AttachedFilesReadDate](#attachedfilesreaddate-property-pdfverifier-component) | Specifies the file's last read date. |
| [AttachedFilesSize](#attachedfilessize-property-pdfverifier-component) | The attachment's size in bytes. |
| [AutoValidateSignatures](#autovalidatesignatures-property-pdfverifier-component) | Specifies whether PDFVerifier should validate any present signatures when the document is opened. |
| [BlockedCertCount](#blockedcertcount-property-pdfverifier-component) | The number of records in the BlockedCert arrays. |
| [BlockedCertBytes](#blockedcertbytes-property-pdfverifier-component) | Returns the raw certificate data in DER format. |
| [BlockedCertHandle](#blockedcerthandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [CertCount](#certcount-property-pdfverifier-component) | The number of records in the Cert arrays. |
| [CertBytes](#certbytes-property-pdfverifier-component) | Returns the raw certificate data in DER format. |
| [CertCA](#certca-property-pdfverifier-component) | Indicates whether the certificate has a CA capability. |
| [CertCAKeyID](#certcakeyid-property-pdfverifier-component) | A unique identifier (fingerprint) of the CA certificate's cryptographic key. |
| [CertType](#certtype-property-pdfverifier-component) | Returns the type of the entity contained in the Certificate object. |
| [CertCRLDistributionPoints](#certcrldistributionpoints-property-pdfverifier-component) | Contains a list of locations of CRL distribution points used to check this certificate's validity. |
| [CertCurve](#certcurve-property-pdfverifier-component) | Specifies the elliptic curve associated with the certificate's public key. |
| [CertFingerprint](#certfingerprint-property-pdfverifier-component) | Contains the fingerprint (a hash imprint) of this certificate. |
| [CertFriendlyName](#certfriendlyname-property-pdfverifier-component) | Contains an associated alias (friendly name) of the certificate. |
| [CertHandle](#certhandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [CertHashAlgorithm](#certhashalgorithm-property-pdfverifier-component) | Provides means to set the hash algorithm to be used in the subsequent operation on the certificate (such as generation or key signing). |
| [CertIssuer](#certissuer-property-pdfverifier-component) | The common name of the certificate issuer (CA), typically a company name. |
| [CertIssuerRDN](#certissuerrdn-property-pdfverifier-component) | A list of Property=Value pairs that uniquely identify the certificate issuer. |
| [CertKeyAlgorithm](#certkeyalgorithm-property-pdfverifier-component) | Specifies the public key algorithm of this certificate. |
| [CertKeyBits](#certkeybits-property-pdfverifier-component) | Returns the length of the public key in bits. |
| [CertKeyFingerprint](#certkeyfingerprint-property-pdfverifier-component) | Returns a SHA1 fingerprint of the public key contained in the certificate. |
| [CertKeyUsage](#certkeyusage-property-pdfverifier-component) | Indicates the purposes of the key contained in the certificate, in the form of an OR'ed flag set. |
| [CertKeyValid](#certkeyvalid-property-pdfverifier-component) | Returns True if the certificate's key is cryptographically valid, and False otherwise. |
| [CertOCSPLocations](#certocsplocations-property-pdfverifier-component) | Locations of OCSP services that can be used to check this certificate's validity in real time, as recorded by the CA. |
| [CertOCSPNoCheck](#certocspnocheck-property-pdfverifier-component) | Accessor to the value of the certificate's ocsp-no-check extension. |
| [CertOrigin](#certorigin-property-pdfverifier-component) | Returns the location that the certificate was taken or loaded from. |
| [CertPolicyIDs](#certpolicyids-property-pdfverifier-component) | Contains identifiers (OIDs) of the applicable certificate policies. |
| [CertPrivateKeyBytes](#certprivatekeybytes-property-pdfverifier-component) | Returns the certificate's private key in DER-encoded format. |
| [CertPrivateKeyExists](#certprivatekeyexists-property-pdfverifier-component) | Indicates whether the certificate has a usable private key associated with it. |
| [CertPrivateKeyExtractable](#certprivatekeyextractable-property-pdfverifier-component) | Indicates whether the private key is extractable (exportable). |
| [CertPublicKeyBytes](#certpublickeybytes-property-pdfverifier-component) | Contains the certificate's public key in DER format. |
| [CertQualified](#certqualified-property-pdfverifier-component) | Indicates whether the certificate is qualified. |
| [CertQualifiedStatements](#certqualifiedstatements-property-pdfverifier-component) | Returns a simplified qualified status of the certificate. |
| [CertQualifiers](#certqualifiers-property-pdfverifier-component) | A list of qualifiers. |
| [CertSelfSigned](#certselfsigned-property-pdfverifier-component) | Indicates whether the certificate is self-signed (root) or signed by an external CA. |
| [CertSerialNumber](#certserialnumber-property-pdfverifier-component) | Returns the certificate's serial number. |
| [CertSigAlgorithm](#certsigalgorithm-property-pdfverifier-component) | Indicates the algorithm that was used by the CA to sign this certificate. |
| [CertSource](#certsource-property-pdfverifier-component) | Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response. |
| [CertSubject](#certsubject-property-pdfverifier-component) | The common name of the certificate holder, typically an individual's name, a URL, an e-mail address, or a company name. |
| [CertSubjectAlternativeName](#certsubjectalternativename-property-pdfverifier-component) | Returns or sets the value of the Subject Alternative Name extension of the certificate. |
| [CertSubjectKeyID](#certsubjectkeyid-property-pdfverifier-component) | Contains a unique identifier of the certificate's cryptographic key. |
| [CertSubjectRDN](#certsubjectrdn-property-pdfverifier-component) | A list of Property=Value pairs that uniquely identify the certificate holder (subject). |
| [CertValid](#certvalid-property-pdfverifier-component) | Indicates whether or not the signature over the certificate or the request is valid and matches the public key contained in the CA certificate/request. |
| [CertValidFrom](#certvalidfrom-property-pdfverifier-component) | The time point at which the certificate becomes valid, in UTC. |
| [CertValidTo](#certvalidto-property-pdfverifier-component) | The time point at which the certificate expires, in UTC. |
| [CheckTrustedLists](#checktrustedlists-property-pdfverifier-component) | Specifies whether the class should attempt to validate chain trust via a known Trusted List. |
| [CRLCount](#crlcount-property-pdfverifier-component) | The number of records in the CRL arrays. |
| [CRLBytes](#crlbytes-property-pdfverifier-component) | Returns the raw CRL data in DER format. |
| [CRLCAKeyID](#crlcakeyid-property-pdfverifier-component) | A unique identifier (fingerprint) of the CA certificate's private key, if present in the CRL. |
| [CRLEntryCount](#crlentrycount-property-pdfverifier-component) | Returns the number of certificate status entries in the CRL. |
| [CRLHandle](#crlhandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [CRLIssuer](#crlissuer-property-pdfverifier-component) | The common name of the CRL issuer (CA), typically a company name. |
| [CRLIssuerRDN](#crlissuerrdn-property-pdfverifier-component) | A collection of information, in the form of [OID, Value] pairs, uniquely identifying the CRL issuer. |
| [CRLLocation](#crllocation-property-pdfverifier-component) | The URL that the CRL was downloaded from. |
| [CRLNextUpdate](#crlnextupdate-property-pdfverifier-component) | The planned time and date of the next version of this CRL to be published. |
| [CRLSigAlgorithm](#crlsigalgorithm-property-pdfverifier-component) | The public key algorithm that was used by the CA to sign this CRL. |
| [CRLSource](#crlsource-property-pdfverifier-component) | Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response. |
| [CRLTBS](#crltbs-property-pdfverifier-component) | The to-be-signed part of the CRL (the CRL without the signature part). |
| [CRLThisUpdate](#crlthisupdate-property-pdfverifier-component) | The date and time at which this version of the CRL was published. |
| [DecryptionCertificateBytes](#decryptioncertificatebytes-property-pdfverifier-component) | Returns the raw certificate data in DER format. |
| [DecryptionCertificateHandle](#decryptioncertificatehandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [DocumentInfoEncryptionAlgorithm](#documentinfoencryptionalgorithm-property-pdfverifier-component) | The symmetric algorithm used to encrypt the document. |
| [DocumentInfoEncryptionType](#documentinfoencryptiontype-property-pdfverifier-component) | The document encryption type. |
| [DocumentInfoMetadataEncrypted](#documentinfometadataencrypted-property-pdfverifier-component) | Indicates if the document metadata is encrypted. |
| [DocumentInfoPermissions](#documentinfopermissions-property-pdfverifier-component) | Contains the document permissions associated with the encryption. |
| [FIPSMode](#fipsmode-property-pdfverifier-component) | Reserved. |
| [IgnoreChainValidationErrors](#ignorechainvalidationerrors-property-pdfverifier-component) | Makes the class tolerant to chain validation errors. |
| [InputBytes](#inputbytes-property-pdfverifier-component) | Use this property to pass the input to class in byte array form. |
| [InputFile](#inputfile-property-pdfverifier-component) | A path to the signed PDF file. |
| [KnownCertCount](#knowncertcount-property-pdfverifier-component) | The number of records in the KnownCert arrays. |
| [KnownCertBytes](#knowncertbytes-property-pdfverifier-component) | Returns the raw certificate data in DER format. |
| [KnownCertHandle](#knowncerthandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [KnownCRLCount](#knowncrlcount-property-pdfverifier-component) | The number of records in the KnownCRL arrays. |
| [KnownCRLBytes](#knowncrlbytes-property-pdfverifier-component) | Returns the raw CRL data in DER format. |
| [KnownCRLHandle](#knowncrlhandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [KnownOCSPCount](#knownocspcount-property-pdfverifier-component) | The number of records in the KnownOCSP arrays. |
| [KnownOCSPBytes](#knownocspbytes-property-pdfverifier-component) | A buffer containing the raw OCSP response data. |
| [KnownOCSPHandle](#knownocsphandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [OCSPCount](#ocspcount-property-pdfverifier-component) | The number of records in the OCSP arrays. |
| [OCSPBytes](#ocspbytes-property-pdfverifier-component) | A buffer containing the raw OCSP response data. |
| [OCSPEntryCount](#ocspentrycount-property-pdfverifier-component) | The number of SingleResponse elements contained in this OCSP response. |
| [OCSPHandle](#ocsphandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [OCSPIssuer](#ocspissuer-property-pdfverifier-component) | Indicates the issuer of this response (a CA or its authorized representative). |
| [OCSPIssuerRDN](#ocspissuerrdn-property-pdfverifier-component) | Indicates the RDN of the issuer of this response (a CA or its authorized representative). |
| [OCSPLocation](#ocsplocation-property-pdfverifier-component) | The location of the OCSP responder. |
| [OCSPProducedAt](#ocspproducedat-property-pdfverifier-component) | Specifies the time when the response was produced, in UTC. |
| [OCSPSigAlgorithm](#ocspsigalgorithm-property-pdfverifier-component) | The public key algorithm that was used by the CA to sign this OCSP response. |
| [OCSPSource](#ocspsource-property-pdfverifier-component) | Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response. |
| [OfflineMode](#offlinemode-property-pdfverifier-component) | Switches the class to offline mode. |
| [OutputBytes](#outputbytes-property-pdfverifier-component) | Use this property to read the output the class object has produced. |
| [OutputFile](#outputfile-property-pdfverifier-component) | The file to save the signed or updated document to. |
| [PageCount](#pagecount-property-pdfverifier-component) | The number of records in the Page arrays. |
| [PageCropLLX](#pagecropllx-property-pdfverifier-component) | Specifies the lower-left X coordinate of the page crop area. |
| [PageCropLLY](#pagecroplly-property-pdfverifier-component) | Specifies the lower-left Y coordinate of the page crop area. |
| [PageCropURX](#pagecropurx-property-pdfverifier-component) | Specifies the upper-right X coordinate of the page crop area. |
| [PageCropURY](#pagecropury-property-pdfverifier-component) | Specifies the upper-right Y coordinate of the page crop area. |
| [PageHeight](#pageheight-property-pdfverifier-component) | Specifies the height of the page. |
| [PageMediaLLX](#pagemediallx-property-pdfverifier-component) | Specifies the lower-left X coordinate of the page media area. |
| [PageMediaLLY](#pagemedially-property-pdfverifier-component) | Specifies the lower-left Y coordinate of the page media area. |
| [PageMediaURX](#pagemediaurx-property-pdfverifier-component) | Specifies the upper-right X coordinate of the page media area. |
| [PageMediaURY](#pagemediaury-property-pdfverifier-component) | Specifies the upper-right Y coordinate of the page media area. |
| [PageRotate](#pagerotate-property-pdfverifier-component) | Specifies the rotation angle of the page in degrees. |
| [PageWidth](#pagewidth-property-pdfverifier-component) | Specifies the width of the page. |
| [Password](#password-property-pdfverifier-component) | The decryption password. |
| [Profile](#profile-property-pdfverifier-component) | Specifies a pre-defined profile to apply when creating the signature. |
| [ProxyAddress](#proxyaddress-property-pdfverifier-component) | The IP address of the proxy server. |
| [ProxyAuthentication](#proxyauthentication-property-pdfverifier-component) | The authentication type used by the proxy server. |
| [ProxyPassword](#proxypassword-property-pdfverifier-component) | The password to authenticate to the proxy server. |
| [ProxyPort](#proxyport-property-pdfverifier-component) | The port on the proxy server to connect to. |
| [ProxyType](#proxytype-property-pdfverifier-component) | The type of the proxy server. |
| [ProxyRequestHeaders](#proxyrequestheaders-property-pdfverifier-component) | Contains HTTP request headers for WebTunnel and HTTP proxy. |
| [ProxyResponseBody](#proxyresponsebody-property-pdfverifier-component) | Contains the HTTP or HTTPS (WebTunnel) proxy response body. |
| [ProxyResponseHeaders](#proxyresponseheaders-property-pdfverifier-component) | Contains response headers received from an HTTP or HTTPS (WebTunnel) proxy server. |
| [ProxyUseIPv6](#proxyuseipv6-property-pdfverifier-component) | Specifies whether IPv6 should be used when connecting through the proxy. |
| [ProxyUsername](#proxyusername-property-pdfverifier-component) | Specifies the username credential for proxy authentication. |
| [RevocationCheck](#revocationcheck-property-pdfverifier-component) | Specifies the kind(s) of revocation check to perform for all chain certificates. |
| [SignatureCount](#signaturecount-property-pdfverifier-component) | The number of records in the Signature arrays. |
| [SignatureAllowedChanges](#signatureallowedchanges-property-pdfverifier-component) | The changes to the document allowed by the signature. |
| [SignatureAuthorName](#signatureauthorname-property-pdfverifier-component) | A human-readable signer name. |
| [SignatureCertification](#signaturecertification-property-pdfverifier-component) | Specifies whether this is a Certification (MDP) signature. |
| [SignatureChainValidationDetails](#signaturechainvalidationdetails-property-pdfverifier-component) | The details of a certificate chain validation outcome. |
| [SignatureChainValidationResult](#signaturechainvalidationresult-property-pdfverifier-component) | The outcome of a certificate chain validation routine. |
| [SignatureClaimedSigningTime](#signatureclaimedsigningtime-property-pdfverifier-component) | Returns or sets the signature's creation time. |
| [SignatureCompatibilityErrors](#signaturecompatibilityerrors-property-pdfverifier-component) | Returns compatibility errors encountered during validation. |
| [SignatureContactInfo](#signaturecontactinfo-property-pdfverifier-component) | Contains the signer's contact information. |
| [SignatureContainsLongTermInfo](#signaturecontainslongterminfo-property-pdfverifier-component) | Returns true if the signature was found to contain long-term validation details (certificates, CRLs, and OCSP response). |
| [SignatureCoverageEndsAt](#signaturecoverageendsat-property-pdfverifier-component) | Indicates the byte offset in the PDF file where signature coverage ends. |
| [SignatureCustomData](#signaturecustomdata-property-pdfverifier-component) | Uninterpreted custom data to save with the PDF signature. |
| [SignatureEmptyField](#signatureemptyfield-property-pdfverifier-component) | Indicates whether the signature is created as an empty property (a signature placeholder). |
| [SignatureEntityLabel](#signatureentitylabel-property-pdfverifier-component) | Use this property to get the signature entity label. |
| [SignatureFilterName](#signaturefiltername-property-pdfverifier-component) | Specifies the PDF security handler filter name to use when creating a new signature. |
| [SignatureFullSignatureName](#signaturefullsignaturename-property-pdfverifier-component) | Specifies the full name of the signature property. |
| [SignatureHandle](#signaturehandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [SignatureHashAlgorithm](#signaturehashalgorithm-property-pdfverifier-component) | Specifies the hash algorithm to be used for signing. |
| [SignatureHeight](#signatureheight-property-pdfverifier-component) | Specifies the height of the signature widget. |
| [SignatureIssuerRDN](#signatureissuerrdn-property-pdfverifier-component) | The Relative Distinguished Name of the signing certificate's issuer. |
| [SignatureLevel](#signaturelevel-property-pdfverifier-component) | Specifies the PAdES signature level. |
| [SignatureLocation](#signaturelocation-property-pdfverifier-component) | Specifies the host name or the physical location of the signing entity. |
| [SignatureOffsetX](#signatureoffsetx-property-pdfverifier-component) | Specifies the signature widget offset from the left-hand page border. |
| [SignatureOffsetY](#signatureoffsety-property-pdfverifier-component) | Specifies the signature widget offset from the bottom page border. |
| [SignaturePage](#signaturepage-property-pdfverifier-component) | Indicates the index of the page on which the signature is placed. |
| [SignaturePolicyHash](#signaturepolicyhash-property-pdfverifier-component) | The signature policy hash value for EPES signatures. |
| [SignaturePolicyHashAlgorithm](#signaturepolicyhashalgorithm-property-pdfverifier-component) | The algorithm that was used to calculate the signature policy hash. |
| [SignaturePolicyID](#signaturepolicyid-property-pdfverifier-component) | The policy ID to be included in the signature. |
| [SignaturePolicyURI](#signaturepolicyuri-property-pdfverifier-component) | The signature policy URI that was included in the signature. |
| [SignatureReason](#signaturereason-property-pdfverifier-component) | Specifies the reason for signing. |
| [SignatureSerialNumber](#signatureserialnumber-property-pdfverifier-component) | The serial number of the signing certificate that created the signature. |
| [SignatureBytes](#signaturebytes-property-pdfverifier-component) | Returns the binary representation of the underlying CMS/PKCS#7 signature container, or the timestamp token for document timestamp signatures. |
| [SignatureName](#signaturename-property-pdfverifier-component) | Specifies the unique signature identifier to use. |
| [SignatureType](#signaturetype-property-pdfverifier-component) | The type of the PDF signature: Legacy, PAdES, document timestamp, or unknown. |
| [SignatureValidationResult](#signaturevalidationresult-property-pdfverifier-component) | The outcome of the cryptographic signature validation. |
| [SignatureSubjectKeyID](#signaturesubjectkeyid-property-pdfverifier-component) | Contains the subject key identifier of the signing certificate. |
| [SignatureSubjectRDN](#signaturesubjectrdn-property-pdfverifier-component) | Contains the RDN of the owner of the signing certificate. |
| [SignatureTimestamped](#signaturetimestamped-property-pdfverifier-component) | Use this property to establish whether the signature contains an embedded timestamp. |
| [SignatureValidatedSigningTime](#signaturevalidatedsigningtime-property-pdfverifier-component) | Contains the certified signing time. |
| [SignatureValidationLog](#signaturevalidationlog-property-pdfverifier-component) | Contains the signing certificate's chain validation log. |
| [SignatureWidth](#signaturewidth-property-pdfverifier-component) | Specifies the width of the signature widget. |
| [SocketDNSMode](#socketdnsmode-property-pdfverifier-component) | Selects the DNS resolver to use: the class's (secure) built-in one, or the one provided by the system. |
| [SocketDNSPort](#socketdnsport-property-pdfverifier-component) | Specifies the port number to be used for sending queries to the DNS server. |
| [SocketDNSQueryTimeout](#socketdnsquerytimeout-property-pdfverifier-component) | The timeout (in milliseconds) for each DNS query. |
| [SocketDNSServers](#socketdnsservers-property-pdfverifier-component) | The addresses of DNS servers to use for address resolution, separated by commas or semicolons. |
| [SocketDNSTotalTimeout](#socketdnstotaltimeout-property-pdfverifier-component) | The timeout (in milliseconds) for the whole resolution process. |
| [SocketIncomingSpeedLimit](#socketincomingspeedlimit-property-pdfverifier-component) | The maximum number of bytes to read from the socket, per second. |
| [SocketLocalAddress](#socketlocaladdress-property-pdfverifier-component) | The local network interface to bind the socket to. |
| [SocketLocalPort](#socketlocalport-property-pdfverifier-component) | The local port number to bind the socket to. |
| [SocketOutgoingSpeedLimit](#socketoutgoingspeedlimit-property-pdfverifier-component) | The maximum number of bytes to write to the socket, per second. |
| [SocketTimeout](#sockettimeout-property-pdfverifier-component) | The maximum period of waiting, in milliseconds, after which the socket operation is considered unsuccessful. |
| [SocketUseIPv6](#socketuseipv6-property-pdfverifier-component) | Enables or disables IP protocol version 6. |
| [TimestampCount](#timestampcount-property-pdfverifier-component) | The number of records in the Timestamp arrays. |
| [TimestampAccuracy](#timestampaccuracy-property-pdfverifier-component) | This property indicates the accuracy of the included time mark, in microseconds. |
| [TimestampBytes](#timestampbytes-property-pdfverifier-component) | Returns the raw timestamp data in DER format. |
| [TimestampCertificateIndex](#timestampcertificateindex-property-pdfverifier-component) | Returns the index of the TSA certificate in the Certificates collection. |
| [TimestampChainValidationDetails](#timestampchainvalidationdetails-property-pdfverifier-component) | The details of a certificate chain validation outcome. |
| [TimestampChainValidationResult](#timestampchainvalidationresult-property-pdfverifier-component) | The outcome of a certificate chain validation routine. |
| [TimestampContainsLongTermInfo](#timestampcontainslongterminfo-property-pdfverifier-component) | Returns true if the signature was found to contain long-term validation details (certificates, CRLs, and OCSP response). |
| [TimestampEntityLabel](#timestampentitylabel-property-pdfverifier-component) | Use this property to get the timestamp entity label. |
| [TimestampHashAlgorithm](#timestamphashalgorithm-property-pdfverifier-component) | Returns the timestamp's hash algorithm. |
| [TimestampParentEntity](#timestampparententity-property-pdfverifier-component) | Use this property to get the label of the timestamp's parent entity. |
| [TimestampSerialNumber](#timestampserialnumber-property-pdfverifier-component) | Returns the timestamp's serial number. |
| [TimestampTime](#timestamptime-property-pdfverifier-component) | The time point incorporated into the timestamp. |
| [TimestampType](#timestamptype-property-pdfverifier-component) | Returns the type of the timestamp. |
| [TimestampTSAName](#timestamptsaname-property-pdfverifier-component) | This value uniquely identifies the Timestamp Authority (TSA). |
| [TimestampValidationLog](#timestampvalidationlog-property-pdfverifier-component) | Contains the TSA certificate chain validation log. |
| [TimestampValidationResult](#timestampvalidationresult-property-pdfverifier-component) | Contains the timestamp validation outcome. |
| [TLSClientCertCount](#tlsclientcertcount-property-pdfverifier-component) | The number of records in the TLSClientCert arrays. |
| [TLSClientCertBytes](#tlsclientcertbytes-property-pdfverifier-component) | Returns the raw certificate data in DER format. |
| [TLSClientCertHandle](#tlsclientcerthandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) | The number of records in the TLSServerCert arrays. |
| [TLSServerCertBytes](#tlsservercertbytes-property-pdfverifier-component) | Returns the raw certificate data in DER format. |
| [TLSServerCertFingerprint](#tlsservercertfingerprint-property-pdfverifier-component) | Contains the fingerprint (a hash imprint) of this certificate. |
| [TLSServerCertHandle](#tlsservercerthandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [TLSServerCertIssuer](#tlsservercertissuer-property-pdfverifier-component) | The common name of the certificate issuer (CA), typically a company name. |
| [TLSServerCertIssuerRDN](#tlsservercertissuerrdn-property-pdfverifier-component) | A list of Property=Value pairs that uniquely identify the certificate issuer. |
| [TLSServerCertKeyAlgorithm](#tlsservercertkeyalgorithm-property-pdfverifier-component) | Specifies the public key algorithm of this certificate. |
| [TLSServerCertKeyBits](#tlsservercertkeybits-property-pdfverifier-component) | Returns the length of the public key in bits. |
| [TLSServerCertKeyUsage](#tlsservercertkeyusage-property-pdfverifier-component) | Indicates the purposes of the key contained in the certificate, in the form of an OR'ed flag set. |
| [TLSServerCertSelfSigned](#tlsservercertselfsigned-property-pdfverifier-component) | Indicates whether the certificate is self-signed (root) or signed by an external CA. |
| [TLSServerCertSerialNumber](#tlsservercertserialnumber-property-pdfverifier-component) | Returns the certificate's serial number. |
| [TLSServerCertSigAlgorithm](#tlsservercertsigalgorithm-property-pdfverifier-component) | Indicates the algorithm that was used by the CA to sign this certificate. |
| [TLSServerCertSubject](#tlsservercertsubject-property-pdfverifier-component) | The common name of the certificate holder, typically an individual's name, a URL, an e-mail address, or a company name. |
| [TLSServerCertSubjectRDN](#tlsservercertsubjectrdn-property-pdfverifier-component) | A list of Property=Value pairs that uniquely identify the certificate holder (subject). |
| [TLSServerCertValidFrom](#tlsservercertvalidfrom-property-pdfverifier-component) | The time point at which the certificate becomes valid, in UTC. |
| [TLSServerCertValidTo](#tlsservercertvalidto-property-pdfverifier-component) | The time point at which the certificate expires, in UTC. |
| [TLSAutoValidateCertificates](#tlsautovalidatecertificates-property-pdfverifier-component) | Specifies whether server-side TLS certificates should be validated automatically using internal validation rules. |
| [TLSBaseConfiguration](#tlsbaseconfiguration-property-pdfverifier-component) | Selects the base configuration for the TLS settings. |
| [TLSCiphersuites](#tlsciphersuites-property-pdfverifier-component) | A list of ciphersuites separated with commas or semicolons. |
| [TLSClientAuth](#tlsclientauth-property-pdfverifier-component) | Enables or disables certificate-based client authentication. |
| [TLSExtensions](#tlsextensions-property-pdfverifier-component) | Provides access to TLS extensions. |
| [TLSForceResumeIfDestinationChanges](#tlsforceresumeifdestinationchanges-property-pdfverifier-component) | Whether to force TLS session resumption when the destination address changes. |
| [TLSGroups](#tlsgroups-property-pdfverifier-component) | Specifies a list of key exchange groups to attempt during the TLS key exchange. |
| [TLSPreSharedIdentity](#tlspresharedidentity-property-pdfverifier-component) | Defines the identity used when the PSK (Pre-Shared Key) key-exchange mechanism is negotiated. |
| [TLSPreSharedKey](#tlspresharedkey-property-pdfverifier-component) | Contains the pre-shared key for the PSK (Pre-Shared Key) key-exchange mechanism, encoded with base16. |
| [TLSPreSharedKeyCiphersuite](#tlspresharedkeyciphersuite-property-pdfverifier-component) | Defines the ciphersuite used for PSK (Pre-Shared Key) negotiation. |
| [TLSRenegotiationAttackPreventionMode](#tlsrenegotiationattackpreventionmode-property-pdfverifier-component) | Selects the renegotiation attack prevention mechanism. |
| [TLSRevocationCheck](#tlsrevocationcheck-property-pdfverifier-component) | Specifies the kind(s) of revocation check to perform. |
| [TLSSSLOptions](#tlsssloptions-property-pdfverifier-component) | Various SSL (TLS) protocol options, set of cssloExpectShutdownMessage 0x001 Wait for the close-notify message when shutting down the connection cssloOpenSSLDTLSWorkaround 0x002 (DEPRECATED) Use a DTLS version workaround when talking to very old OpenSSL versions cssloDisableKexLengthAlignment 0x004 Do not align the client-side PMS by the RSA modulus size. |
| [TLSMode](#tlsmode-property-pdfverifier-component) | Specifies the TLS mode to use. |
| [TLSUseExtendedMasterSecret](#tlsuseextendedmastersecret-property-pdfverifier-component) | Enables the Extended Master Secret Extension, as defined in RFC 7627. |
| [TLSUseSessionResumption](#tlsusesessionresumption-property-pdfverifier-component) | Enables or disables the TLS session resumption capability. |
| [TLSVersions](#tlsversions-property-pdfverifier-component) | The SSL/TLS versions to enable by default. |
| [TrustedCertCount](#trustedcertcount-property-pdfverifier-component) | The number of records in the TrustedCert arrays. |
| [TrustedCertBytes](#trustedcertbytes-property-pdfverifier-component) | Returns the raw certificate data in DER format. |
| [TrustedCertHandle](#trustedcerthandle-property-pdfverifier-component) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [ValidationMoment](#validationmoment-property-pdfverifier-component) | The time point at which signature validity is to be established. |

## Method List

*The following is the full list of the methods of the component with short descriptions. Click on the links for further details.*

|  |  |
| --- | --- |
| [Close](#close-method-pdfverifier-component) | Closes an opened document. |
| [Config](#config-method-pdfverifier-component) | Sets or retrieves a configuration setting. |
| [DoAction](#doaction-method-pdfverifier-component) | Performs an additional action. |
| [GetAttachedBytes](#getattachedbytes-method-pdfverifier-component) | Saves a PDF attachment to a byte array. |
| [GetAttachedFile](#getattachedfile-method-pdfverifier-component) | Saves a PDF attachment to a file. |
| [GetSignedVersion](#getsignedversion-method-pdfverifier-component) | Returns the part of the document that is covered by the signature. |
| [Open](#open-method-pdfverifier-component) | Opens a document for verifying or removing signatures. |
| [Reset](#reset-method-pdfverifier-component) | Resets the class settings. |
| [Revalidate](#revalidate-method-pdfverifier-component) | Revalidates a signature in accordance with current settings. |
| [SelectInfo](#selectinfo-method-pdfverifier-component) | Select signature information for a specific entity. |
| [Unsign](#unsign-method-pdfverifier-component) | Deletes a signature from the document. |
| [Verify](#verify-method-pdfverifier-component) | Verifies a signed PDF document. |

## Event List

*The following is the full list of the events fired by the component with short descriptions. Click on the links for further details.*

|  |  |
| --- | --- |
| [ChainElementDownload](#chainelementdownload-event-pdfverifier-component) | Fires when there is a need to download a chain element from an online source. |
| [ChainElementNeeded](#chainelementneeded-event-pdfverifier-component) | Fires when an element required to validate the chain was not located. |
| [ChainValidated](#chainvalidated-event-pdfverifier-component) | Reports the completion of a certificate chain validation. |
| [ChainValidationProgress](#chainvalidationprogress-event-pdfverifier-component) | This event is fired multiple times during chain validation to report various stages of the validation procedure. |
| [DocumentLoaded](#documentloaded-event-pdfverifier-component) | This event is fired when the document has been loaded into memory. |
| [Encrypted](#encrypted-event-pdfverifier-component) | Notifies the application that the document is encrypted and provides recipient certificate details if asymmetric encryption was used to encrypt the document. |
| [Error](#error-event-pdfverifier-component) | Information about errors during signing/validation. |
| [Notification](#notification-event-pdfverifier-component) | This event notifies the application about an underlying control flow event. |
| [SignatureFound](#signaturefound-event-pdfverifier-component) | Signifies the start of signature validation. |
| [SignatureValidated](#signaturevalidated-event-pdfverifier-component) | Marks the completion of the signature validation routine. |
| [TimestampFound](#timestampfound-event-pdfverifier-component) | Signifies the start of a timestamp validation routine. |
| [TimestampValidated](#timestampvalidated-event-pdfverifier-component) | Reports the completion of the timestamp validation routine. |
| [TLSCertNeeded](#tlscertneeded-event-pdfverifier-component) | Fires when a remote TLS party requests a client certificate. |
| [TLSCertValidate](#tlscertvalidate-event-pdfverifier-component) | This event is fired upon receipt of the TLS server's certificate, allowing the user to control its acceptance. |
| [TLSEstablished](#tlsestablished-event-pdfverifier-component) | Fires when a TLS handshake with Host successfully completes. |
| [TLSHandshake](#tlshandshake-event-pdfverifier-component) | Fires when a new TLS handshake is initiated, before the handshake commences. |
| [TLSShutdown](#tlsshutdown-event-pdfverifier-component) | Reports the graceful closure of a TLS connection. |

## Config Settings

*The following is a list of config settings for the component with short descriptions. Click on the links for further details.*

|  |  |
| --- | --- |
| [AlternateName](#AlternateName) | TBD. |
| [AsyncDocumentID](#AsyncDocumentID) | Specifies the document ID for SignAsyncEnd() call. |
| [BuildApplicationName](#BuildApplicationName) | Specifies the application name used to create the signature. |
| [BuildApplicationVersion](#BuildApplicationVersion) | Specifies the application version used to create the signature. |
| [BuildProperties](#BuildProperties) | Specifies the build properties of the signature. |
| [CachedCRLMaxAge](#CachedCRLMaxAge) | Specifies the maximum age of a cached CRL. |
| [CachedCRLMaxAgeRatio](#CachedCRLMaxAgeRatio) | Specifies the maximum age of a cached CRL as a percentage of its remaining lifetime. |
| [CachedCRLOverlapTime](#CachedCRLOverlapTime) | Specifies the time period before a cached CRL's NextUpdate when it is considered stale and must be refreshed. |
| [CachedOCSPResponseMaxAge](#CachedOCSPResponseMaxAge) | Specifies the maximum age of a cached OCSP response. |
| [CachedOCSPResponseMaxAgeRatio](#CachedOCSPResponseMaxAgeRatio) | Specifies the maximum age of a cached OCSP response as a percentage of its remaining lifetime. |
| [CachedOCSPResponseOverlapTime](#CachedOCSPResponseOverlapTime) | Specifies the time period before a cached OCSP response's NextUpdate when it is considered stale and must be refreshed. |
| [ChainCurrentCACert](#ChainCurrentCACert) | Returns the current CA certificate. |
| [ChainCurrentCert](#ChainCurrentCert) | Returns the certificate that is currently being validated. |
| [ChainCurrentCRL](#ChainCurrentCRL) | Returns the current CRL. |
| [ChainCurrentCRLSize](#ChainCurrentCRLSize) | Returns the size of the current CRL. |
| [ChainCurrentOCSP](#ChainCurrentOCSP) | Returns the current OCSP response. |
| [ChainCurrentOCSPSigner](#ChainCurrentOCSPSigner) | Returns the signer of the current OCSP object. |
| [ChainInterimDetails](#ChainInterimDetails) | Returns the current interim validation details. |
| [ChainInterimResult](#ChainInterimResult) | Returns the current interim validation result. |
| [CheckValidityPeriodForTrusted](#CheckValidityPeriodForTrusted) | Whether to check validity period for trusted certificates. |
| [ConfigPreferLegacyLevels](#ConfigPreferLegacyLevels) | Indicates whether legacy signature levels should be preferred. |
| [CustomSignedAttributes](#CustomSignedAttributes) | TBD. |
| [CustomTrustedLists](#CustomTrustedLists) | Specifies the custom TrustedLists. |
| [CustomTSLs](#CustomTSLs) | Specifies the custom TrustedLists. |
| [CustomUnsignedAttributes](#CustomUnsignedAttributes) | TBD. |
| [DeltaCRLPreference](#DeltaCRLPreference) | Specifies whether complete or delta CRLs are preferred. |
| [DislikeOpenEndedOCSPs](#DislikeOpenEndedOCSPs) | Tells the class to discourage OCSP responses without an explicit NextUpdate parameter. |
| [DocumentVersion](#DocumentVersion) | The document version from the PDF document header. |
| [DTSAccuracy](#DTSAccuracy) | Indicates the accuracy of the document timestamp. |
| [DTSSerialNumber](#DTSSerialNumber) | Indicates the serial number of the document timestamp. |
| [DTSTime](#DTSTime) | Indicates the time of the document timestamp. |
| [DTSTSAName](#DTSTSAName) | Indicates the TSA name of the document timestamp. |
| [EmptySignatureFieldAddRevInfo\[Index\]](#EmptySignatureFieldAddRevInfo[Index]) | Specifies if revocation checking should be performed. |
| [EmptySignatureFieldAlternateName\[Index\]](#EmptySignatureFieldAlternateName[Index]) | Contains an alternate field name. |
| [EmptySignatureFieldCount](#EmptySignatureFieldCount) | The number of empty signature form fields. |
| [EmptySignatureFieldFlags\[Index\]](#EmptySignatureFieldFlags[Index]) | The field flags of the signature form field. |
| [EmptySignatureFieldHeight\[Index\]](#EmptySignatureFieldHeight[Index]) | The Height of the empty signature form field. |
| [EmptySignatureFieldInvisible\[Index\]](#EmptySignatureFieldInvisible[Index]) | The visibility status of the field. |
| [EmptySignatureFieldLegalAttestations\[Index\]](#EmptySignatureFieldLegalAttestations[Index]) | Specifies the legal attestations that are associated with the signature. |
| [EmptySignatureFieldMappingName\[Index\]](#EmptySignatureFieldMappingName[Index]) | The mapping name to be used when exporting form field data from the document. |
| [EmptySignatureFieldName\[Index\]](#EmptySignatureFieldName[Index]) | Textual field name. |
| [EmptySignatureFieldOffsetX\[Index\]](#EmptySignatureFieldOffsetX[Index]) | The field's offset from the left page border. |
| [EmptySignatureFieldOffsetY\[Index\]](#EmptySignatureFieldOffsetY[Index]) | The field's offset from the bottom page border. |
| [EmptySignatureFieldPage\[Index\]](#EmptySignatureFieldPage[Index]) | The index of the form field's page in the document. |
| [EmptySignatureFieldRequiredAllowedChanges\[Index\]](#EmptySignatureFieldRequiredAllowedChanges[Index]) | Specifies the changes allowed by the signature. |
| [EmptySignatureFieldRequiredConstraints\[Index\]](#EmptySignatureFieldRequiredConstraints[Index]) | Specifies the required Seed Value Dictionary (SVD) constraints. |
| [EmptySignatureFieldRequiredDigestAlgorithms\[Index\]](#EmptySignatureFieldRequiredDigestAlgorithms[Index]) | Specifies the required digest algorithms. |
| [EmptySignatureFieldRequiredFilter\[Index\]](#EmptySignatureFieldRequiredFilter[Index]) | Specifies the required filter. |
| [EmptySignatureFieldRequiredLockAction\[Index\]](#EmptySignatureFieldRequiredLockAction[Index]) | Indicates which set of fields shall be locked. |
| [EmptySignatureFieldRequiredLockFields\[Index\]](#EmptySignatureFieldRequiredLockFields[Index]) | Indicates the fields that shall be locked on signing. |
| [EmptySignatureFieldRequiredReasons\[Index\]](#EmptySignatureFieldRequiredReasons[Index]) | Specifies the required reasons. |
| [EmptySignatureFieldRequiredSubfilters\[Index\]](#EmptySignatureFieldRequiredSubfilters[Index]) | Specifies the required subfilters. |
| [EmptySignatureFieldTimestampRequired\[Index\]](#EmptySignatureFieldTimestampRequired[Index]) | Specifies if the signature should be timestamped. |
| [EmptySignatureFieldTSPURL\[Index\]](#EmptySignatureFieldTSPURL[Index]) | URL for a TSP server. |
| [EmptySignatureFieldWidth\[Index\]](#EmptySignatureFieldWidth[Index]) | The Width of the empty signature form field. |
| [EnableOldSignatures](#EnableOldSignatures) | Enables support for prehistoric adbe.x509.sha1 signatures. |
| [EncryptionHandlerName](#EncryptionHandlerName) | Specifies the custom security handler PDF-name. |
| [EvaluateSystemTrust](#EvaluateSystemTrust) | Enables or disables usage of the platform's built-in trust validation facilities. |
| [EvaluateSystemTrustForSelfSignedCertificates](#EvaluateSystemTrustForSelfSignedCertificates) | Enables or disables usage of the platform's built-in trust validation facilities for self-signed certificates. |
| [EvaluateSystemTrustForSSL](#EvaluateSystemTrustForSSL) | Enables or disables usage of the platform's built-in trust validation facilities for SSL/TLS. |
| [ForceCompleteChainValidation](#ForceCompleteChainValidation) | Whether to check the CA certificates when the signing certificate is invalid. |
| [ForceCompleteChainValidationForTrusted](#ForceCompleteChainValidationForTrusted) | Whether to continue with the full validation up to the root CA certificate for mid-level trust anchors. |
| [GracePeriod](#GracePeriod) | Specifies a grace period to apply during revocation information checks. |
| [HardenedKeyGeneration](#HardenedKeyGeneration) | Specifies if hardened Key generation should be used. |
| [IgnoreChainLoops](#IgnoreChainLoops) | Whether chain loops should be ignored. |
| [IgnoreChainValidationErrors](#IgnoreChainValidationErrors) | Whether to ignore any certificate chain validation issues. |
| [IgnoreOCSPNoCheckExtension](#IgnoreOCSPNoCheckExtension) | Whether the OCSP NoCheck extension should be ignored. |
| [IgnoreSystemTrust](#IgnoreSystemTrust) | Whether trusted Windows Certificate Stores should be treated as trusted. |
| [IgnoreTimestampChainValidityForLevelDetection](#IgnoreTimestampChainValidityForLevelDetection) | Specify whether timestamp chain validity should be ignored during signature level detection. |
| [ImplicitlyTrustSelfSignedCertificates](#ImplicitlyTrustSelfSignedCertificates) | Whether to trust self-signed certificates. |
| [IsLTVEnabled](#IsLTVEnabled) | Indicates LTV-enabled signature. |
| [MappingName](#MappingName) | TBD. |
| [MDPHashAlgorithm](#MDPHashAlgorithm) | Specifies the MDP hash algorithm. |
| [PageInfoCount](#PageInfoCount) | The number of pages. |
| [PageInfoCropBoxEmpty\[Index\]](#PageInfoCropBoxEmpty[Index]) | Check if the page's crop box is empty or not. |
| [PageInfoCropLLX\[Index\]](#PageInfoCropLLX[Index]) | Defines the X coordinate of the lower left corner of the crop box. |
| [PageInfoCropLLY\[Index\]](#PageInfoCropLLY[Index]) | Defines the Y coordinate of the lower left corner of the crop box. |
| [PageInfoCropURX\[Index\]](#PageInfoCropURX[Index]) | Defines the X coordinate of the upper right corner of the crop box. |
| [PageInfoCropURY\[Index\]](#PageInfoCropURY[Index]) | Defines the Y coordinate of the upper right corner of the crop box. |
| [PageInfoHeight\[Index\]](#PageInfoHeight[Index]) | The Height of the page. |
| [PageInfoMediaLLX\[Index\]](#PageInfoMediaLLX[Index]) | Defines the X coordinate of the lower left corner of the media box. |
| [PageInfoMediaLLY\[Index\]](#PageInfoMediaLLY[Index]) | Defines the Y coordinate of the lower left corner of the media box. |
| [PageInfoMediaURX\[Index\]](#PageInfoMediaURX[Index]) | Defines the X coordinate of the upper right corner of the media box. |
| [PageInfoMediaURY\[Index\]](#PageInfoMediaURY[Index]) | Defines the Y coordinate of the upper right corner of the media box. |
| [PageInfoRotate\[Index\]](#PageInfoRotate[Index]) | The Rotate value of the page. |
| [PageInfoUserUnit\[Index\]](#PageInfoUserUnit[Index]) | Defines the size of default user space units. |
| [PageInfoWidth\[Index\]](#PageInfoWidth[Index]) | The Width of the page. |
| [PolicyDescription](#PolicyDescription) | signature policy description. |
| [PolicyExplicitText](#PolicyExplicitText) | The explicit text of the user notice. |
| [PolicyUNNumbers](#PolicyUNNumbers) | The noticeNumbers part of the NoticeReference CAdES attribute. |
| [PolicyUNOrganization](#PolicyUNOrganization) | The organization part of the NoticeReference qualifier. |
| [ProductionPlace](#ProductionPlace) | Identifies the place of the signature production. |
| [PromoteLongOCSPResponses](#PromoteLongOCSPResponses) | Whether long OCSP responses are requested. |
| [PSSUsed](#PSSUsed) | Whether to use RSASSA-PSS algorithm. |
| [RC4KeyBits](#RC4KeyBits) | Specifies the number of key bits used for the RC4 algorithm. |
| [ReassembleMode](#ReassembleMode) | Specifies the document reassemble mode. |
| [RevocationCacheAgePolicy](#RevocationCacheAgePolicy) | Specifies a preset policy for cached CRL and OCSP response freshness settings. |
| [SchemeParams](#SchemeParams) | The algorithm scheme parameters to employ. |
| [SigPolicyDescription](#SigPolicyDescription) | signature policy description. |
| [SigPolicyExplicitText](#SigPolicyExplicitText) | The explicit text of the user notice. |
| [SigPolicyHash](#SigPolicyHash) | The EPES policy hash. |
| [SigPolicyHashAlgorithm](#SigPolicyHashAlgorithm) | The hash algorithm that was used to generate the EPES policy hash. |
| [SigPolicyID](#SigPolicyID) | The EPES policy ID. |
| [SigPolicyNoticeNumbers](#SigPolicyNoticeNumbers) | The noticeNumbers part of the NoticeReference CAdES attribute. |
| [SigPolicyNoticeOrganization](#SigPolicyNoticeOrganization) | The organization part of the NoticeReference qualifier. |
| [SigPolicyURI](#SigPolicyURI) | The EPES policy URI. |
| [TempPath](#TempPath) | Path for storing temporary files. |
| [TimestampResponse](#TimestampResponse) | A base16-encoded timestamp response received from a TSA. |
| [TLSChainValidationDetails](#TLSChainValidationDetails) | Contains the advanced details of the TLS server certificate validation. |
| [TLSChainValidationResult](#TLSChainValidationResult) | Contains the result of the TLS server certificate validation. |
| [TLSClientAuthRequested](#TLSClientAuthRequested) | Indicates whether the TLS server requests client authentication. |
| [TLSValidationLog](#TLSValidationLog) | Contains the log of the TLS server certificate validation. |
| [TolerateMinorChainIssues](#TolerateMinorChainIssues) | Whether to tolerate minor chain issues. |
| [TspAttemptCount](#TspAttemptCount) | Specifies the number of timestamping request attempts. |
| [TspHashAlgorithm](#TspHashAlgorithm) | Sets a specific hash algorithm for use with the timestamping service. |
| [TspReqPolicy](#TspReqPolicy) | Sets a request policy ID to include in the timestamping request. |
| [UseDefaultTrustedLists](#UseDefaultTrustedLists) | Enables or disables the use of the default TrustedLists. |
| [UseDefaultTSLs](#UseDefaultTSLs) | Enables or disables the use of the default TrustedLists. |
| [UseEnvStorages](#UseEnvStorages) | Enables or disables use of the environment storages. |
| [UseMicrosoftCTL](#UseMicrosoftCTL) | Enables or disables the automatic use of the Microsoft online certificate trust list. |
| [UsePSS](#UsePSS) | Whether to use RSASSA-PSS algorithm. |
| [UseSystemCertificates](#UseSystemCertificates) | Enables or disables the use of the system certificates. |
| [UseValidationCache](#UseValidationCache) | Enables or disable the use of the product-wide certificate chain validation cache. |
| [UseValidatorSettingsForTLSValidation](#UseValidatorSettingsForTLSValidation) | Whether to employ the primary chain validator setup for auxiliary TLS chain validations. |
| [WidgetHeight](#WidgetHeight) | Specifies the height of the signature widget. |
| [WidgetOffsetX](#WidgetOffsetX) | Specifies the signature widget offset from the left-hand page border. |
| [WidgetOffsetY](#WidgetOffsetY) | Specifies the signature widget offset from the bottom page border. |
| [WidgetWidth](#WidgetWidth) | Specifies the width of the signature widget. |
| [XMPMetadataContent](#XMPMetadataContent) | The XMP metadata content. |
| [ASN1UseGlobalTagCache](#ASN1UseGlobalTagCache) | Controls whether ASN.1 module should use a global object cache. |
| [AssignSystemSmartCardPins](#AssignSystemSmartCardPins) | Specifies whether CSP-level PINs should be assigned to CNG keys. |
| [CheckKeyIntegrityBeforeUse](#CheckKeyIntegrityBeforeUse) | Enables or disable private key integrity check before use. |
| [CookieCaching](#CookieCaching) | Specifies whether a cookie cache should be used for HTTP(S) transports. |
| [Cookies](#Cookies) | Gets or sets local cookies for the class. |
| [DefDeriveKeyIterations](#DefDeriveKeyIterations) | Specifies the default key derivation algorithm iteration count. |
| [DNSLocalSuffix](#DNSLocalSuffix) | The suffix to assign for TLD names. |
| [EnableClientSideSSLFFDHE](#EnableClientSideSSLFFDHE) | Enables or disables finite field DHE key exchange support in TLS clients. |
| [EnableSSHMLKEM](#EnableSSHMLKEM) | Enables support for ML-KEM/hybrid key exchange algorithms in SSH client and server classes. |
| [EnableTLSMLKEM](#EnableTLSMLKEM) | Enables support for ML-KEM and hybrid groups in TLS client and server classes. |
| [GlobalCookies](#GlobalCookies) | Gets or sets global cookies for all the HTTP transports. |
| [HardwareCryptoUsePolicy](#HardwareCryptoUsePolicy) | The hardware crypto usage policy. |
| [HttpUserAgent](#HttpUserAgent) | Specifies the user agent name to be used by all HTTP clients. |
| [HttpVersion](#HttpVersion) | The HTTP version to use in any inner HTTP client classes created. |
| [IgnoreExpiredMSCTLSigningCert](#IgnoreExpiredMSCTLSigningCert) | Whether to tolerate the expired Windows Update signing certificate. |
| [ListDelimiter](#ListDelimiter) | The delimiter character for multi-element lists. |
| [LogDestination](#LogDestination) | Specifies the debug log destination. |
| [LogDetails](#LogDetails) | Specifies the debug log details to dump. |
| [LogFile](#LogFile) | Specifies the debug log filename. |
| [LogFilters](#LogFilters) | Specifies the debug log filters. |
| [LogFlushMode](#LogFlushMode) | Specifies the log flush mode. |
| [LogLevel](#LogLevel) | Specifies the debug log level. |
| [LogMaxEventCount](#LogMaxEventCount) | Specifies the maximum number of events to cache before further action is taken. |
| [LogRotationMode](#LogRotationMode) | Specifies the log rotation mode. |
| [MaxASN1BufferLength](#MaxASN1BufferLength) | Specifies the maximal allowed length for ASN.1 primitive tag data. |
| [MaxASN1TreeDepth](#MaxASN1TreeDepth) | Specifies the maximal depth for processed ASN.1 trees. |
| [OCSPHashAlgorithm](#OCSPHashAlgorithm) | Specifies the hash algorithm to be used to identify certificates in OCSP requests. |
| [OldClientSideRSAFallback](#OldClientSideRSAFallback) | Specifies whether the SSH client should use a SHA1 fallback. |
| [PKICache](#PKICache) | Specifies which PKI elements (certificates, CRLs, OCSP responses) should be cached. |
| [PKICachePath](#PKICachePath) | Specifies the file system path where cached PKI data is stored. |
| [ProductVersion](#ProductVersion) | Returns the version of the SecureBlackbox library. |
| [ServerSSLDHKeyLength](#ServerSSLDHKeyLength) | Sets the size of the TLS DHE key exchange group. |
| [StaticDNS](#StaticDNS) | Specifies whether static DNS rules should be used. |
| [StaticIPAddress\[domain\]](#StaticIPAddress[domain]) | Gets or sets an IP address for the specified domain name. |
| [StaticIPAddresses](#StaticIPAddresses) | Gets or sets all the static DNS rules. |
| [Tag](#Tag) | Allows to store any custom data. |
| [TLSSessionGroup](#TLSSessionGroup) | Specifies the group name of TLS sessions to be used for session resumption. |
| [TLSSessionLifetime](#TLSSessionLifetime) | Specifies lifetime in seconds of the cached TLS session. |
| [TLSSessionPurgeInterval](#TLSSessionPurgeInterval) | Specifies how often the session cache should remove the expired TLS sessions. |
| [UseCRLObjectCaching](#UseCRLObjectCaching) | Specifies whether reuse of loaded CRL objects is enabled. |
| [UseInternalRandom](#UseInternalRandom) | Switches between SecureBlackbox-own and platform PRNGs. |
| [UseLegacyAdESValidation](#UseLegacyAdESValidation) | Enables legacy AdES validation mode. |
| [UseOCSPResponseObjectCaching](#UseOCSPResponseObjectCaching) | Specifies whether reuse of loaded OCSP response objects is enabled. |
| [UseOwnDNSResolver](#UseOwnDNSResolver) | Specifies whether the client classes should use own DNS resolver. |
| [UseSharedSystemStorages](#UseSharedSystemStorages) | Specifies whether the validation engine should use a global per-process copy of the system certificate stores. |
| [UseSystemNativeSizeCalculation](#UseSystemNativeSizeCalculation) | An internal CryptoAPI access tweak. |
| [UseSystemOAEPAndPSS](#UseSystemOAEPAndPSS) | Enforces or disables the use of system-driven RSA OAEP and PSS computations. |
| [UseSystemRandom](#UseSystemRandom) | Enables or disables the use of the OS PRNG. |
| [XMLRDNDescriptorName\[OID\]](#XMLRDNDescriptorName[OID]) | Defines an OID mapping to descriptor names for the certificate's IssuerRDN or SubjectRDN. |
| [XMLRDNDescriptorPriority\[OID\]](#XMLRDNDescriptorPriority[OID]) | Specifies the priority of descriptor names associated with a specific OID. |
| [XMLRDNDescriptorReverseOrder](#XMLRDNDescriptorReverseOrder) | Specifies whether to reverse the order of descriptors in RDN. |
| [XMLRDNDescriptorSeparator](#XMLRDNDescriptorSeparator) | Specifies the separator used between descriptors in RDN. |

# AllSignaturesValid Property ([PDFVerifier](#pdfverifier-component) Component)

The cumulative validity of all signatures.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AllSignaturesValid() (bool, error)
```

## Default Value

false

## Remarks

Use this property to check if all the signatures found in the message or document are valid.

This property is read-only.

## Data Type

**bool**

# AttachedFileCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the AttachedFiles arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFileCount() (int32, error)
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [AttachedFilesContentSubtype](#attachedfilescontentsubtype-property-pdfverifier-component)
- [AttachedFilesContentType](#attachedfilescontenttype-property-pdfverifier-component)
- [AttachedFilesCreationDate](#attachedfilescreationdate-property-pdfverifier-component)
- [AttachedFilesData](#attachedfilesdata-property-pdfverifier-component)
- [AttachedFilesDescription](#attachedfilesdescription-property-pdfverifier-component)
- [AttachedFilesFileName](#attachedfilesfilename-property-pdfverifier-component)
- [AttachedFilesHandle](#attachedfileshandle-property-pdfverifier-component)
- [AttachedFilesID](#attachedfilesid-property-pdfverifier-component)
- [AttachedFilesModificationDate](#attachedfilesmodificationdate-property-pdfverifier-component)
- [AttachedFilesReadDate](#attachedfilesreaddate-property-pdfverifier-component)
- [AttachedFilesSize](#attachedfilessize-property-pdfverifier-component)

The array indices start at *0* and end at *AttachedFileCount - 1*.

This property is read-only.

## Data Type

**int32**

# AttachedFilesContentSubtype Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the content subtype of the attachment.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesContentSubtype(AttachedFileIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the content subtype of the attachment.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# AttachedFilesContentType Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the content type of the attachment.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesContentType(AttachedFileIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the content type of the attachment.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# AttachedFilesCreationDate Property ([PDFVerifier](#pdfverifier-component) Component)

The creation date.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesCreationDate(AttachedFileIndex int32) (string, error)
```

## Default Value

""

## Remarks

The creation date.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# AttachedFilesData Property ([PDFVerifier](#pdfverifier-component) Component)

The content of the attachment.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesData(AttachedFileIndex int32) ([]byte, error)
```

## Remarks

The content of the attachment.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# AttachedFilesDescription Property ([PDFVerifier](#pdfverifier-component) Component)

Textual description of the attachment.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesDescription(AttachedFileIndex int32) (string, error)
```

## Default Value

""

## Remarks

Textual description of the attachment.

This property maps to the Content-Description e-mail header field. Although the field is optional, the ability to associate descriptive information with a given body is often desirable. One example is specifying the title of an image using this property.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# AttachedFilesFileName Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the name of the attachment file.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesFileName(AttachedFileIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the name of the attachment file.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# AttachedFilesHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesHandle(AttachedFileIndex int32) (int64, error)
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int64**

# AttachedFilesID Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the attachment's unique identifier.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesID(AttachedFileIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the attachment's unique identifier.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# AttachedFilesModificationDate Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the date and time of the file's last modification.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesModificationDate(AttachedFileIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the date and time of the file's last modification.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# AttachedFilesReadDate Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the file's last read date.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesReadDate(AttachedFileIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the file's last read date.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# AttachedFilesSize Property ([PDFVerifier](#pdfverifier-component) Component)

The attachment's size in bytes.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AttachedFilesSize(AttachedFileIndex int32) (int64, error)
```

## Default Value

0

## Remarks

The attachment's size in bytes.

The *AttachedFileIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [AttachedFileCount](#attachedfilecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int64**

# AutoValidateSignatures Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies whether PDFVerifier should validate any present signatures when the document is opened.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) AutoValidateSignatures() (bool, error)func (obj *PDFVerifier) SetAutoValidateSignatures(value bool) error
```

## Default Value

true

## Remarks

This setting is switched on by default. You can choose to set this property to false in order to validate the signatures manually on a later stage using the [Revalidate](#revalidate-method-pdfverifier-component) method.

## Data Type

**bool**

# BlockedCertCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the BlockedCert arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) BlockedCertCount() (int32, error)func (obj *PDFVerifier) SetBlockedCertCount(value int32) error
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [BlockedCertBytes](#blockedcertbytes-property-pdfverifier-component)
- [BlockedCertHandle](#blockedcerthandle-property-pdfverifier-component)

The array indices start at *0* and end at *BlockedCertCount - 1*.

## Data Type

**int32**

# BlockedCertBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw certificate data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) BlockedCertBytes(BlockedCertIndex int32) ([]byte, error)
```

## Remarks

Returns the raw certificate data in DER format.

The *BlockedCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [BlockedCertCount](#blockedcertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# BlockedCertHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) BlockedCertHandle(BlockedCertIndex int32) (int64, error)func (obj *PDFVerifier) SetBlockedCertHandle(BlockedCertIndex int32, value int64) error
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *BlockedCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [BlockedCertCount](#blockedcertcount-property-pdfverifier-component) property.

## Data Type

**int64**

# CertCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the Cert arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertCount() (int32, error)
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [CertBytes](#certbytes-property-pdfverifier-component)
- [CertCA](#certca-property-pdfverifier-component)
- [CertCAKeyID](#certcakeyid-property-pdfverifier-component)
- [CertCRLDistributionPoints](#certcrldistributionpoints-property-pdfverifier-component)
- [CertCurve](#certcurve-property-pdfverifier-component)
- [CertFingerprint](#certfingerprint-property-pdfverifier-component)
- [CertFriendlyName](#certfriendlyname-property-pdfverifier-component)
- [CertHandle](#certhandle-property-pdfverifier-component)
- [CertHashAlgorithm](#certhashalgorithm-property-pdfverifier-component)
- [CertIssuer](#certissuer-property-pdfverifier-component)
- [CertIssuerRDN](#certissuerrdn-property-pdfverifier-component)
- [CertKeyAlgorithm](#certkeyalgorithm-property-pdfverifier-component)
- [CertKeyBits](#certkeybits-property-pdfverifier-component)
- [CertKeyFingerprint](#certkeyfingerprint-property-pdfverifier-component)
- [CertKeyUsage](#certkeyusage-property-pdfverifier-component)
- [CertKeyValid](#certkeyvalid-property-pdfverifier-component)
- [CertOCSPLocations](#certocsplocations-property-pdfverifier-component)
- [CertOCSPNoCheck](#certocspnocheck-property-pdfverifier-component)
- [CertOrigin](#certorigin-property-pdfverifier-component)
- [CertPolicyIDs](#certpolicyids-property-pdfverifier-component)
- [CertPrivateKeyBytes](#certprivatekeybytes-property-pdfverifier-component)
- [CertPrivateKeyExists](#certprivatekeyexists-property-pdfverifier-component)
- [CertPrivateKeyExtractable](#certprivatekeyextractable-property-pdfverifier-component)
- [CertPublicKeyBytes](#certpublickeybytes-property-pdfverifier-component)
- [CertQualified](#certqualified-property-pdfverifier-component)
- [CertQualifiedStatements](#certqualifiedstatements-property-pdfverifier-component)
- [CertQualifiers](#certqualifiers-property-pdfverifier-component)
- [CertSelfSigned](#certselfsigned-property-pdfverifier-component)
- [CertSerialNumber](#certserialnumber-property-pdfverifier-component)
- [CertSigAlgorithm](#certsigalgorithm-property-pdfverifier-component)
- [CertSource](#certsource-property-pdfverifier-component)
- [CertSubject](#certsubject-property-pdfverifier-component)
- [CertSubjectAlternativeName](#certsubjectalternativename-property-pdfverifier-component)
- [CertSubjectKeyID](#certsubjectkeyid-property-pdfverifier-component)
- [CertSubjectRDN](#certsubjectrdn-property-pdfverifier-component)
- [CertType](#certtype-property-pdfverifier-component)
- [CertValid](#certvalid-property-pdfverifier-component)
- [CertValidFrom](#certvalidfrom-property-pdfverifier-component)
- [CertValidTo](#certvalidto-property-pdfverifier-component)

The array indices start at *0* and end at *CertCount - 1*.

This property is read-only.

## Data Type

**int32**

# CertBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw certificate data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertBytes(CertIndex int32) ([]byte, error)
```

## Remarks

Returns the raw certificate data in DER format.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CertCA Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates whether the certificate has a CA capability.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertCA(CertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Indicates whether the certificate has a CA capability. For the certificate to be considered a CA, it must have its Basic Constraints extension set with the CA indicator enabled.

Set this property when generating a new certificate to have its Basic Constraints extension generated automatically.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# CertCAKeyID Property ([PDFVerifier](#pdfverifier-component) Component)

A unique identifier (fingerprint) of the CA certificate's cryptographic key.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertCAKeyID(CertIndex int32) ([]byte, error)
```

## Remarks

A unique identifier (fingerprint) of the CA certificate's cryptographic key.

Authority Key Identifier is a certificate extension which allows identification of certificates belonging to the same issuer, but with different public keys. It is a de-facto standard to include this extension in all certificates to facilitate chain building.

This setting cannot be set when generating a certificate as it always derives from another certificate property. [CertificateManager](#CertificateManager) generates this setting automatically if enough information is available to it: for self-signed certificates, this value is copied from the [CertSubjectKeyID](#certsubjectkeyid-property-pdfverifier-component) setting, and for lower-level certificates, from the parent certificate's subject key ID extension.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CertType Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the type of the entity contained in the Certificate object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertType(CertIndex int32) (int32, error)
```

## Possible Values

```text
0   // Unknown1   // X509Certificate2   // X509CertificateRequest
```

## Default Value

0

## Remarks

Returns the type of the entity contained in the [Certificate](#Type_Certificate) object.

A [Certificate](#Type_Certificate) object can contain two types of cryptographic objects: a ready-to-use X.509 certificate, or a certificate request ("an unsigned certificate"). Certificate requests can be upgraded to full certificates by signing them with a CA certificate.

Use the [CertificateManager](#CertificateManager) struct to load or create new certificate and certificate requests objects.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# CertCRLDistributionPoints Property ([PDFVerifier](#pdfverifier-component) Component)

Contains a list of locations of CRL distribution points used to check this certificate's validity.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertCRLDistributionPoints(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains a list of locations of CRL distribution points used to check this certificate's validity. The list is taken from the respective certificate extension.

Use this property when generating a certificate to provide a list of CRL endpoints that should be made part of the new certificate.

The endpoints are provided as a list of CRLF-separated URLs. Note that this differs from the behaviour used in earlier product versions, where the "|" character was used as the location separator.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertCurve Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the elliptic curve associated with the certificate's public key.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertCurve(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the elliptic curve associated with the certificate's public key. This setting only applies to certificates containing EC keys.

|  |  |  |
| --- | --- | --- |
| SB_EC_SECP112R1 | SECP112R1 |  |
| SB_EC_SECP112R2 | SECP112R2 |  |
| SB_EC_SECP128R1 | SECP128R1 |  |
| SB_EC_SECP128R2 | SECP128R2 |  |
| SB_EC_SECP160K1 | SECP160K1 |  |
| SB_EC_SECP160R1 | SECP160R1 |  |
| SB_EC_SECP160R2 | SECP160R2 |  |
| SB_EC_SECP192K1 | SECP192K1 |  |
| SB_EC_SECP192R1 | SECP192R1 |  |
| SB_EC_SECP224K1 | SECP224K1 |  |
| SB_EC_SECP224R1 | SECP224R1 |  |
| SB_EC_SECP256K1 | SECP256K1 |  |
| SB_EC_SECP256R1 | SECP256R1 |  |
| SB_EC_SECP384R1 | SECP384R1 |  |
| SB_EC_SECP521R1 | SECP521R1 |  |
| SB_EC_SECT113R1 | SECT113R1 |  |
| SB_EC_SECT113R2 | SECT113R2 |  |
| SB_EC_SECT131R1 | SECT131R1 |  |
| SB_EC_SECT131R2 | SECT131R2 |  |
| SB_EC_SECT163K1 | SECT163K1 |  |
| SB_EC_SECT163R1 | SECT163R1 |  |
| SB_EC_SECT163R2 | SECT163R2 |  |
| SB_EC_SECT193R1 | SECT193R1 |  |
| SB_EC_SECT193R2 | SECT193R2 |  |
| SB_EC_SECT233K1 | SECT233K1 |  |
| SB_EC_SECT233R1 | SECT233R1 |  |
| SB_EC_SECT239K1 | SECT239K1 |  |
| SB_EC_SECT283K1 | SECT283K1 |  |
| SB_EC_SECT283R1 | SECT283R1 |  |
| SB_EC_SECT409K1 | SECT409K1 |  |
| SB_EC_SECT409R1 | SECT409R1 |  |
| SB_EC_SECT571K1 | SECT571K1 |  |
| SB_EC_SECT571R1 | SECT571R1 |  |
| SB_EC_PRIME192V1 | PRIME192V1 |  |
| SB_EC_PRIME192V2 | PRIME192V2 |  |
| SB_EC_PRIME192V3 | PRIME192V3 |  |
| SB_EC_PRIME239V1 | PRIME239V1 |  |
| SB_EC_PRIME239V2 | PRIME239V2 |  |
| SB_EC_PRIME239V3 | PRIME239V3 |  |
| SB_EC_PRIME256V1 | PRIME256V1 |  |
| SB_EC_C2PNB163V1 | C2PNB163V1 |  |
| SB_EC_C2PNB163V2 | C2PNB163V2 |  |
| SB_EC_C2PNB163V3 | C2PNB163V3 |  |
| SB_EC_C2PNB176W1 | C2PNB176W1 |  |
| SB_EC_C2TNB191V1 | C2TNB191V1 |  |
| SB_EC_C2TNB191V2 | C2TNB191V2 |  |
| SB_EC_C2TNB191V3 | C2TNB191V3 |  |
| SB_EC_C2ONB191V4 | C2ONB191V4 |  |
| SB_EC_C2ONB191V5 | C2ONB191V5 |  |
| SB_EC_C2PNB208W1 | C2PNB208W1 |  |
| SB_EC_C2TNB239V1 | C2TNB239V1 |  |
| SB_EC_C2TNB239V2 | C2TNB239V2 |  |
| SB_EC_C2TNB239V3 | C2TNB239V3 |  |
| SB_EC_C2ONB239V4 | C2ONB239V4 |  |
| SB_EC_C2ONB239V5 | C2ONB239V5 |  |
| SB_EC_C2PNB272W1 | C2PNB272W1 |  |
| SB_EC_C2PNB304W1 | C2PNB304W1 |  |
| SB_EC_C2TNB359V1 | C2TNB359V1 |  |
| SB_EC_C2PNB368W1 | C2PNB368W1 |  |
| SB_EC_C2TNB431R1 | C2TNB431R1 |  |
| SB_EC_NISTP192 | NISTP192 |  |
| SB_EC_NISTP224 | NISTP224 |  |
| SB_EC_NISTP256 | NISTP256 |  |
| SB_EC_NISTP384 | NISTP384 |  |
| SB_EC_NISTP521 | NISTP521 |  |
| SB_EC_NISTB163 | NISTB163 |  |
| SB_EC_NISTB233 | NISTB233 |  |
| SB_EC_NISTB283 | NISTB283 |  |
| SB_EC_NISTB409 | NISTB409 |  |
| SB_EC_NISTB571 | NISTB571 |  |
| SB_EC_NISTK163 | NISTK163 |  |
| SB_EC_NISTK233 | NISTK233 |  |
| SB_EC_NISTK283 | NISTK283 |  |
| SB_EC_NISTK409 | NISTK409 |  |
| SB_EC_NISTK571 | NISTK571 |  |
| SB_EC_GOSTCPTEST | GOSTCPTEST |  |
| SB_EC_GOSTCPA | GOSTCPA |  |
| SB_EC_GOSTCPB | GOSTCPB |  |
| SB_EC_GOSTCPC | GOSTCPC |  |
| SB_EC_GOSTCPXCHA | GOSTCPXCHA |  |
| SB_EC_GOSTCPXCHB | GOSTCPXCHB |  |
| SB_EC_BRAINPOOLP160R1 | BRAINPOOLP160R1 |  |
| SB_EC_BRAINPOOLP160T1 | BRAINPOOLP160T1 |  |
| SB_EC_BRAINPOOLP192R1 | BRAINPOOLP192R1 |  |
| SB_EC_BRAINPOOLP192T1 | BRAINPOOLP192T1 |  |
| SB_EC_BRAINPOOLP224R1 | BRAINPOOLP224R1 |  |
| SB_EC_BRAINPOOLP224T1 | BRAINPOOLP224T1 |  |
| SB_EC_BRAINPOOLP256R1 | BRAINPOOLP256R1 |  |
| SB_EC_BRAINPOOLP256T1 | BRAINPOOLP256T1 |  |
| SB_EC_BRAINPOOLP320R1 | BRAINPOOLP320R1 |  |
| SB_EC_BRAINPOOLP320T1 | BRAINPOOLP320T1 |  |
| SB_EC_BRAINPOOLP384R1 | BRAINPOOLP384R1 |  |
| SB_EC_BRAINPOOLP384T1 | BRAINPOOLP384T1 |  |
| SB_EC_BRAINPOOLP512R1 | BRAINPOOLP512R1 |  |
| SB_EC_BRAINPOOLP512T1 | BRAINPOOLP512T1 |  |
| SB_EC_CURVE25519 | CURVE25519 |  |
| SB_EC_CURVE448 | CURVE448 |  |

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertFingerprint Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the fingerprint (a hash imprint) of this certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertFingerprint(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the fingerprint (a hash imprint) of this certificate.

While there is no formal standard defining what a fingerprint is, a SHA1 hash of the certificate's DER-encoded body is typically used.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertFriendlyName Property ([PDFVerifier](#pdfverifier-component) Component)

Contains an associated alias (friendly name) of the certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertFriendlyName(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains an associated alias (friendly name) of the certificate. The friendly name is not a property of a certificate: it is maintained by the certificate media rather than being included in its DER representation. Windows certificate stores are one example of media that does support friendly names.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertHandle(CertIndex int32) (int64, error)
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int64**

# CertHashAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

Provides means to set the hash algorithm to be used in the subsequent operation on the certificate (such as generation or key signing).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertHashAlgorithm(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Provides means to set the hash algorithm to be used in the subsequent operation on the certificate (such as generation or key signing). It is not a property of a certificate; use [CertSigAlgorithm](#certsigalgorithm-property-pdfverifier-component) to find out the hash algorithm that is part of the certificate signature.

|  |  |  |
| --- | --- | --- |
| SB_HASH_ALGORITHM_SHA1 | SHA1 |  |
| SB_HASH_ALGORITHM_SHA224 | SHA224 |  |
| SB_HASH_ALGORITHM_SHA256 | SHA256 |  |
| SB_HASH_ALGORITHM_SHA384 | SHA384 |  |
| SB_HASH_ALGORITHM_SHA512 | SHA512 |  |
| SB_HASH_ALGORITHM_MD2 | MD2 |  |
| SB_HASH_ALGORITHM_MD4 | MD4 |  |
| SB_HASH_ALGORITHM_MD5 | MD5 |  |
| SB_HASH_ALGORITHM_RIPEMD160 | RIPEMD160 |  |
| SB_HASH_ALGORITHM_CRC32 | CRC32 |  |
| SB_HASH_ALGORITHM_SSL3 | SSL3 |  |
| SB_HASH_ALGORITHM_GOST_R3411_1994 | GOST1994 |  |
| SB_HASH_ALGORITHM_WHIRLPOOL | WHIRLPOOL |  |
| SB_HASH_ALGORITHM_POLY1305 | POLY1305 |  |
| SB_HASH_ALGORITHM_SHA3_224 | SHA3_224 |  |
| SB_HASH_ALGORITHM_SHA3_256 | SHA3_256 |  |
| SB_HASH_ALGORITHM_SHA3_384 | SHA3_384 |  |
| SB_HASH_ALGORITHM_SHA3_512 | SHA3_512 |  |
| SB_HASH_ALGORITHM_BLAKE2S_128 | BLAKE2S_128 |  |
| SB_HASH_ALGORITHM_BLAKE2S_160 | BLAKE2S_160 |  |
| SB_HASH_ALGORITHM_BLAKE2S_224 | BLAKE2S_224 |  |
| SB_HASH_ALGORITHM_BLAKE2S_256 | BLAKE2S_256 |  |
| SB_HASH_ALGORITHM_BLAKE2B_160 | BLAKE2B_160 |  |
| SB_HASH_ALGORITHM_BLAKE2B_256 | BLAKE2B_256 |  |
| SB_HASH_ALGORITHM_BLAKE2B_384 | BLAKE2B_384 |  |
| SB_HASH_ALGORITHM_BLAKE2B_512 | BLAKE2B_512 |  |
| SB_HASH_ALGORITHM_SHAKE_128 | SHAKE_128 |  |
| SB_HASH_ALGORITHM_SHAKE_256 | SHAKE_256 |  |
| SB_HASH_ALGORITHM_SHAKE_128_LEN | SHAKE_128_LEN |  |
| SB_HASH_ALGORITHM_SHAKE_256_LEN | SHAKE_256_LEN |  |

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertIssuer Property ([PDFVerifier](#pdfverifier-component) Component)

The common name of the certificate issuer (CA), typically a company name.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertIssuer(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

The common name of the certificate issuer (CA), typically a company name. This is part of a larger set of credentials available via [CertIssuerRDN](#certissuerrdn-property-pdfverifier-component).

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertIssuerRDN Property ([PDFVerifier](#pdfverifier-component) Component)

A list of Property=Value pairs that uniquely identify the certificate issuer.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertIssuerRDN(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

A list of *Property=Value* pairs that uniquely identify the certificate issuer.

Example: */C=US/O=Nationwide CA/CN=Web Certification Authority*

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertKeyAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the public key algorithm of this certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertKeyAlgorithm(CertIndex int32) (string, error)
```

## Default Value

"0"

## Remarks

Specifies the public key algorithm of this certificate.

|  |  |  |
| --- | --- | --- |
| SB_CERT_ALGORITHM_ID_RSA_ENCRYPTION | rsaEncryption |  |
| SB_CERT_ALGORITHM_MD2_RSA_ENCRYPTION | md2withRSAEncryption |  |
| SB_CERT_ALGORITHM_MD5_RSA_ENCRYPTION | md5withRSAEncryption |  |
| SB_CERT_ALGORITHM_SHA1_RSA_ENCRYPTION | sha1withRSAEncryption |  |
| SB_CERT_ALGORITHM_ID_DSA | id-dsa |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA1 | id-dsa-with-sha1 |  |
| SB_CERT_ALGORITHM_DH_PUBLIC | dhpublicnumber |  |
| SB_CERT_ALGORITHM_SHA224_RSA_ENCRYPTION | sha224WithRSAEncryption |  |
| SB_CERT_ALGORITHM_SHA256_RSA_ENCRYPTION | sha256WithRSAEncryption |  |
| SB_CERT_ALGORITHM_SHA384_RSA_ENCRYPTION | sha384WithRSAEncryption |  |
| SB_CERT_ALGORITHM_SHA512_RSA_ENCRYPTION | sha512WithRSAEncryption |  |
| SB_CERT_ALGORITHM_ID_RSAPSS | id-RSASSA-PSS |  |
| SB_CERT_ALGORITHM_ID_RSAOAEP | id-RSAES-OAEP |  |
| SB_CERT_ALGORITHM_RSASIGNATURE_RIPEMD160 | ripemd160withRSA |  |
| SB_CERT_ALGORITHM_ID_ELGAMAL | elGamal |  |
| SB_CERT_ALGORITHM_SHA1_ECDSA | ecdsa-with-SHA1 |  |
| SB_CERT_ALGORITHM_RECOMMENDED_ECDSA | ecdsa-recommended |  |
| SB_CERT_ALGORITHM_SHA224_ECDSA | ecdsa-with-SHA224 |  |
| SB_CERT_ALGORITHM_SHA256_ECDSA | ecdsa-with-SHA256 |  |
| SB_CERT_ALGORITHM_SHA384_ECDSA | ecdsa-with-SHA384 |  |
| SB_CERT_ALGORITHM_SHA512_ECDSA | ecdsa-with-SHA512 |  |
| SB_CERT_ALGORITHM_EC | id-ecPublicKey |  |
| SB_CERT_ALGORITHM_SPECIFIED_ECDSA | ecdsa-specified |  |
| SB_CERT_ALGORITHM_GOST_R3410_1994 | id-GostR3410-94 |  |
| SB_CERT_ALGORITHM_GOST_R3410_2001 | id-GostR3410-2001 |  |
| SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_1994 | id-GostR3411-94-with-GostR3410-94 |  |
| SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_2001 | id-GostR3411-94-with-GostR3410-2001 |  |
| SB_CERT_ALGORITHM_SHA1_ECDSA_PLAIN | ecdsa-plain-SHA1 |  |
| SB_CERT_ALGORITHM_SHA224_ECDSA_PLAIN | ecdsa-plain-SHA224 |  |
| SB_CERT_ALGORITHM_SHA256_ECDSA_PLAIN | ecdsa-plain-SHA256 |  |
| SB_CERT_ALGORITHM_SHA384_ECDSA_PLAIN | ecdsa-plain-SHA384 |  |
| SB_CERT_ALGORITHM_SHA512_ECDSA_PLAIN | ecdsa-plain-SHA512 |  |
| SB_CERT_ALGORITHM_RIPEMD160_ECDSA_PLAIN | ecdsa-plain-RIPEMD160 |  |
| SB_CERT_ALGORITHM_WHIRLPOOL_RSA_ENCRYPTION | whirlpoolWithRSAEncryption |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA224 | id-dsa-with-sha224 |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA256 | id-dsa-with-sha256 |  |
| SB_CERT_ALGORITHM_SHA3_224_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-224 |  |
| SB_CERT_ALGORITHM_SHA3_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-256 |  |
| SB_CERT_ALGORITHM_SHA3_384_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-384 |  |
| SB_CERT_ALGORITHM_SHA3_512_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-512 |  |
| SB_CERT_ALGORITHM_SHA3_224_ECDSA | id-ecdsa-with-sha3-224 |  |
| SB_CERT_ALGORITHM_SHA3_256_ECDSA | id-ecdsa-with-sha3-256 |  |
| SB_CERT_ALGORITHM_SHA3_384_ECDSA | id-ecdsa-with-sha3-384 |  |
| SB_CERT_ALGORITHM_SHA3_512_ECDSA | id-ecdsa-with-sha3-512 |  |
| SB_CERT_ALGORITHM_SHA3_224_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-224 |  |
| SB_CERT_ALGORITHM_SHA3_256_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-256 |  |
| SB_CERT_ALGORITHM_SHA3_384_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-384 |  |
| SB_CERT_ALGORITHM_SHA3_512_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-512 |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA3_224 | id-dsa-with-sha3-224 |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA3_256 | id-dsa-with-sha3-256 |  |
| SB_CERT_ALGORITHM_BLAKE2S_128_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s128 |  |
| SB_CERT_ALGORITHM_BLAKE2S_160_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s160 |  |
| SB_CERT_ALGORITHM_BLAKE2S_224_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s224 |  |
| SB_CERT_ALGORITHM_BLAKE2S_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_160_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b160 |  |
| SB_CERT_ALGORITHM_BLAKE2B_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_384_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b384 |  |
| SB_CERT_ALGORITHM_BLAKE2B_512_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b512 |  |
| SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA | id-ecdsa-with-blake2s128 |  |
| SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA | id-ecdsa-with-blake2s160 |  |
| SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA | id-ecdsa-with-blake2s224 |  |
| SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA | id-ecdsa-with-blake2s256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA | id-ecdsa-with-blake2b160 |  |
| SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA | id-ecdsa-with-blake2b256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA | id-ecdsa-with-blake2b384 |  |
| SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA | id-ecdsa-with-blake2b512 |  |
| SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s128 |  |
| SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s160 |  |
| SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s224 |  |
| SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b160 |  |
| SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b384 |  |
| SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b512 |  |
| SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_224 | id-dsa-with-blake2s224 |  |
| SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_256 | id-dsa-with-blake2s256 |  |
| SB_CERT_ALGORITHM_EDDSA_ED25519 | id-Ed25519 |  |
| SB_CERT_ALGORITHM_EDDSA_ED448 | id-Ed448 |  |
| SB_CERT_ALGORITHM_EDDSA_ED25519_PH | id-Ed25519ph |  |
| SB_CERT_ALGORITHM_EDDSA_ED448_PH | id-Ed448ph |  |
| SB_CERT_ALGORITHM_EDDSA | id-EdDSA |  |
| SB_CERT_ALGORITHM_EDDSA_SIGNATURE | id-EdDSA-sig |  |
| SB_CERT_ALGORITHM_MLDSA_44 | id-ml-dsa-44 |  |
| SB_CERT_ALGORITHM_MLDSA_65 | id-ml-dsa-65 |  |
| SB_CERT_ALGORITHM_MLDSA_87 | id-ml-dsa-87 |  |
| SB_CERT_ALGORITHM_HASH_MLDSA_44_SHA512 | id-hash-ml-dsa-44-with-sha512 |  |
| SB_CERT_ALGORITHM_HASH_MLDSA_65_SHA512 | id-hash-ml-dsa-65-with-sha512 |  |
| SB_CERT_ALGORITHM_HASH_MLDSA_87_SHA512 | id-hash-ml-dsa-87-with-sha512 |  |
| SB_CERT_ALGORITHM_MLKEM_512 | id-ml-kem-512 |  |
| SB_CERT_ALGORITHM_MLKEM_768 | id-ml-kem-768 |  |
| SB_CERT_ALGORITHM_MLKEM_1024 | id-ml-kem-1024 |  |

Use the [CertKeyBits](#certkeybits-property-pdfverifier-component), [CertCurve](#certcurve-property-pdfverifier-component), and [CertPublicKeyBytes](#certpublickeybytes-property-pdfverifier-component) properties to get more details about the key the certificate contains.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertKeyBits Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the length of the public key in bits.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertKeyBits(CertIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Returns the length of the public key in bits.

This value indicates the length of the principal cryptographic parameter of the key, such as the length of the RSA modulus or ECDSA field. The key data returned by the [CertPublicKeyBytes](#certpublickeybytes-property-pdfverifier-component) or [CertPrivateKeyBytes](#certprivatekeybytes-property-pdfverifier-component) property would typically contain auxiliary values, and therefore be longer.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# CertKeyFingerprint Property ([PDFVerifier](#pdfverifier-component) Component)

Returns a SHA1 fingerprint of the public key contained in the certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertKeyFingerprint(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Returns a SHA1 fingerprint of the public key contained in the certificate.

Note that the key fingerprint is different from the certificate fingerprint accessible via the [CertFingerprint](#certfingerprint-property-pdfverifier-component) property. The key fingerprint uniquely identifies the public key, and so can be the same for multiple certificates containing the same key.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertKeyUsage Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates the purposes of the key contained in the certificate, in the form of an OR'ed flag set.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertKeyUsage(CertIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Indicates the purposes of the key contained in the certificate, in the form of an OR'ed flag set.

This value is a bit mask of the following values:

|  |  |  |
| --- | --- | --- |
| ckuUnknown | 0x00000 | Unknown key usage |
| ckuDigitalSignature | 0x00001 | Digital signature |
| ckuNonRepudiation | 0x00002 | Non-repudiation |
| ckuKeyEncipherment | 0x00004 | Key encipherment |
| ckuDataEncipherment | 0x00008 | Data encipherment |
| ckuKeyAgreement | 0x00010 | Key agreement |
| ckuKeyCertSign | 0x00020 | Certificate signing |
| ckuCRLSign | 0x00040 | Revocation signing |
| ckuEncipherOnly | 0x00080 | Encipher only |
| ckuDecipherOnly | 0x00100 | Decipher only |
| ckuServerAuthentication | 0x00200 | Server authentication |
| ckuClientAuthentication | 0x00400 | Client authentication |
| ckuCodeSigning | 0x00800 | Code signing |
| ckuEmailProtection | 0x01000 | Email protection |
| ckuTimeStamping | 0x02000 | Timestamping |
| ckuOCSPSigning | 0x04000 | OCSP signing |
| ckuSmartCardLogon | 0x08000 | Smartcard logon |
| ckuKeyPurposeClientAuth | 0x10000 | Kerberos - client authentication |
| ckuKeyPurposeKDC | 0x20000 | Kerberos - KDC |

Set this property before generating the certificate to propagate the key usage flags to the new certificate.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# CertKeyValid Property ([PDFVerifier](#pdfverifier-component) Component)

Returns True if the certificate's key is cryptographically valid, and False otherwise.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertKeyValid(CertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Returns *True* if the certificate's key is cryptographically valid, and *False* otherwise.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# CertOCSPLocations Property ([PDFVerifier](#pdfverifier-component) Component)

Locations of OCSP services that can be used to check this certificate's validity in real time, as recorded by the CA.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertOCSPLocations(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Locations of OCSP services that can be used to check this certificate's validity in real time, as recorded by the CA.

Set this property before calling the certificate manager's [Generate](#CertificateManager_m_Generate) method to propagate it to the new certificate.

The OCSP locations are provided as a list of CRLF-separated URLs. Note that this differs from the behaviour used in earlier product versions, where the "|" character was used as the location separator.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertOCSPNoCheck Property ([PDFVerifier](#pdfverifier-component) Component)

Accessor to the value of the certificate's ocsp-no-check extension.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertOCSPNoCheck(CertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Accessor to the value of the certificate's ocsp-no-check extension.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# CertOrigin Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the location that the certificate was taken or loaded from.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertOrigin(CertIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Returns the location that the certificate was taken or loaded from.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# CertPolicyIDs Property ([PDFVerifier](#pdfverifier-component) Component)

Contains identifiers (OIDs) of the applicable certificate policies.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertPolicyIDs(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains identifiers (OIDs) of the applicable certificate policies.

The Certificate Policies extension identifies a sequence of policies under which the certificate has been issued, and which regulate its usage.

Set this property when generating a certificate to propagate the policies information to the new certificate.

The policies are provided as a list of CRLF-separated entries. Note that this differs from the behaviour used in earlier product versions, where the "|" character was used as the policy element separator.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertPrivateKeyBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the certificate's private key in DER-encoded format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertPrivateKeyBytes(CertIndex int32) ([]byte, error)
```

## Remarks

Returns the certificate's private key in DER-encoded format. It is normal for this property to be empty if the private key is non-exportable, which, for example, is typical for certificates originating from hardware security devices.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CertPrivateKeyExists Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates whether the certificate has a usable private key associated with it.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertPrivateKeyExists(CertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Indicates whether the certificate has a usable private key associated with it. If it is set to *True*, the certificate can be used for private key operations, such as signing or decryption.

This property is independent from [CertPrivateKeyBytes](#certprivatekeybytes-property-pdfverifier-component), and can be set to *True* even if the former is empty. This would imply that the private key is non-exportable, but still can be used for cryptographic operations.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# CertPrivateKeyExtractable Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates whether the private key is extractable (exportable).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertPrivateKeyExtractable(CertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Indicates whether the private key is extractable (exportable).

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# CertPublicKeyBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the certificate's public key in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertPublicKeyBytes(CertIndex int32) ([]byte, error)
```

## Remarks

Contains the certificate's public key in DER format.

This typically would contain an ASN.1-encoded public key value. The exact format depends on the type of the public key contained in the certificate.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CertQualified Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates whether the certificate is qualified.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertQualified(CertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Indicates whether the certificate is qualified.

This property is set to *True* if the certificate is confirmed by a Trusted List to be qualified.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# CertQualifiedStatements Property ([PDFVerifier](#pdfverifier-component) Component)

Returns a simplified qualified status of the certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertQualifiedStatements(CertIndex int32) (int32, error)
```

## Possible Values

```text
0   // NonQualified1   // QualifiedHardware2   // QualifiedSoftware
```

## Default Value

0

## Remarks

Returns a simplified qualified status of the certificate.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# CertQualifiers Property ([PDFVerifier](#pdfverifier-component) Component)

A list of qualifiers.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertQualifiers(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

A list of qualifiers.

Contains a comma-separated list of qualifier aliases for the certificate, for example *QCP-n-qscd,QCWithSSCD*.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertSelfSigned Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates whether the certificate is self-signed (root) or signed by an external CA.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertSelfSigned(CertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Indicates whether the certificate is self-signed (root) or signed by an external CA.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# CertSerialNumber Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the certificate's serial number.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertSerialNumber(CertIndex int32) ([]byte, error)
```

## Remarks

Returns the certificate's serial number.

The serial number is a binary string that uniquely identifies a certificate among others issued by the same CA. According to the X.509 standard, the (issuer, serial number) pair should be globally unique to facilitate chain building.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CertSigAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates the algorithm that was used by the CA to sign this certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertSigAlgorithm(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Indicates the algorithm that was used by the CA to sign this certificate.

A signature algorithm typically combines hash and public key algorithms together, such as *sha256WithRSAEncryption* or *ecdsa-with-SHA256*.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertSource Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertSource(CertIndex int32) (int32, error)
```

## Possible Values

```text
0   // Unknown1   // Signature2   // Document3   // User4   // Local5   // Online
```

## Default Value

0

## Remarks

Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# CertSubject Property ([PDFVerifier](#pdfverifier-component) Component)

The common name of the certificate holder, typically an individual's name, a URL, an e-mail address, or a company name.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertSubject(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

The common name of the certificate holder, typically an individual's name, a URL, an e-mail address, or a company name. This is part of a larger set of credentials available via [CertSubjectRDN](#certsubjectrdn-property-pdfverifier-component).

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertSubjectAlternativeName Property ([PDFVerifier](#pdfverifier-component) Component)

Returns or sets the value of the Subject Alternative Name extension of the certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertSubjectAlternativeName(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Returns or sets the value of the Subject Alternative Name extension of the certificate.

Subject alternative names are used to provide additional names that are impractical to store in the main [CertSubjectRDN](#certsubjectrdn-property-pdfverifier-component) field. For example, it is often used to store all the domain names that a TLS certificate is authorized to protect.

The alternative names are provided as a list of CRLF-separated entries. Note that this differs from the behaviour used in earlier product versions, where the "|" character was used as the element separator.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertSubjectKeyID Property ([PDFVerifier](#pdfverifier-component) Component)

Contains a unique identifier of the certificate's cryptographic key.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertSubjectKeyID(CertIndex int32) ([]byte, error)
```

## Remarks

Contains a unique identifier of the certificate's cryptographic key.

Subject Key Identifier is a certificate extension which allows a specific public key to be associated with a certificate holder. Typically, subject key identifiers of CA certificates are recorded as respective CA key identifiers in the subordinate certificates that they issue, which facilitates chain building.

The [CertSubjectKeyID](#certsubjectkeyid-property-pdfverifier-component) and [CertCAKeyID](#certcakeyid-property-pdfverifier-component) properties of self-signed certificates typically contain identical values, as in that specific case, the issuer and the subject are the same entity.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CertSubjectRDN Property ([PDFVerifier](#pdfverifier-component) Component)

A list of Property=Value pairs that uniquely identify the certificate holder (subject).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertSubjectRDN(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

A list of *Property=Value* pairs that uniquely identify the certificate holder (subject).

Depending on the purpose of the certificate and the policies of the CA that issued it, the values included in the subject record may differ drastically and contain business or personal names, web URLs, email addresses, and other data.

Example: */C=US/O=Oranges and Apples, Inc./OU=Accounts Receivable/1.2.3.4.5=Value with unknown OID/CN=Margaret Watkins*.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertValid Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates whether or not the signature over the certificate or the request is valid and matches the public key contained in the CA certificate/request.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertValid(CertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Indicates whether or not the signature over the certificate or the request is valid and matches the public key contained in the CA certificate/request.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# CertValidFrom Property ([PDFVerifier](#pdfverifier-component) Component)

The time point at which the certificate becomes valid, in UTC.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertValidFrom(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

The time point at which the certificate becomes valid, in UTC.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CertValidTo Property ([PDFVerifier](#pdfverifier-component) Component)

The time point at which the certificate expires, in UTC.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CertValidTo(CertIndex int32) (string, error)
```

## Default Value

""

## Remarks

The time point at which the certificate expires, in UTC.

The *CertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CertCount](#certcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CheckTrustedLists Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies whether the class should attempt to validate chain trust via a known Trusted List.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CheckTrustedLists() (bool, error)func (obj *PDFVerifier) SetCheckTrustedLists(value bool) error
```

## Default Value

false

## Remarks

Set this property to true to enable the component to validate chain trust against an internal list of known Trusted Lists (such as EUTL).

## Data Type

**bool**

# CRLCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the CRL arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLCount() (int32, error)
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [CRLBytes](#crlbytes-property-pdfverifier-component)
- [CRLCAKeyID](#crlcakeyid-property-pdfverifier-component)
- [CRLEntryCount](#crlentrycount-property-pdfverifier-component)
- [CRLHandle](#crlhandle-property-pdfverifier-component)
- [CRLIssuer](#crlissuer-property-pdfverifier-component)
- [CRLIssuerRDN](#crlissuerrdn-property-pdfverifier-component)
- [CRLLocation](#crllocation-property-pdfverifier-component)
- [CRLNextUpdate](#crlnextupdate-property-pdfverifier-component)
- [CRLSigAlgorithm](#crlsigalgorithm-property-pdfverifier-component)
- [CRLSource](#crlsource-property-pdfverifier-component)
- [CRLTBS](#crltbs-property-pdfverifier-component)
- [CRLThisUpdate](#crlthisupdate-property-pdfverifier-component)

The array indices start at *0* and end at *CRLCount - 1*.

This property is read-only.

## Data Type

**int32**

# CRLBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw CRL data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLBytes(CRLIndex int32) ([]byte, error)
```

## Remarks

Returns the raw CRL data in DER format.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CRLCAKeyID Property ([PDFVerifier](#pdfverifier-component) Component)

A unique identifier (fingerprint) of the CA certificate's private key, if present in the CRL.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLCAKeyID(CRLIndex int32) ([]byte, error)
```

## Remarks

A unique identifier (fingerprint) of the CA certificate's private key, if present in the CRL.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CRLEntryCount Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the number of certificate status entries in the CRL.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLEntryCount(CRLIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Returns the number of certificate status entries in the CRL.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# CRLHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLHandle(CRLIndex int32) (int64, error)
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int64**

# CRLIssuer Property ([PDFVerifier](#pdfverifier-component) Component)

The common name of the CRL issuer (CA), typically a company name.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLIssuer(CRLIndex int32) (string, error)
```

## Default Value

""

## Remarks

The common name of the CRL issuer (CA), typically a company name.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CRLIssuerRDN Property ([PDFVerifier](#pdfverifier-component) Component)

A collection of information, in the form of [OID, Value] pairs, uniquely identifying the CRL issuer.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLIssuerRDN(CRLIndex int32) (string, error)
```

## Default Value

""

## Remarks

A collection of information, in the form of [OID, Value] pairs, uniquely identifying the CRL issuer.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CRLLocation Property ([PDFVerifier](#pdfverifier-component) Component)

The URL that the CRL was downloaded from.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLLocation(CRLIndex int32) (string, error)
```

## Default Value

""

## Remarks

The URL that the CRL was downloaded from.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CRLNextUpdate Property ([PDFVerifier](#pdfverifier-component) Component)

The planned time and date of the next version of this CRL to be published.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLNextUpdate(CRLIndex int32) (string, error)
```

## Default Value

""

## Remarks

The planned time and date of the next version of this CRL to be published.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CRLSigAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

The public key algorithm that was used by the CA to sign this CRL.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLSigAlgorithm(CRLIndex int32) (string, error)
```

## Default Value

"0"

## Remarks

The public key algorithm that was used by the CA to sign this CRL.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# CRLSource Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLSource(CRLIndex int32) (int32, error)
```

## Possible Values

```text
0   // Unknown1   // Signature2   // Document3   // User4   // Local5   // Online
```

## Default Value

0

## Remarks

Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# CRLTBS Property ([PDFVerifier](#pdfverifier-component) Component)

The to-be-signed part of the CRL (the CRL without the signature part).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLTBS(CRLIndex int32) ([]byte, error)
```

## Remarks

The to-be-signed part of the CRL (the CRL without the signature part).

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# CRLThisUpdate Property ([PDFVerifier](#pdfverifier-component) Component)

The date and time at which this version of the CRL was published.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) CRLThisUpdate(CRLIndex int32) (string, error)
```

## Default Value

""

## Remarks

The date and time at which this version of the CRL was published.

The *CRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [CRLCount](#crlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# DecryptionCertificateBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw certificate data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) DecryptionCertificateBytes() ([]byte, error)
```

## Remarks

Returns the raw certificate data in DER format.

This property is read-only.

## Data Type

**[]byte**

# DecryptionCertificateHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) DecryptionCertificateHandle() (int64, error)func (obj *PDFVerifier) SetDecryptionCertificateHandle(value int64) error
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

## Data Type

**int64**

# DocumentInfoEncryptionAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

The symmetric algorithm used to encrypt the document.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) DocumentInfoEncryptionAlgorithm() (string, error)
```

## Default Value

""

## Remarks

The symmetric algorithm used to encrypt the document.

This property contains the encryption algorithm that was used to encrypt the PDF document.

Supported values:

|  |  |  |
| --- | --- | --- |
| SB_SYMMETRIC_ALGORITHM_RC4 | RC4 |  |
| SB_SYMMETRIC_ALGORITHM_AES128 | AES128 |  |
| SB_SYMMETRIC_ALGORITHM_AES256 | AES256 |  |

This property is read-only.

## Data Type

**string**

# DocumentInfoEncryptionType Property ([PDFVerifier](#pdfverifier-component) Component)

The document encryption type.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) DocumentInfoEncryptionType() (int32, error)
```

## Possible Values

```text
0   // None1   // Password2   // Certificate
```

## Default Value

1

## Remarks

The document encryption type.

This property indicates the kind of encryption that was used to encrypt the PDF document.

Supported values:

|  |  |  |
| --- | --- | --- |
| petPassword | 1 | The document is encrypted with a password. |
| petCertificate | 2 | The document is encrypted with a certificate (or many certificates). |

This property is read-only.

## Data Type

**int32**

# DocumentInfoMetadataEncrypted Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates if the document metadata is encrypted.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) DocumentInfoMetadataEncrypted() (bool, error)
```

## Default Value

true

## Remarks

Indicates if the document metadata is encrypted.

Use this property to check if the document metadata is encrypted.

Metadata contains additional information about the document such as its name and author.

This property is read-only.

## Data Type

**bool**

# DocumentInfoPermissions Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the document permissions associated with the encryption.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) DocumentInfoPermissions() (int32, error)
```

## Default Value

0

## Remarks

Contains the document permissions associated with the encryption.

Use this property to check the permissions protected by this encryption. The PDF specification expects applications to comply with these permissions when handling encrypted documents. Contains a bit mask of the following flags:

|  |  |  |
| --- | --- | --- |
| pepAnnotations | 0x0001 | Annotating is allowed |
| pepAssemble | 0x0002 | Assembling a new document on the basis of the processed one is allowed |
| pepExtract | 0x0004 | Extraction/copying of the pictures and text from the document is allowed |
| pepExtractAcc | 0x0008 | Content extraction is allowed for accessibility purposes only |
| pepFillInForms | 0x0010 | Filling forms in is allowed |
| pepHighQualityPrint | 0x0020 | High quality printing is allowed |
| pepLowQualityPrint | 0x0040 | Low quality printing is allowed |
| pepModify | 0x0080 | Modifications are allowed |

This property is read-only.

## Data Type

**int32**

# FIPSMode Property ([PDFVerifier](#pdfverifier-component) Component)

Reserved.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) FIPSMode() (bool, error)func (obj *PDFVerifier) SetFIPSMode(value bool) error
```

## Default Value

false

## Remarks

This property is reserved for future use.

## Data Type

**bool**

# IgnoreChainValidationErrors Property ([PDFVerifier](#pdfverifier-component) Component)

Makes the class tolerant to chain validation errors.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) IgnoreChainValidationErrors() (bool, error)func (obj *PDFVerifier) SetIgnoreChainValidationErrors(value bool) error
```

## Default Value

false

## Remarks

If this property is set to True, any errors emerging during certificate chain validation will be ignored. This setting may be handy if the purpose of validation is the creation of an LTV signature, and the validation is performed in an environment that doesn't trust the signer's certificate chain.

## Data Type

**bool**

# InputBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Use this property to pass the input to class in byte array form.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) InputBytes() ([]byte, error)func (obj *PDFVerifier) SetInputBytes(value []byte) error
```

## Remarks

Assign a byte array containing the data to be processed to this property.

## Data Type

**[]byte**

# InputFile Property ([PDFVerifier](#pdfverifier-component) Component)

A path to the signed PDF file.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) InputFile() (string, error)func (obj *PDFVerifier) SetInputFile(value string) error
```

## Default Value

""

## Remarks

Assign the path to the PDF file to be verified to this property.

## Data Type

**string**

# KnownCertCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the KnownCert arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownCertCount() (int32, error)func (obj *PDFVerifier) SetKnownCertCount(value int32) error
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [KnownCertBytes](#knowncertbytes-property-pdfverifier-component)
- [KnownCertHandle](#knowncerthandle-property-pdfverifier-component)

The array indices start at *0* and end at *KnownCertCount - 1*.

## Data Type

**int32**

# KnownCertBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw certificate data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownCertBytes(KnownCertIndex int32) ([]byte, error)
```

## Remarks

Returns the raw certificate data in DER format.

The *KnownCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [KnownCertCount](#knowncertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# KnownCertHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownCertHandle(KnownCertIndex int32) (int64, error)func (obj *PDFVerifier) SetKnownCertHandle(KnownCertIndex int32, value int64) error
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *KnownCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [KnownCertCount](#knowncertcount-property-pdfverifier-component) property.

## Data Type

**int64**

# KnownCRLCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the KnownCRL arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownCRLCount() (int32, error)func (obj *PDFVerifier) SetKnownCRLCount(value int32) error
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [KnownCRLBytes](#knowncrlbytes-property-pdfverifier-component)
- [KnownCRLHandle](#knowncrlhandle-property-pdfverifier-component)

The array indices start at *0* and end at *KnownCRLCount - 1*.

## Data Type

**int32**

# KnownCRLBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw CRL data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownCRLBytes(KnownCRLIndex int32) ([]byte, error)
```

## Remarks

Returns the raw CRL data in DER format.

The *KnownCRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [KnownCRLCount](#knowncrlcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# KnownCRLHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownCRLHandle(KnownCRLIndex int32) (int64, error)func (obj *PDFVerifier) SetKnownCRLHandle(KnownCRLIndex int32, value int64) error
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *KnownCRLIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [KnownCRLCount](#knowncrlcount-property-pdfverifier-component) property.

## Data Type

**int64**

# KnownOCSPCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the KnownOCSP arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownOCSPCount() (int32, error)func (obj *PDFVerifier) SetKnownOCSPCount(value int32) error
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [KnownOCSPBytes](#knownocspbytes-property-pdfverifier-component)
- [KnownOCSPHandle](#knownocsphandle-property-pdfverifier-component)

The array indices start at *0* and end at *KnownOCSPCount - 1*.

## Data Type

**int32**

# KnownOCSPBytes Property ([PDFVerifier](#pdfverifier-component) Component)

A buffer containing the raw OCSP response data.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownOCSPBytes(KnownOCSPIndex int32) ([]byte, error)
```

## Remarks

A buffer containing the raw OCSP response data.

The *KnownOCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [KnownOCSPCount](#knownocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# KnownOCSPHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) KnownOCSPHandle(KnownOCSPIndex int32) (int64, error)func (obj *PDFVerifier) SetKnownOCSPHandle(KnownOCSPIndex int32, value int64) error
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *KnownOCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [KnownOCSPCount](#knownocspcount-property-pdfverifier-component) property.

## Data Type

**int64**

# OCSPCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the OCSP arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPCount() (int32, error)
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [OCSPBytes](#ocspbytes-property-pdfverifier-component)
- [OCSPEntryCount](#ocspentrycount-property-pdfverifier-component)
- [OCSPHandle](#ocsphandle-property-pdfverifier-component)
- [OCSPIssuer](#ocspissuer-property-pdfverifier-component)
- [OCSPIssuerRDN](#ocspissuerrdn-property-pdfverifier-component)
- [OCSPLocation](#ocsplocation-property-pdfverifier-component)
- [OCSPProducedAt](#ocspproducedat-property-pdfverifier-component)
- [OCSPSigAlgorithm](#ocspsigalgorithm-property-pdfverifier-component)
- [OCSPSource](#ocspsource-property-pdfverifier-component)

The array indices start at *0* and end at *OCSPCount - 1*.

This property is read-only.

## Data Type

**int32**

# OCSPBytes Property ([PDFVerifier](#pdfverifier-component) Component)

A buffer containing the raw OCSP response data.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPBytes(OCSPIndex int32) ([]byte, error)
```

## Remarks

A buffer containing the raw OCSP response data.

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# OCSPEntryCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of SingleResponse elements contained in this OCSP response.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPEntryCount(OCSPIndex int32) (int32, error)
```

## Default Value

0

## Remarks

The number of SingleResponse elements contained in this OCSP response. Each SingleResponse element corresponds to a certificate status.

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# OCSPHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPHandle(OCSPIndex int32) (int64, error)
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int64**

# OCSPIssuer Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates the issuer of this response (a CA or its authorized representative).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPIssuer(OCSPIndex int32) (string, error)
```

## Default Value

""

## Remarks

Indicates the issuer of this response (a CA or its authorized representative).

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# OCSPIssuerRDN Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates the RDN of the issuer of this response (a CA or its authorized representative).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPIssuerRDN(OCSPIndex int32) (string, error)
```

## Default Value

""

## Remarks

Indicates the RDN of the issuer of this response (a CA or its authorized representative).

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# OCSPLocation Property ([PDFVerifier](#pdfverifier-component) Component)

The location of the OCSP responder.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPLocation(OCSPIndex int32) (string, error)
```

## Default Value

""

## Remarks

The location of the OCSP responder.

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# OCSPProducedAt Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the time when the response was produced, in UTC.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPProducedAt(OCSPIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the time when the response was produced, in UTC.

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# OCSPSigAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

The public key algorithm that was used by the CA to sign this OCSP response.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPSigAlgorithm(OCSPIndex int32) (string, error)
```

## Default Value

"0"

## Remarks

The public key algorithm that was used by the CA to sign this OCSP response.

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# OCSPSource Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OCSPSource(OCSPIndex int32) (int32, error)
```

## Possible Values

```text
0   // Unknown1   // Signature2   // Document3   // User4   // Local5   // Online
```

## Default Value

0

## Remarks

Returns the source (location or disposition) of a cryptographic primitive entity, such as a certificate, CRL, or OCSP response.

The *OCSPIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [OCSPCount](#ocspcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# OfflineMode Property ([PDFVerifier](#pdfverifier-component) Component)

Switches the class to offline mode.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OfflineMode() (bool, error)func (obj *PDFVerifier) SetOfflineMode(value bool) error
```

## Default Value

false

## Remarks

When working in offline mode, the struct restricts itself from using any online revocation information sources, such as CRL or OCSP responders.

Offline mode may be useful if there is a need to verify the completeness of the validation information included within the signature or provided via KnownCertificates, KnownCRLs, and other related properties.

## Data Type

**bool**

# OutputBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Use this property to read the output the class object has produced.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OutputBytes() ([]byte, error)
```

## Remarks

Read the contents of this property after the operation has completed to read the produced output. This property will only be set if the [OutputFile](#outputfile-property-pdfverifier-component) and OutputStream properties had not been assigned.

This property is read-only.

## Data Type

**[]byte**

# OutputFile Property ([PDFVerifier](#pdfverifier-component) Component)

The file to save the signed or updated document to.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) OutputFile() (string, error)func (obj *PDFVerifier) SetOutputFile(value string) error
```

## Default Value

""

## Remarks

Use this property to provide a path where the resulting PDF document should be saved to.

## Data Type

**string**

# PageCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the Page arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageCount() (int32, error)
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [PageCropLLX](#pagecropllx-property-pdfverifier-component)
- [PageCropLLY](#pagecroplly-property-pdfverifier-component)
- [PageCropURX](#pagecropurx-property-pdfverifier-component)
- [PageCropURY](#pagecropury-property-pdfverifier-component)
- [PageHeight](#pageheight-property-pdfverifier-component)
- [PageMediaLLX](#pagemediallx-property-pdfverifier-component)
- [PageMediaLLY](#pagemedially-property-pdfverifier-component)
- [PageMediaURX](#pagemediaurx-property-pdfverifier-component)
- [PageMediaURY](#pagemediaury-property-pdfverifier-component)
- [PageRotate](#pagerotate-property-pdfverifier-component)
- [PageWidth](#pagewidth-property-pdfverifier-component)

The array indices start at *0* and end at *PageCount - 1*.

This property is read-only.

## Data Type

**int32**

# PageCropLLX Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the lower-left X coordinate of the page crop area.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageCropLLX(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the lower-left X coordinate of the page crop area.

Specifies the lower-left X coordinate of the page crop area rectangle.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageCropLLY Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the lower-left Y coordinate of the page crop area.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageCropLLY(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the lower-left Y coordinate of the page crop area.

Specifies the lower-left Y coordinate of the page crop area rectangle.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageCropURX Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the upper-right X coordinate of the page crop area.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageCropURX(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the upper-right X coordinate of the page crop area.

Specifies the upper-right X coordinate of the page crop area rectangle.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageCropURY Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the upper-right Y coordinate of the page crop area.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageCropURY(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the upper-right Y coordinate of the page crop area.

Specifies the upper-right Y coordinate of the page crop area rectangle.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageHeight Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the height of the page.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageHeight(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the height of the page.

Returns the height of the page.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageMediaLLX Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the lower-left X coordinate of the page media area.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageMediaLLX(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the lower-left X coordinate of the page media area.

Specifies the lower-left X coordinate of the page media area rectangle.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageMediaLLY Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the lower-left Y coordinate of the page media area.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageMediaLLY(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the lower-left Y coordinate of the page media area.

Specifies the lower-left Y coordinate of the page media area rectangle.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageMediaURX Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the upper-right X coordinate of the page media area.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageMediaURX(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the upper-right X coordinate of the page media area.

Specifies the upper-right X coordinate of the page media area rectangle.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageMediaURY Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the upper-right Y coordinate of the page media area.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageMediaURY(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the upper-right Y coordinate of the page media area.

Specifies the upper-right Y coordinate of the page media area rectangle.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageRotate Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the rotation angle of the page in degrees.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageRotate(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the rotation angle of the page in degrees. Values of 0, 90, 180, and 270 are allowed.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# PageWidth Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the width of the page.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) PageWidth(PageIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the width of the page.

Returns the width of the page.

The *PageIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [PageCount](#pagecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# Password Property ([PDFVerifier](#pdfverifier-component) Component)

The decryption password.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Password() (string, error)func (obj *PDFVerifier) SetPassword(value string) error
```

## Default Value

""

## Remarks

Use this property to provide the decryption password.

## Data Type

**string**

# Profile Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies a pre-defined profile to apply when creating the signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Profile() (string, error)func (obj *PDFVerifier) SetProfile(value string) error
```

## Default Value

""

## Remarks

Advanced signatures come in many variants, which are often defined by parties that needs to process them or by local standards. SecureBlackbox profiles are sets of pre-defined configurations which correspond to particular signature variants. By specifying a profile, you are pre-configuring the component to make it produce the signature that matches the configuration corresponding to that profile.

## Data Type

**string**

# ProxyAddress Property ([PDFVerifier](#pdfverifier-component) Component)

The IP address of the proxy server.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyAddress() (string, error)func (obj *PDFVerifier) SetProxyAddress(value string) error
```

## Default Value

""

## Remarks

The IP address of the proxy server.

## Data Type

**string**

# ProxyAuthentication Property ([PDFVerifier](#pdfverifier-component) Component)

The authentication type used by the proxy server.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyAuthentication() (int32, error)func (obj *PDFVerifier) SetProxyAuthentication(value int32) error
```

## Possible Values

```text
0   // NoAuthentication1   // Basic2   // Digest3   // NTLM
```

## Default Value

0

## Remarks

The authentication type used by the proxy server.

|  |  |
| --- | --- |
| patNoAuthentication | 0 |
| patBasic | 1 |
| patDigest | 2 |
| patNTLM | 3 |

## Data Type

**int32**

# ProxyPassword Property ([PDFVerifier](#pdfverifier-component) Component)

The password to authenticate to the proxy server.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyPassword() (string, error)func (obj *PDFVerifier) SetProxyPassword(value string) error
```

## Default Value

""

## Remarks

The password to authenticate to the proxy server.

## Data Type

**string**

# ProxyPort Property ([PDFVerifier](#pdfverifier-component) Component)

The port on the proxy server to connect to.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyPort() (int32, error)func (obj *PDFVerifier) SetProxyPort(value int32) error
```

## Default Value

0

## Remarks

The port on the proxy server to connect to.

## Data Type

**int32**

# ProxyType Property ([PDFVerifier](#pdfverifier-component) Component)

The type of the proxy server.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyType() (int32, error)func (obj *PDFVerifier) SetProxyType(value int32) error
```

## Possible Values

```text
0   // None1   // Socks42   // Socks53   // WebTunnel4   // HTTP
```

## Default Value

0

## Remarks

The type of the proxy server.

|  |  |
| --- | --- |
| cptNone | 0 |
| cptSocks4 | 1 |
| cptSocks5 | 2 |
| cptWebTunnel | 3 |
| cptHTTP | 4 |

## Data Type

**int32**

# ProxyRequestHeaders Property ([PDFVerifier](#pdfverifier-component) Component)

Contains HTTP request headers for WebTunnel and HTTP proxy.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyRequestHeaders() (string, error)func (obj *PDFVerifier) SetProxyRequestHeaders(value string) error
```

## Default Value

""

## Remarks

Contains HTTP request headers for WebTunnel and HTTP proxy.

## Data Type

**string**

# ProxyResponseBody Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the HTTP or HTTPS (WebTunnel) proxy response body.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyResponseBody() (string, error)func (obj *PDFVerifier) SetProxyResponseBody(value string) error
```

## Default Value

""

## Remarks

Contains the HTTP or HTTPS (WebTunnel) proxy response body.

## Data Type

**string**

# ProxyResponseHeaders Property ([PDFVerifier](#pdfverifier-component) Component)

Contains response headers received from an HTTP or HTTPS (WebTunnel) proxy server.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyResponseHeaders() (string, error)func (obj *PDFVerifier) SetProxyResponseHeaders(value string) error
```

## Default Value

""

## Remarks

Contains response headers received from an HTTP or HTTPS (WebTunnel) proxy server.

## Data Type

**string**

# ProxyUseIPv6 Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies whether IPv6 should be used when connecting through the proxy.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyUseIPv6() (bool, error)func (obj *PDFVerifier) SetProxyUseIPv6(value bool) error
```

## Default Value

false

## Remarks

Specifies whether IPv6 should be used when connecting through the proxy.

## Data Type

**bool**

# ProxyUsername Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the username credential for proxy authentication.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ProxyUsername() (string, error)func (obj *PDFVerifier) SetProxyUsername(value string) error
```

## Default Value

""

## Remarks

Specifies the username credential for proxy authentication.

## Data Type

**string**

# RevocationCheck Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the kind(s) of revocation check to perform for all chain certificates.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) RevocationCheck() (int32, error)func (obj *PDFVerifier) SetRevocationCheck(value int32) error
```

## Possible Values

```text
0   // None1   // Auto2   // AllCRL3   // AllOCSP4   // AllCRLAndOCSP5   // AnyCRL6   // AnyOCSP7   // AnyCRLOrOCSP8   // AnyOCSPOrCRL
```

## Default Value

1

## Remarks

Revocation checking is necessary to ensure the integrity of the chain and obtain up-to-date certificate validity and trustworthiness information.

Certificate Revocation Lists (CRLs) and Online Certificate Status Protocol (OCSP) responses serve the same purpose of ensuring that the certificate had not been revoked by the Certificate Authority (CA) at the time of use. Depending on your circumstances and security policy requirements, you may want to use either one or both of the revocation information source types.

|  |  |  |
| --- | --- | --- |
| crcNone | 0 | No revocation checking. |
| crcAuto | 1 | Automatic mode selection. Currently this maps to crcAnyOCSPOrCRL, but it may change in the future. |
| crcAllCRL | 2 | All provided CRL endpoints will be checked, and all checks must succeed. |
| crcAllOCSP | 3 | All provided OCSP endpoints will be checked, and all checks must succeed. |
| crcAllCRLAndOCSP | 4 | All provided CRL and OCSP endpoints will be checked, and all checks must succeed. |
| crcAnyCRL | 5 | All provided CRL endpoints will be checked, and at least one check must succeed. |
| crcAnyOCSP | 6 | All provided OCSP endpoints will be checked, and at least one check must succeed. |
| crcAnyCRLOrOCSP | 7 | All provided CRL and OCSP endpoints will be checked, and at least one check must succeed. CRL endpoints are checked first. |
| crcAnyOCSPOrCRL | 8 | All provided CRL and OCSP endpoints will be checked, and at least one check must succeed. OCSP endpoints are checked first. |

This setting controls the way the revocation checks are performed for every certificate in the chain. Typically certificates come with two types of revocation information sources: CRL (certificate revocation lists) and OCSP responders. CRLs are static objects periodically published by the CA at some online location. OCSP responders are active online services maintained by the CA that can provide up-to-date information on certificate statuses in near real time.

There are some conceptual differences between the two. CRLs are normally larger in size. Their use involves some latency because there is normally some delay between the time when a certificate was revoked and the time the subsequent CRL mentioning that is published. The benefits of CRL is that the same object can provide statuses for all certificates issued by a particular CA, and that the whole technology is much simpler than OCSP (and thus is supported by more CAs).

This setting lets you adjust the validation course by including or excluding certain types of revocation sources from the validation process. The crcAnyOCSPOrCRL setting (give preference to the faster OCSP route and only demand one source to succeed) is a good choice for most typical validation environments. The "crcAll*" modes are much stricter, and may be used in scenarios where bulletproof validity information is essential.

NOTE: If no CRL or OCSP endpoints are provided by the CA, the revocation check will be considered successful. This is because the CA chose not to supply revocation information for its certificates, meaning they are considered irrevocable.

NOTE: Within each of the above settings, if any retrieved CRL or OCSP response indicates that the certificate has been revoked, the revocation check fails.

## Data Type

**int32**

# SignatureCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the Signature arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureCount() (int32, error)
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [SignatureAllowedChanges](#signatureallowedchanges-property-pdfverifier-component)
- [SignatureAuthorName](#signatureauthorname-property-pdfverifier-component)
- [SignatureBytes](#signaturebytes-property-pdfverifier-component)
- [SignatureCertification](#signaturecertification-property-pdfverifier-component)
- [SignatureChainValidationDetails](#signaturechainvalidationdetails-property-pdfverifier-component)
- [SignatureChainValidationResult](#signaturechainvalidationresult-property-pdfverifier-component)
- [SignatureClaimedSigningTime](#signatureclaimedsigningtime-property-pdfverifier-component)
- [SignatureCompatibilityErrors](#signaturecompatibilityerrors-property-pdfverifier-component)
- [SignatureContactInfo](#signaturecontactinfo-property-pdfverifier-component)
- [SignatureContainsLongTermInfo](#signaturecontainslongterminfo-property-pdfverifier-component)
- [SignatureCoverageEndsAt](#signaturecoverageendsat-property-pdfverifier-component)
- [SignatureCustomData](#signaturecustomdata-property-pdfverifier-component)
- [SignatureEmptyField](#signatureemptyfield-property-pdfverifier-component)
- [SignatureEntityLabel](#signatureentitylabel-property-pdfverifier-component)
- [SignatureFilterName](#signaturefiltername-property-pdfverifier-component)
- [SignatureFullSignatureName](#signaturefullsignaturename-property-pdfverifier-component)
- [SignatureHandle](#signaturehandle-property-pdfverifier-component)
- [SignatureHashAlgorithm](#signaturehashalgorithm-property-pdfverifier-component)
- [SignatureHeight](#signatureheight-property-pdfverifier-component)
- [SignatureIssuerRDN](#signatureissuerrdn-property-pdfverifier-component)
- [SignatureLevel](#signaturelevel-property-pdfverifier-component)
- [SignatureLocation](#signaturelocation-property-pdfverifier-component)
- [SignatureName](#signaturename-property-pdfverifier-component)
- [SignatureOffsetX](#signatureoffsetx-property-pdfverifier-component)
- [SignatureOffsetY](#signatureoffsety-property-pdfverifier-component)
- [SignaturePage](#signaturepage-property-pdfverifier-component)
- [SignaturePolicyHash](#signaturepolicyhash-property-pdfverifier-component)
- [SignaturePolicyHashAlgorithm](#signaturepolicyhashalgorithm-property-pdfverifier-component)
- [SignaturePolicyID](#signaturepolicyid-property-pdfverifier-component)
- [SignaturePolicyURI](#signaturepolicyuri-property-pdfverifier-component)
- [SignatureReason](#signaturereason-property-pdfverifier-component)
- [SignatureSerialNumber](#signatureserialnumber-property-pdfverifier-component)
- [SignatureSubjectKeyID](#signaturesubjectkeyid-property-pdfverifier-component)
- [SignatureSubjectRDN](#signaturesubjectrdn-property-pdfverifier-component)
- [SignatureTimestamped](#signaturetimestamped-property-pdfverifier-component)
- [SignatureType](#signaturetype-property-pdfverifier-component)
- [SignatureValidatedSigningTime](#signaturevalidatedsigningtime-property-pdfverifier-component)
- [SignatureValidationLog](#signaturevalidationlog-property-pdfverifier-component)
- [SignatureValidationResult](#signaturevalidationresult-property-pdfverifier-component)
- [SignatureWidth](#signaturewidth-property-pdfverifier-component)

The array indices start at *0* and end at *SignatureCount - 1*.

This property is read-only.

## Data Type

**int32**

# SignatureAllowedChanges Property ([PDFVerifier](#pdfverifier-component) Component)

The changes to the document allowed by the signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureAllowedChanges(SignatureIndex int32) (int32, error)
```

## Possible Values

```text
0   // None1   // FillInForms2   // Comment3   // All
```

## Default Value

0

## Remarks

The changes to the document allowed by the signature.

This property is only applicable to MDP/certification signatures and has no effect for any other kinds of signatures (regular or document timestamps).

|  |  |  |
| --- | --- | --- |
| psacNone | 0 | No changes are allowed by the signature |
| psacFillInForms | 1 | Only form fill-in is allowed |
| psacComment | 2 | Commenting is allowed |
| psacAll | 3 | Form fill-in and commenting are allowed |

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureAuthorName Property ([PDFVerifier](#pdfverifier-component) Component)

A human-readable signer name.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureAuthorName(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

A human-readable signer name. This is a PDF document property.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureCertification Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies whether this is a Certification (MDP) signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureCertification(SignatureIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Specifies whether this is a Certification (MDP) signature.

Certification signatures certify the current revision of the document and define which changes, if any, may be made afterwards without invalidating that certification. Use [SignatureAllowedChanges](#signatureallowedchanges-property-pdfverifier-component) to specify the permitted changes.

A PDF document normally contains at most one certification signature, and it is the first signature in the document. This setting does not apply to document timestamps.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# SignatureChainValidationDetails Property ([PDFVerifier](#pdfverifier-component) Component)

The details of a certificate chain validation outcome.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureChainValidationDetails(SignatureIndex int32) (int32, error)
```

## Default Value

0

## Remarks

The details of a certificate chain validation outcome. They may often suggest the reasons that contributed to the overall validation result.

Returns a bit mask of the following options:

|  |  |  |
| --- | --- | --- |
| cvrBadData | 0x0001 | One or more certificates in the validation path are malformed |
| cvrRevoked | 0x0002 | One or more certificates are revoked |
| cvrNotYetValid | 0x0004 | One or more certificates are not yet valid |
| cvrExpired | 0x0008 | One or more certificates are expired |
| cvrInvalidSignature | 0x0010 | A certificate contains a non-valid digital signature |
| cvrUnknownCA | 0x0020 | A CA certificate for one or more certificates has not been found (chain incomplete) |
| cvrCAUnauthorized | 0x0040 | One of the CA certificates are not authorized to act as CA |
| cvrCRLNotVerified | 0x0080 | One or more CRLs could not be verified |
| cvrOCSPNotVerified | 0x0100 | One or more OCSP responses could not be verified |
| cvrIdentityMismatch | 0x0200 | The identity protected by the certificate (a TLS endpoint or an e-mail addressee) does not match what is recorded in the certificate |
| cvrNoKeyUsage | 0x0400 | A mandatory key usage is not enabled in one of the chain certificates |
| cvrBlocked | 0x0800 | One or more certificates are blocked |
| cvrFailure | 0x1000 | General validation failure |
| cvrChainLoop | 0x2000 | Chain loop: one of the CA certificates recursively signs itself |
| cvrWeakAlgorithm | 0x4000 | A weak algorithm is used in one of certificates or revocation elements |
| cvrUserEnforced | 0x8000 | The chain was considered invalid following intervention from a user code |

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureChainValidationResult Property ([PDFVerifier](#pdfverifier-component) Component)

The outcome of a certificate chain validation routine.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureChainValidationResult(SignatureIndex int32) (int32, error)
```

## Possible Values

```text
0   // Valid1   // ValidButUntrusted2   // Invalid3   // CantBeEstablished
```

## Default Value

0

## Remarks

The outcome of a certificate chain validation routine.

Available options:

|  |  |  |
| --- | --- | --- |
| cvtValid | 0 | The chain is valid |
| cvtValidButUntrusted | 1 | The chain is valid, but the root certificate is not trusted |
| cvtInvalid | 2 | The chain is not valid (some of certificates are revoked, expired, or contain an invalid signature) |
| cvtCantBeEstablished | 3 | The validity of the chain cannot be established because of missing or unavailable validation information (certificates, CRLs, or OCSP responses) |

Use the ValidationLog property to access the detailed validation log.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureClaimedSigningTime Property ([PDFVerifier](#pdfverifier-component) Component)

Returns or sets the signature's creation time.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureClaimedSigningTime(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Returns or sets the signature's creation time.

Use this property to get or set the signature creation time from the signer's computer. The claimed time, unlike [SignatureValidatedSigningTime](#signaturevalidatedsigningtime-property-pdfverifier-component), does not originate from a trusted TSA and may be forged or wrong. If this value is not set when a new signature is created, the component uses the current UTC time.

The time is provided in UTC.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureCompatibilityErrors Property ([PDFVerifier](#pdfverifier-component) Component)

Returns compatibility errors encountered during validation.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureCompatibilityErrors(SignatureIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Returns compatibility errors encountered during validation.

Use this property to get specific compatibility errors encountered during validation. Unlike chain validation details, compatibility errors indicate violations by the signature of the assumed signature level/profile. For example, BES signatures are required to contain the signing time attribute. A prospective BES signature without such attribute will invoke a compatibility error.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureContactInfo Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the signer's contact information.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureContactInfo(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the signer's contact information. This is a PDF document property.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureContainsLongTermInfo Property ([PDFVerifier](#pdfverifier-component) Component)

Returns true if the signature was found to contain long-term validation details (certificates, CRLs, and OCSP response).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureContainsLongTermInfo(SignatureIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Returns true if the signature was found to contain long-term validation details (certificates, CRLs, and OCSP response).

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# SignatureCoverageEndsAt Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates the byte offset in the PDF file where signature coverage ends.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureCoverageEndsAt(SignatureIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Indicates the byte offset in the PDF file where signature coverage ends.

PDF generators often use incremental updates to make changes in the documents. This may result in the signature only covering a part of the document (one of the past revisions), but not the subsequent changes.

Use this property to identify the offset where the signature coverage ends. One option is to compare it to the length of the whole document. Alternatively, use the [GetSignedVersion](#getsignedversion-method-pdfverifier-component) method of the PDFVerifier struct to extract the exact revision that was signed.

A value of **-1** indicates that the component could not determine the coverage offset.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureCustomData Property ([PDFVerifier](#pdfverifier-component) Component)

Uninterpreted custom data to save with the PDF signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureCustomData(SignatureIndex int32) ([]byte, error)
```

## Remarks

Uninterpreted custom data to save with the PDF signature. The component stores and returns this value as-is and does not validate its contents.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# SignatureEmptyField Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates whether the signature is created as an empty property (a signature placeholder).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureEmptyField(SignatureIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Indicates whether the signature is created as an empty field (a signature placeholder).

An empty field reserves a place for a future signature but does not contain a cryptographic signature value.

NOTE: This property is only applicable for creating new empty signature fields. To read info about empty signature fields, use EmptySignatureFieldCount and other EmptySignatureFields* configuration settings.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# SignatureEntityLabel Property ([PDFVerifier](#pdfverifier-component) Component)

Use this property to get the signature entity label.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureEntityLabel(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Use this property to get the signature entity label.

This property returns a string label that uniquely identifies the signature. The label can be used to establish the signature target in the SignatureFound event or to select the signing chain via the SelectInfo method.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureFilterName Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the PDF security handler filter name to use when creating a new signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureFilterName(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the PDF security handler filter name to use when creating a new signature.

This value determines how PDF viewers, such as Adobe Acrobat Reader, interpret and validate the digital signature. Commonly recognized values include:

- "Adobe.PPKLite" - the default value; instructs Adobe to use its built-in certificate infrastructure.
- "Adobe.PPKMS" - instructs Adobe to use the system-wide Windows certificate store for signature validation.

Custom values (e.g. "VeriSign.PPKVS" used by the VeriSign plug-in) are also supported. However, non-standard filter names may not be recognized by all PDF viewers or validators, which could lead to compatibility or validation issues.

For maximum compatibility across different PDF environments, it is recommended to use the default value **"Adobe.PPKLite"** unless integration with a specific custom handler is required.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureFullSignatureName Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the full name of the signature property.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureFullSignatureName(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the full name of the signature field.

This is an internal identifier of a signature (such as Signature1) and is not meant to be human-readable.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureHandle(SignatureIndex int32) (int64, error)
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int64**

# SignatureHashAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the hash algorithm to be used for signing.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureHashAlgorithm(SignatureIndex int32) (string, error)
```

## Default Value

"SHA256"

## Remarks

Specifies the hash algorithm to be used for signing.

|  |  |  |
| --- | --- | --- |
| SB_HASH_ALGORITHM_SHA1 | SHA1 |  |
| SB_HASH_ALGORITHM_SHA224 | SHA224 |  |
| SB_HASH_ALGORITHM_SHA256 | SHA256 |  |
| SB_HASH_ALGORITHM_SHA384 | SHA384 |  |
| SB_HASH_ALGORITHM_SHA512 | SHA512 |  |
| SB_HASH_ALGORITHM_MD2 | MD2 |  |
| SB_HASH_ALGORITHM_MD4 | MD4 |  |
| SB_HASH_ALGORITHM_MD5 | MD5 |  |
| SB_HASH_ALGORITHM_RIPEMD160 | RIPEMD160 |  |
| SB_HASH_ALGORITHM_CRC32 | CRC32 |  |
| SB_HASH_ALGORITHM_SSL3 | SSL3 |  |
| SB_HASH_ALGORITHM_GOST_R3411_1994 | GOST1994 |  |
| SB_HASH_ALGORITHM_WHIRLPOOL | WHIRLPOOL |  |
| SB_HASH_ALGORITHM_POLY1305 | POLY1305 |  |
| SB_HASH_ALGORITHM_SHA3_224 | SHA3_224 |  |
| SB_HASH_ALGORITHM_SHA3_256 | SHA3_256 |  |
| SB_HASH_ALGORITHM_SHA3_384 | SHA3_384 |  |
| SB_HASH_ALGORITHM_SHA3_512 | SHA3_512 |  |
| SB_HASH_ALGORITHM_BLAKE2S_128 | BLAKE2S_128 |  |
| SB_HASH_ALGORITHM_BLAKE2S_160 | BLAKE2S_160 |  |
| SB_HASH_ALGORITHM_BLAKE2S_224 | BLAKE2S_224 |  |
| SB_HASH_ALGORITHM_BLAKE2S_256 | BLAKE2S_256 |  |
| SB_HASH_ALGORITHM_BLAKE2B_160 | BLAKE2B_160 |  |
| SB_HASH_ALGORITHM_BLAKE2B_256 | BLAKE2B_256 |  |
| SB_HASH_ALGORITHM_BLAKE2B_384 | BLAKE2B_384 |  |
| SB_HASH_ALGORITHM_BLAKE2B_512 | BLAKE2B_512 |  |
| SB_HASH_ALGORITHM_SHAKE_128 | SHAKE_128 |  |
| SB_HASH_ALGORITHM_SHAKE_256 | SHAKE_256 |  |
| SB_HASH_ALGORITHM_SHAKE_128_LEN | SHAKE_128_LEN |  |
| SB_HASH_ALGORITHM_SHAKE_256_LEN | SHAKE_256_LEN |  |

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureHeight Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the height of the signature widget.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureHeight(SignatureIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the height of the signature widget.

Note that the dimensions of the widget are provided in document-specific points, not pixels. This integer field uses whole points. To specify fractional values, use the **WidgetHeight** configuration setting.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureIssuerRDN Property ([PDFVerifier](#pdfverifier-component) Component)

The Relative Distinguished Name of the signing certificate's issuer.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureIssuerRDN(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

The Relative Distinguished Name of the signing certificate's issuer.

A collection of information, in the form of [OID, Value] pairs, about the certificate authority or entity that issued the signing certificate.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureLevel Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the PAdES signature level.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureLevel(SignatureIndex int32) (int32, error)
```

## Possible Values

```text
0   // Unknown1   // Generic2   // BaselineB3   // BaselineT4   // BaselineLT5   // BaselineLTA6   // BES7   // EPES8   // LTV
```

## Default Value

2

## Remarks

Specifies the PAdES signature level.

PAdES standard defines a number of different 'levels' of signatures which can be used for different purposes.

Note that when validating a signature, the LTV modifier may be affected by the validation settings. These include OfflineMode (set it to true to obtain the clean LTV capability) and certificate caching (switch it off to stop earlier validations from affecting the current validation).

The supported levels are:

|  |  |  |
| --- | --- | --- |
| paslUnknown | 0 | Unknown signature level |
| paslGeneric | 1 | Generic signature: Legacy Adobe signature (adbe.pkcs7.detached), corresponds to pstLegacy signature type |
| paslBaselineB | 2 | Baseline B (B-B, basic) |
| paslBaselineT | 3 | Baseline T (B-T, timestamped) |
| paslBaselineLT | 4 | Baseline LT (B-LT, long-term) |
| paslBaselineLTA | 5 | Baseline LTA (B-LTA, long-term with archived timestamp) |
| paslBES | 6 | BES (Basic Electronic Signature) |
| paslEPES | 7 | EPES (Electronic Signature with an Explicit Policy) |
| paslLTV | 8 | LTV (Electronic Signature with with revocation info) |

When creating a signature, some levels require additional settings:

- **paslBaselineT** requires a timestamp server.
- **paslBaselineLT**, **paslBaselineLTA**, and **paslLTV** require deep validation and a timestamp server.
- **paslEPES** requires [SignaturePolicyID](#signaturepolicyid-property-pdfverifier-component), [SignaturePolicyHashAlgorithm](#signaturepolicyhashalgorithm-property-pdfverifier-component), and [SignaturePolicyHash](#signaturepolicyhash-property-pdfverifier-component).

When evaluating the level of a PAdES signature, SecureBlackbox uses the following criteria and conditions:

- If the signing chain is found to be invalid or incomplete, the level will be reported as **Baseline-B**, **BES**, or **EPES**, depending on the attributes included in the signature (such as policy details).
- If the signing chain is found to be valid, the signature includes a timestamp, and the timestamp chain is valid (or the IgnoreTimestampChainValidityForLevelDetection config property is set to true), the level will be reported as **Baseline-T**.
- If the Baseline-T conditions above are met, and all the validation material is included in the DSS, the level will be reported as **Baseline-LT**.
- If the Baseline-LT conditions above are met, and the signature is protected by a later document timestamp, the level will be reported as **Baseline-LTA**.
- If the signing chain is found to be valid, the signature includes a timestamp, and the timestamp chain is valid (or the IgnoreTimestampChainValidityForLevelDetection config property is set to true), and all the validation material is included in the DSS *or signature*, and the signature does not meet the Baseline-LT and Baseline-LTA criteria, the level will be reported as LTV. In other words, the LTV level is a relaxed version of Baseline-LT, that allows the validation material to be included in the signature itself and not DSS.

Note: The *LTV-enabled* property reported by Adobe Reader can be misleading, as it does not represent a valid PAdES level. Instead, it is a rather indicative claim that advises that the signature does include some form of an external timestamp (a signature timestamp or a document timestamp) and some piece of validation material, and the signing chain ends up with a local trust anchor. As such, it can be a much weaker property than the Baseline-LT, Baseline-LTA, and LTV levels reported by SecureBlackbox.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureLocation Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the host name or the physical location of the signing entity.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureLocation(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the host name or the physical location of the signing entity. This is a PDF property.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureOffsetX Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the signature widget offset from the left-hand page border.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureOffsetX(SignatureIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the signature widget offset from the left-hand page border.

The value is expressed in document-specific points. When a new visible signature is created, a negative value is converted to the page width plus that value. This integer field uses whole points; to specify fractional values, use the **WidgetOffsetX** configuration setting.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureOffsetY Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the signature widget offset from the bottom page border.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureOffsetY(SignatureIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the signature widget offset from the bottom page border.

The value is expressed in document-specific points. When a new visible signature is created, a negative value is converted to the page height plus that value. This integer field uses whole points; to specify fractional values, use the **WidgetOffsetY** configuration setting.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignaturePage Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates the index of the page on which the signature is placed.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignaturePage(SignatureIndex int32) (int32, error)
```

## Default Value

-1

## Remarks

Indicates the index of the page on which the signature is placed. The value "-1" indicates an invisible signature.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignaturePolicyHash Property ([PDFVerifier](#pdfverifier-component) Component)

The signature policy hash value for EPES signatures.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignaturePolicyHash(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

The signature policy hash value for EPES signatures.

This property contains the hash of the external signature policy document. It must be set, together with [SignaturePolicyID](#signaturepolicyid-property-pdfverifier-component) and [SignaturePolicyHashAlgorithm](#signaturepolicyhashalgorithm-property-pdfverifier-component), when creating a **paslEPES** signature.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignaturePolicyHashAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

The algorithm that was used to calculate the signature policy hash.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignaturePolicyHashAlgorithm(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

The algorithm that was used to calculate the signature policy hash.

This property must be set, together with [SignaturePolicyID](#signaturepolicyid-property-pdfverifier-component) and [SignaturePolicyHash](#signaturepolicyhash-property-pdfverifier-component), when creating a **paslEPES** signature.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignaturePolicyID Property ([PDFVerifier](#pdfverifier-component) Component)

The policy ID to be included in the signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignaturePolicyID(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

The policy ID to be included in the signature.

This property identifies the signature policy for EPES signatures. It must be set, together with [SignaturePolicyHashAlgorithm](#signaturepolicyhashalgorithm-property-pdfverifier-component) and [SignaturePolicyHash](#signaturepolicyhash-property-pdfverifier-component), when creating a **paslEPES** signature.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignaturePolicyURI Property ([PDFVerifier](#pdfverifier-component) Component)

The signature policy URI that was included in the signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignaturePolicyURI(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

The signature policy URI that was included in the signature.

Use this property to set or retrieve the URI of the signature policy for EPES signatures. The URI is optional metadata; the policy ID, policy hash algorithm, and policy hash identify the policy value itself.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureReason Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the reason for signing.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureReason(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the reason for signing. This is a PDF document property.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureSerialNumber Property ([PDFVerifier](#pdfverifier-component) Component)

The serial number of the signing certificate that created the signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureSerialNumber(SignatureIndex int32) ([]byte, error)
```

## Remarks

The serial number of the signing certificate that created the signature.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# SignatureBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the binary representation of the underlying CMS/PKCS#7 signature container, or the timestamp token for document timestamp signatures.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureBytes(SignatureIndex int32) ([]byte, error)
```

## Remarks

Returns the binary representation of the underlying CMS/PKCS#7 signature container, or the timestamp token for document timestamp signatures.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# SignatureName Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the unique signature identifier to use.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureName(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Specifies the unique signature identifier to use.

This is an internal identifier of a signature (such as Signature1) and is not meant to be human-readable.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureType Property ([PDFVerifier](#pdfverifier-component) Component)

The type of the PDF signature: Legacy, PAdES, document timestamp, or unknown.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureType(SignatureIndex int32) (int32, error)
```

## Possible Values

```text
0   // Unknown1   // Legacy2   // PAdES3   // DocumentTimestamp
```

## Default Value

2

## Remarks

The type of the PDF signature: Legacy, PAdES, document timestamp, or unknown.

The default value for new signatures is **pstPAdES**. PAdES signatures use [SignatureLevel](#signaturelevel-property-pdfverifier-component) to select the PAdES profile. Document timestamp signatures require a timestamp server and do not contain signer certificate information.

The supported values are:

|  |  |  |
| --- | --- | --- |
| pstUnknown | 0 | Unknown signature type |
| pstLegacy | 1 | Legacy Adobe signature (adbe.pkcs7.detached or adbe.pkcs7.sha1) |
| pstPAdES | 2 | PAdES signature (ETSI.CAdES.detached), use Level field for detailed info |
| pstDocumentTimestamp | 3 | Document timestamp (ETSI.RFC3161) |

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureValidationResult Property ([PDFVerifier](#pdfverifier-component) Component)

The outcome of the cryptographic signature validation.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureValidationResult(SignatureIndex int32) (int32, error)
```

## Possible Values

```text
0   // Valid1   // Unknown2   // Corrupted3   // SignerNotFound4   // Failure5   // ReferenceCorrupted
```

## Default Value

0

## Remarks

The outcome of the cryptographic signature validation.

The following signature validity values are supported:

|  |  |  |
| --- | --- | --- |
| svtValid | 0 | The signature is valid |
| svtUnknown | 1 | Signature validity is unknown |
| svtCorrupted | 2 | The signature is corrupted |
| svtSignerNotFound | 3 | Failed to acquire the signing certificate. The signature cannot be validated. |
| svtFailure | 4 | General failure |
| svtReferenceCorrupted | 5 | Reference corrupted (XML-based signatures only) |

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SignatureSubjectKeyID Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the subject key identifier of the signing certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureSubjectKeyID(SignatureIndex int32) ([]byte, error)
```

## Remarks

Contains the subject key identifier of the signing certificate.

Subject Key Identifier is a (non-critical) X.509 certificate extension which allows the identification of certificates containing a particular public key. In SecureBlackbox, the unique identifier is represented by a SHA-1 hash of the bit string of the subject public key.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# SignatureSubjectRDN Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the RDN of the owner of the signing certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureSubjectRDN(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the RDN of the owner of the signing certificate.

RDN is a set of OID=Value pairs declared in the certificate that provide the subject owner's details.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureTimestamped Property ([PDFVerifier](#pdfverifier-component) Component)

Use this property to establish whether the signature contains an embedded timestamp.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureTimestamped(SignatureIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Use this property to establish whether the signature contains an embedded timestamp.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# SignatureValidatedSigningTime Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the certified signing time.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureValidatedSigningTime(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the certified signing time.

Use this property to obtain the signing time as certified by a timestamp from a trusted timestamping authority. This property is only non-empty if there was a valid timestamp included in the signature.

[SignatureClaimedSigningTime](#signatureclaimedsigningtime-property-pdfverifier-component) returns a non-trusted signing time from the signer's computer.

Both times are in UTC.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureValidationLog Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the signing certificate's chain validation log.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureValidationLog(SignatureIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the signing certificate's chain validation log. This information may be very useful in investigating chain validation failures.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# SignatureWidth Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the width of the signature widget.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SignatureWidth(SignatureIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Specifies the width of the signature widget.

Note that the dimensions of the widget are provided in document-specific points, not pixels. This integer field uses whole points. To specify fractional values, use the **WidgetWidth** configuration setting.

The *SignatureIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [SignatureCount](#signaturecount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# SocketDNSMode Property ([PDFVerifier](#pdfverifier-component) Component)

Selects the DNS resolver to use: the class's (secure) built-in one, or the one provided by the system.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketDNSMode() (int32, error)func (obj *PDFVerifier) SetSocketDNSMode(value int32) error
```

## Possible Values

```text
0   // Auto1   // Platform2   // Own3   // OwnSecure
```

## Default Value

0

## Remarks

Selects the DNS resolver to use: the component's (secure) built-in one, or the one provided by the system.

|  |  |
| --- | --- |
| dmAuto | 0 |
| dmPlatform | 1 |
| dmOwn | 2 |
| dmOwnSecure | 3 |

## Data Type

**int32**

# SocketDNSPort Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the port number to be used for sending queries to the DNS server.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketDNSPort() (int32, error)func (obj *PDFVerifier) SetSocketDNSPort(value int32) error
```

## Default Value

0

## Remarks

Specifies the port number to be used for sending queries to the DNS server.

## Data Type

**int32**

# SocketDNSQueryTimeout Property ([PDFVerifier](#pdfverifier-component) Component)

The timeout (in milliseconds) for each DNS query.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketDNSQueryTimeout() (int32, error)func (obj *PDFVerifier) SetSocketDNSQueryTimeout(value int32) error
```

## Default Value

0

## Remarks

The timeout (in milliseconds) for each DNS query. The value of 0 indicates an infinite timeout.

## Data Type

**int32**

# SocketDNSServers Property ([PDFVerifier](#pdfverifier-component) Component)

The addresses of DNS servers to use for address resolution, separated by commas or semicolons.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketDNSServers() (string, error)func (obj *PDFVerifier) SetSocketDNSServers(value string) error
```

## Default Value

""

## Remarks

The addresses of DNS servers to use for address resolution, separated by commas or semicolons.

## Data Type

**string**

# SocketDNSTotalTimeout Property ([PDFVerifier](#pdfverifier-component) Component)

The timeout (in milliseconds) for the whole resolution process.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketDNSTotalTimeout() (int32, error)func (obj *PDFVerifier) SetSocketDNSTotalTimeout(value int32) error
```

## Default Value

0

## Remarks

The timeout (in milliseconds) for the whole resolution process. The value of 0 indicates an infinite timeout.

## Data Type

**int32**

# SocketIncomingSpeedLimit Property ([PDFVerifier](#pdfverifier-component) Component)

The maximum number of bytes to read from the socket, per second.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketIncomingSpeedLimit() (int32, error)func (obj *PDFVerifier) SetSocketIncomingSpeedLimit(value int32) error
```

## Default Value

0

## Remarks

The maximum number of bytes to read from the socket, per second.

## Data Type

**int32**

# SocketLocalAddress Property ([PDFVerifier](#pdfverifier-component) Component)

The local network interface to bind the socket to.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketLocalAddress() (string, error)func (obj *PDFVerifier) SetSocketLocalAddress(value string) error
```

## Default Value

""

## Remarks

The local network interface to bind the socket to.

## Data Type

**string**

# SocketLocalPort Property ([PDFVerifier](#pdfverifier-component) Component)

The local port number to bind the socket to.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketLocalPort() (int32, error)func (obj *PDFVerifier) SetSocketLocalPort(value int32) error
```

## Default Value

0

## Remarks

The local port number to bind the socket to.

## Data Type

**int32**

# SocketOutgoingSpeedLimit Property ([PDFVerifier](#pdfverifier-component) Component)

The maximum number of bytes to write to the socket, per second.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketOutgoingSpeedLimit() (int32, error)func (obj *PDFVerifier) SetSocketOutgoingSpeedLimit(value int32) error
```

## Default Value

0

## Remarks

The maximum number of bytes to write to the socket, per second.

## Data Type

**int32**

# SocketTimeout Property ([PDFVerifier](#pdfverifier-component) Component)

The maximum period of waiting, in milliseconds, after which the socket operation is considered unsuccessful.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketTimeout() (int32, error)func (obj *PDFVerifier) SetSocketTimeout(value int32) error
```

## Default Value

60000

## Remarks

The maximum period of waiting, in milliseconds, after which the socket operation is considered unsuccessful.

If *Timeout* is set to 0, a socket operation will expire after the system-default timeout (2 hrs 8 min for TCP stack).

## Data Type

**int32**

# SocketUseIPv6 Property ([PDFVerifier](#pdfverifier-component) Component)

Enables or disables IP protocol version 6.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SocketUseIPv6() (bool, error)func (obj *PDFVerifier) SetSocketUseIPv6(value bool) error
```

## Default Value

false

## Remarks

Enables or disables IP protocol version 6.

## Data Type

**bool**

# TimestampCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the Timestamp arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampCount() (int32, error)
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [TimestampAccuracy](#timestampaccuracy-property-pdfverifier-component)
- [TimestampBytes](#timestampbytes-property-pdfverifier-component)
- [TimestampCertificateIndex](#timestampcertificateindex-property-pdfverifier-component)
- [TimestampChainValidationDetails](#timestampchainvalidationdetails-property-pdfverifier-component)
- [TimestampChainValidationResult](#timestampchainvalidationresult-property-pdfverifier-component)
- [TimestampContainsLongTermInfo](#timestampcontainslongterminfo-property-pdfverifier-component)
- [TimestampEntityLabel](#timestampentitylabel-property-pdfverifier-component)
- [TimestampHashAlgorithm](#timestamphashalgorithm-property-pdfverifier-component)
- [TimestampParentEntity](#timestampparententity-property-pdfverifier-component)
- [TimestampSerialNumber](#timestampserialnumber-property-pdfverifier-component)
- [TimestampTime](#timestamptime-property-pdfverifier-component)
- [TimestampTSAName](#timestamptsaname-property-pdfverifier-component)
- [TimestampType](#timestamptype-property-pdfverifier-component)
- [TimestampValidationLog](#timestampvalidationlog-property-pdfverifier-component)
- [TimestampValidationResult](#timestampvalidationresult-property-pdfverifier-component)

The array indices start at *0* and end at *TimestampCount - 1*.

This property is read-only.

## Data Type

**int32**

# TimestampAccuracy Property ([PDFVerifier](#pdfverifier-component) Component)

This property indicates the accuracy of the included time mark, in microseconds.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampAccuracy(TimestampIndex int32) (int64, error)
```

## Default Value

0

## Remarks

This field indicates the accuracy of the included time mark, in microseconds.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int64**

# TimestampBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw timestamp data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampBytes(TimestampIndex int32) ([]byte, error)
```

## Remarks

Returns the raw timestamp data in DER format.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# TimestampCertificateIndex Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the index of the TSA certificate in the Certificates collection.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampCertificateIndex(TimestampIndex int32) (int32, error)
```

## Default Value

-1

## Remarks

Returns the index of the TSA certificate in the Certificates collection.

Use this property to look up the TSA certificate in the Certificates collection.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# TimestampChainValidationDetails Property ([PDFVerifier](#pdfverifier-component) Component)

The details of a certificate chain validation outcome.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampChainValidationDetails(TimestampIndex int32) (int32, error)
```

## Default Value

0

## Remarks

The details of a certificate chain validation outcome. They may often suggest the reasons that contributed to the overall validation result.

Returns a bit mask of the following options:

|  |  |  |
| --- | --- | --- |
| cvrBadData | 0x0001 | One or more certificates in the validation path are malformed |
| cvrRevoked | 0x0002 | One or more certificates are revoked |
| cvrNotYetValid | 0x0004 | One or more certificates are not yet valid |
| cvrExpired | 0x0008 | One or more certificates are expired |
| cvrInvalidSignature | 0x0010 | A certificate contains a non-valid digital signature |
| cvrUnknownCA | 0x0020 | A CA certificate for one or more certificates has not been found (chain incomplete) |
| cvrCAUnauthorized | 0x0040 | One of the CA certificates are not authorized to act as CA |
| cvrCRLNotVerified | 0x0080 | One or more CRLs could not be verified |
| cvrOCSPNotVerified | 0x0100 | One or more OCSP responses could not be verified |
| cvrIdentityMismatch | 0x0200 | The identity protected by the certificate (a TLS endpoint or an e-mail addressee) does not match what is recorded in the certificate |
| cvrNoKeyUsage | 0x0400 | A mandatory key usage is not enabled in one of the chain certificates |
| cvrBlocked | 0x0800 | One or more certificates are blocked |
| cvrFailure | 0x1000 | General validation failure |
| cvrChainLoop | 0x2000 | Chain loop: one of the CA certificates recursively signs itself |
| cvrWeakAlgorithm | 0x4000 | A weak algorithm is used in one of certificates or revocation elements |
| cvrUserEnforced | 0x8000 | The chain was considered invalid following intervention from a user code |

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# TimestampChainValidationResult Property ([PDFVerifier](#pdfverifier-component) Component)

The outcome of a certificate chain validation routine.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampChainValidationResult(TimestampIndex int32) (int32, error)
```

## Possible Values

```text
0   // Valid1   // ValidButUntrusted2   // Invalid3   // CantBeEstablished
```

## Default Value

0

## Remarks

The outcome of a certificate chain validation routine.

Available options:

|  |  |  |
| --- | --- | --- |
| cvtValid | 0 | The chain is valid |
| cvtValidButUntrusted | 1 | The chain is valid, but the root certificate is not trusted |
| cvtInvalid | 2 | The chain is not valid (some of certificates are revoked, expired, or contain an invalid signature) |
| cvtCantBeEstablished | 3 | The validity of the chain cannot be established because of missing or unavailable validation information (certificates, CRLs, or OCSP responses) |

Use the ValidationLog property to access the detailed validation log.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# TimestampContainsLongTermInfo Property ([PDFVerifier](#pdfverifier-component) Component)

Returns true if the signature was found to contain long-term validation details (certificates, CRLs, and OCSP response).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampContainsLongTermInfo(TimestampIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Returns true if the signature was found to contain long-term validation details (certificates, CRLs, and OCSP response).

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# TimestampEntityLabel Property ([PDFVerifier](#pdfverifier-component) Component)

Use this property to get the timestamp entity label.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampEntityLabel(TimestampIndex int32) (string, error)
```

## Default Value

""

## Remarks

Use this property to get the timestamp entity label.

This property returns a string label that uniquely identifies the timestamp. The label can be used to establish the signature target in the SignatureFound event or to select the signing chain via the SelectInfo method.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TimestampHashAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the timestamp's hash algorithm.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampHashAlgorithm(TimestampIndex int32) (string, error)
```

## Default Value

""

## Remarks

Returns the timestamp's hash algorithm.

|  |  |  |
| --- | --- | --- |
| SB_HASH_ALGORITHM_SHA1 | SHA1 |  |
| SB_HASH_ALGORITHM_SHA224 | SHA224 |  |
| SB_HASH_ALGORITHM_SHA256 | SHA256 |  |
| SB_HASH_ALGORITHM_SHA384 | SHA384 |  |
| SB_HASH_ALGORITHM_SHA512 | SHA512 |  |
| SB_HASH_ALGORITHM_MD2 | MD2 |  |
| SB_HASH_ALGORITHM_MD4 | MD4 |  |
| SB_HASH_ALGORITHM_MD5 | MD5 |  |
| SB_HASH_ALGORITHM_RIPEMD160 | RIPEMD160 |  |
| SB_HASH_ALGORITHM_CRC32 | CRC32 |  |
| SB_HASH_ALGORITHM_SSL3 | SSL3 |  |
| SB_HASH_ALGORITHM_GOST_R3411_1994 | GOST1994 |  |
| SB_HASH_ALGORITHM_WHIRLPOOL | WHIRLPOOL |  |
| SB_HASH_ALGORITHM_POLY1305 | POLY1305 |  |
| SB_HASH_ALGORITHM_SHA3_224 | SHA3_224 |  |
| SB_HASH_ALGORITHM_SHA3_256 | SHA3_256 |  |
| SB_HASH_ALGORITHM_SHA3_384 | SHA3_384 |  |
| SB_HASH_ALGORITHM_SHA3_512 | SHA3_512 |  |
| SB_HASH_ALGORITHM_BLAKE2S_128 | BLAKE2S_128 |  |
| SB_HASH_ALGORITHM_BLAKE2S_160 | BLAKE2S_160 |  |
| SB_HASH_ALGORITHM_BLAKE2S_224 | BLAKE2S_224 |  |
| SB_HASH_ALGORITHM_BLAKE2S_256 | BLAKE2S_256 |  |
| SB_HASH_ALGORITHM_BLAKE2B_160 | BLAKE2B_160 |  |
| SB_HASH_ALGORITHM_BLAKE2B_256 | BLAKE2B_256 |  |
| SB_HASH_ALGORITHM_BLAKE2B_384 | BLAKE2B_384 |  |
| SB_HASH_ALGORITHM_BLAKE2B_512 | BLAKE2B_512 |  |
| SB_HASH_ALGORITHM_SHAKE_128 | SHAKE_128 |  |
| SB_HASH_ALGORITHM_SHAKE_256 | SHAKE_256 |  |
| SB_HASH_ALGORITHM_SHAKE_128_LEN | SHAKE_128_LEN |  |
| SB_HASH_ALGORITHM_SHAKE_256_LEN | SHAKE_256_LEN |  |

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TimestampParentEntity Property ([PDFVerifier](#pdfverifier-component) Component)

Use this property to get the label of the timestamp's parent entity.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampParentEntity(TimestampIndex int32) (string, error)
```

## Default Value

""

## Remarks

Use this property to get the label of the timestamp's parent entity.

This property references the EntityLabel of the object that the timestamp covers, typically a signature.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TimestampSerialNumber Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the timestamp's serial number.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampSerialNumber(TimestampIndex int32) ([]byte, error)
```

## Remarks

Returns the timestamp's serial number.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# TimestampTime Property ([PDFVerifier](#pdfverifier-component) Component)

The time point incorporated into the timestamp.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampTime(TimestampIndex int32) (string, error)
```

## Default Value

""

## Remarks

The time point incorporated into the timestamp.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TimestampType Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the type of the timestamp.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampType(TimestampIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Returns the type of the timestamp.

Available options:

|  |  |  |
| --- | --- | --- |
| tstUnknown | 0 |  |
| tstLegacy | 1 | Supported by: Authenticode components |
| tstTrusted | 2 | Supported by: Authenticode components |
| tstGeneric | 3 | Supported by: CAdES components |
| tstESC | 4 | Supported by: CAdES components |
| tstContent | 5 | Supported by: CAdES components |
| tstCertsAndCRLs | 6 | Supported by: CAdES components |
| tstArchive | 7 | Archive timestamp. Supported by: ASiC, CAdES, JAdES, Office, SOAP, XAdES components |
| tstArchive2 | 8 | Archive v2 timestamp. Supported by: ASiC, CAdES components |
| tstArchive3 | 9 | Archive v3 timestamp. Supported by: ASiC, CAdES components |
| tstIndividualDataObjects | 10 | Individual data objects timestamp. Supported by: ASiC, Office, SOAP, XAdES components |
| tstAllDataObjects | 11 | All data objects timestamp. Supported by: ASiC, Office, SOAP, XAdES components |
| tstSignature | 12 | Signature timestamp. Supported by: ASiC, JAdES, Office, SOAP, XAdES components |
| tstRefsOnly | 13 | RefsOnly timestamp. Supported by: ASiC, JAdES, Office, SOAP, XAdES components |
| tstSigAndRefs | 14 | SigAndRefs timestamp. Supported by: ASiC, JAdES, Office, SOAP, XAdES components |
| tstSignedData | 15 | SignedData timestamp. Supported by: JAdES components |
| tstArchive141 | 16 | Archive timestamp v1.4.1. Supported by: ASiC, Office, SOAP, XAdES components |

Not all of the above timestamp types can be supported by a specific signature technology used (CAdES, PDF, XAdES).

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# TimestampTSAName Property ([PDFVerifier](#pdfverifier-component) Component)

This value uniquely identifies the Timestamp Authority (TSA).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampTSAName(TimestampIndex int32) (string, error)
```

## Default Value

""

## Remarks

This value uniquely identifies the Timestamp Authority (TSA).

This property provides information about the entity that manages the TSA.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TimestampValidationLog Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the TSA certificate chain validation log.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampValidationLog(TimestampIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the TSA certificate chain validation log. This information is extremely useful if the timestamp validation fails.

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TimestampValidationResult Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the timestamp validation outcome.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TimestampValidationResult(TimestampIndex int32) (int32, error)
```

## Possible Values

```text
0   // Valid1   // Unknown2   // Corrupted3   // SignerNotFound4   // Failure5   // ReferenceCorrupted
```

## Default Value

0

## Remarks

Contains the timestamp validation outcome.

Use this property to check the result of the most recent timestamp validation.

|  |  |  |
| --- | --- | --- |
| svtValid | 0 | The signature is valid |
| svtUnknown | 1 | Signature validity is unknown |
| svtCorrupted | 2 | The signature is corrupted |
| svtSignerNotFound | 3 | Failed to acquire the signing certificate. The signature cannot be validated. |
| svtFailure | 4 | General failure |
| svtReferenceCorrupted | 5 | Reference corrupted (XML-based signatures only) |

The *TimestampIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TimestampCount](#timestampcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# TLSClientCertCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the TLSClientCert arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSClientCertCount() (int32, error)func (obj *PDFVerifier) SetTLSClientCertCount(value int32) error
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [TLSClientCertBytes](#tlsclientcertbytes-property-pdfverifier-component)
- [TLSClientCertHandle](#tlsclientcerthandle-property-pdfverifier-component)

The array indices start at *0* and end at *TLSClientCertCount - 1*.

## Data Type

**int32**

# TLSClientCertBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw certificate data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSClientCertBytes(TLSClientCertIndex int32) ([]byte, error)
```

## Remarks

Returns the raw certificate data in DER format.

The *TLSClientCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSClientCertCount](#tlsclientcertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# TLSClientCertHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSClientCertHandle(TLSClientCertIndex int32) (int64, error)func (obj *PDFVerifier) SetTLSClientCertHandle(TLSClientCertIndex int32, value int64) error
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *TLSClientCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSClientCertCount](#tlsclientcertcount-property-pdfverifier-component) property.

## Data Type

**int64**

# TLSServerCertCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the TLSServerCert arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertCount() (int32, error)
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [TLSServerCertBytes](#tlsservercertbytes-property-pdfverifier-component)
- [TLSServerCertFingerprint](#tlsservercertfingerprint-property-pdfverifier-component)
- [TLSServerCertHandle](#tlsservercerthandle-property-pdfverifier-component)
- [TLSServerCertIssuer](#tlsservercertissuer-property-pdfverifier-component)
- [TLSServerCertIssuerRDN](#tlsservercertissuerrdn-property-pdfverifier-component)
- [TLSServerCertKeyAlgorithm](#tlsservercertkeyalgorithm-property-pdfverifier-component)
- [TLSServerCertKeyBits](#tlsservercertkeybits-property-pdfverifier-component)
- [TLSServerCertKeyUsage](#tlsservercertkeyusage-property-pdfverifier-component)
- [TLSServerCertSelfSigned](#tlsservercertselfsigned-property-pdfverifier-component)
- [TLSServerCertSerialNumber](#tlsservercertserialnumber-property-pdfverifier-component)
- [TLSServerCertSigAlgorithm](#tlsservercertsigalgorithm-property-pdfverifier-component)
- [TLSServerCertSubject](#tlsservercertsubject-property-pdfverifier-component)
- [TLSServerCertSubjectRDN](#tlsservercertsubjectrdn-property-pdfverifier-component)
- [TLSServerCertValidFrom](#tlsservercertvalidfrom-property-pdfverifier-component)
- [TLSServerCertValidTo](#tlsservercertvalidto-property-pdfverifier-component)

The array indices start at *0* and end at *TLSServerCertCount - 1*.

This property is read-only.

## Data Type

**int32**

# TLSServerCertBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw certificate data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertBytes(TLSServerCertIndex int32) ([]byte, error)
```

## Remarks

Returns the raw certificate data in DER format.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# TLSServerCertFingerprint Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the fingerprint (a hash imprint) of this certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertFingerprint(TLSServerCertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Contains the fingerprint (a hash imprint) of this certificate.

While there is no formal standard defining what a fingerprint is, a SHA1 hash of the certificate's DER-encoded body is typically used.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSServerCertHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertHandle(TLSServerCertIndex int32) (int64, error)
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int64**

# TLSServerCertIssuer Property ([PDFVerifier](#pdfverifier-component) Component)

The common name of the certificate issuer (CA), typically a company name.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertIssuer(TLSServerCertIndex int32) (string, error)
```

## Default Value

""

## Remarks

The common name of the certificate issuer (CA), typically a company name. This is part of a larger set of credentials available via [TLSIssuerRDN](#PDFVerifier_p_TLSIssuerRDN).

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSServerCertIssuerRDN Property ([PDFVerifier](#pdfverifier-component) Component)

A list of Property=Value pairs that uniquely identify the certificate issuer.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertIssuerRDN(TLSServerCertIndex int32) (string, error)
```

## Default Value

""

## Remarks

A list of *Property=Value* pairs that uniquely identify the certificate issuer.

Example: */C=US/O=Nationwide CA/CN=Web Certification Authority*

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSServerCertKeyAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the public key algorithm of this certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertKeyAlgorithm(TLSServerCertIndex int32) (string, error)
```

## Default Value

"0"

## Remarks

Specifies the public key algorithm of this certificate.

|  |  |  |
| --- | --- | --- |
| SB_CERT_ALGORITHM_ID_RSA_ENCRYPTION | rsaEncryption |  |
| SB_CERT_ALGORITHM_MD2_RSA_ENCRYPTION | md2withRSAEncryption |  |
| SB_CERT_ALGORITHM_MD5_RSA_ENCRYPTION | md5withRSAEncryption |  |
| SB_CERT_ALGORITHM_SHA1_RSA_ENCRYPTION | sha1withRSAEncryption |  |
| SB_CERT_ALGORITHM_ID_DSA | id-dsa |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA1 | id-dsa-with-sha1 |  |
| SB_CERT_ALGORITHM_DH_PUBLIC | dhpublicnumber |  |
| SB_CERT_ALGORITHM_SHA224_RSA_ENCRYPTION | sha224WithRSAEncryption |  |
| SB_CERT_ALGORITHM_SHA256_RSA_ENCRYPTION | sha256WithRSAEncryption |  |
| SB_CERT_ALGORITHM_SHA384_RSA_ENCRYPTION | sha384WithRSAEncryption |  |
| SB_CERT_ALGORITHM_SHA512_RSA_ENCRYPTION | sha512WithRSAEncryption |  |
| SB_CERT_ALGORITHM_ID_RSAPSS | id-RSASSA-PSS |  |
| SB_CERT_ALGORITHM_ID_RSAOAEP | id-RSAES-OAEP |  |
| SB_CERT_ALGORITHM_RSASIGNATURE_RIPEMD160 | ripemd160withRSA |  |
| SB_CERT_ALGORITHM_ID_ELGAMAL | elGamal |  |
| SB_CERT_ALGORITHM_SHA1_ECDSA | ecdsa-with-SHA1 |  |
| SB_CERT_ALGORITHM_RECOMMENDED_ECDSA | ecdsa-recommended |  |
| SB_CERT_ALGORITHM_SHA224_ECDSA | ecdsa-with-SHA224 |  |
| SB_CERT_ALGORITHM_SHA256_ECDSA | ecdsa-with-SHA256 |  |
| SB_CERT_ALGORITHM_SHA384_ECDSA | ecdsa-with-SHA384 |  |
| SB_CERT_ALGORITHM_SHA512_ECDSA | ecdsa-with-SHA512 |  |
| SB_CERT_ALGORITHM_EC | id-ecPublicKey |  |
| SB_CERT_ALGORITHM_SPECIFIED_ECDSA | ecdsa-specified |  |
| SB_CERT_ALGORITHM_GOST_R3410_1994 | id-GostR3410-94 |  |
| SB_CERT_ALGORITHM_GOST_R3410_2001 | id-GostR3410-2001 |  |
| SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_1994 | id-GostR3411-94-with-GostR3410-94 |  |
| SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_2001 | id-GostR3411-94-with-GostR3410-2001 |  |
| SB_CERT_ALGORITHM_SHA1_ECDSA_PLAIN | ecdsa-plain-SHA1 |  |
| SB_CERT_ALGORITHM_SHA224_ECDSA_PLAIN | ecdsa-plain-SHA224 |  |
| SB_CERT_ALGORITHM_SHA256_ECDSA_PLAIN | ecdsa-plain-SHA256 |  |
| SB_CERT_ALGORITHM_SHA384_ECDSA_PLAIN | ecdsa-plain-SHA384 |  |
| SB_CERT_ALGORITHM_SHA512_ECDSA_PLAIN | ecdsa-plain-SHA512 |  |
| SB_CERT_ALGORITHM_RIPEMD160_ECDSA_PLAIN | ecdsa-plain-RIPEMD160 |  |
| SB_CERT_ALGORITHM_WHIRLPOOL_RSA_ENCRYPTION | whirlpoolWithRSAEncryption |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA224 | id-dsa-with-sha224 |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA256 | id-dsa-with-sha256 |  |
| SB_CERT_ALGORITHM_SHA3_224_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-224 |  |
| SB_CERT_ALGORITHM_SHA3_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-256 |  |
| SB_CERT_ALGORITHM_SHA3_384_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-384 |  |
| SB_CERT_ALGORITHM_SHA3_512_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-512 |  |
| SB_CERT_ALGORITHM_SHA3_224_ECDSA | id-ecdsa-with-sha3-224 |  |
| SB_CERT_ALGORITHM_SHA3_256_ECDSA | id-ecdsa-with-sha3-256 |  |
| SB_CERT_ALGORITHM_SHA3_384_ECDSA | id-ecdsa-with-sha3-384 |  |
| SB_CERT_ALGORITHM_SHA3_512_ECDSA | id-ecdsa-with-sha3-512 |  |
| SB_CERT_ALGORITHM_SHA3_224_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-224 |  |
| SB_CERT_ALGORITHM_SHA3_256_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-256 |  |
| SB_CERT_ALGORITHM_SHA3_384_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-384 |  |
| SB_CERT_ALGORITHM_SHA3_512_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-512 |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA3_224 | id-dsa-with-sha3-224 |  |
| SB_CERT_ALGORITHM_ID_DSA_SHA3_256 | id-dsa-with-sha3-256 |  |
| SB_CERT_ALGORITHM_BLAKE2S_128_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s128 |  |
| SB_CERT_ALGORITHM_BLAKE2S_160_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s160 |  |
| SB_CERT_ALGORITHM_BLAKE2S_224_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s224 |  |
| SB_CERT_ALGORITHM_BLAKE2S_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_160_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b160 |  |
| SB_CERT_ALGORITHM_BLAKE2B_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_384_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b384 |  |
| SB_CERT_ALGORITHM_BLAKE2B_512_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b512 |  |
| SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA | id-ecdsa-with-blake2s128 |  |
| SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA | id-ecdsa-with-blake2s160 |  |
| SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA | id-ecdsa-with-blake2s224 |  |
| SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA | id-ecdsa-with-blake2s256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA | id-ecdsa-with-blake2b160 |  |
| SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA | id-ecdsa-with-blake2b256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA | id-ecdsa-with-blake2b384 |  |
| SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA | id-ecdsa-with-blake2b512 |  |
| SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s128 |  |
| SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s160 |  |
| SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s224 |  |
| SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b160 |  |
| SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b256 |  |
| SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b384 |  |
| SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b512 |  |
| SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_224 | id-dsa-with-blake2s224 |  |
| SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_256 | id-dsa-with-blake2s256 |  |
| SB_CERT_ALGORITHM_EDDSA_ED25519 | id-Ed25519 |  |
| SB_CERT_ALGORITHM_EDDSA_ED448 | id-Ed448 |  |
| SB_CERT_ALGORITHM_EDDSA_ED25519_PH | id-Ed25519ph |  |
| SB_CERT_ALGORITHM_EDDSA_ED448_PH | id-Ed448ph |  |
| SB_CERT_ALGORITHM_EDDSA | id-EdDSA |  |
| SB_CERT_ALGORITHM_EDDSA_SIGNATURE | id-EdDSA-sig |  |
| SB_CERT_ALGORITHM_MLDSA_44 | id-ml-dsa-44 |  |
| SB_CERT_ALGORITHM_MLDSA_65 | id-ml-dsa-65 |  |
| SB_CERT_ALGORITHM_MLDSA_87 | id-ml-dsa-87 |  |
| SB_CERT_ALGORITHM_HASH_MLDSA_44_SHA512 | id-hash-ml-dsa-44-with-sha512 |  |
| SB_CERT_ALGORITHM_HASH_MLDSA_65_SHA512 | id-hash-ml-dsa-65-with-sha512 |  |
| SB_CERT_ALGORITHM_HASH_MLDSA_87_SHA512 | id-hash-ml-dsa-87-with-sha512 |  |
| SB_CERT_ALGORITHM_MLKEM_512 | id-ml-kem-512 |  |
| SB_CERT_ALGORITHM_MLKEM_768 | id-ml-kem-768 |  |
| SB_CERT_ALGORITHM_MLKEM_1024 | id-ml-kem-1024 |  |

Use the [TLSKeyBits](#PDFVerifier_p_TLSKeyBits), [TLSCurve](#PDFVerifier_p_TLSCurve), and [TLSPublicKeyBytes](#PDFVerifier_p_TLSPublicKeyBytes) properties to get more details about the key the certificate contains.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSServerCertKeyBits Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the length of the public key in bits.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertKeyBits(TLSServerCertIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Returns the length of the public key in bits.

This value indicates the length of the principal cryptographic parameter of the key, such as the length of the RSA modulus or ECDSA field. The key data returned by the [TLSPublicKeyBytes](#PDFVerifier_p_TLSPublicKeyBytes) or [TLSPrivateKeyBytes](#PDFVerifier_p_TLSPrivateKeyBytes) property would typically contain auxiliary values, and therefore be longer.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# TLSServerCertKeyUsage Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates the purposes of the key contained in the certificate, in the form of an OR'ed flag set.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertKeyUsage(TLSServerCertIndex int32) (int32, error)
```

## Default Value

0

## Remarks

Indicates the purposes of the key contained in the certificate, in the form of an OR'ed flag set.

This value is a bit mask of the following values:

|  |  |  |
| --- | --- | --- |
| ckuUnknown | 0x00000 | Unknown key usage |
| ckuDigitalSignature | 0x00001 | Digital signature |
| ckuNonRepudiation | 0x00002 | Non-repudiation |
| ckuKeyEncipherment | 0x00004 | Key encipherment |
| ckuDataEncipherment | 0x00008 | Data encipherment |
| ckuKeyAgreement | 0x00010 | Key agreement |
| ckuKeyCertSign | 0x00020 | Certificate signing |
| ckuCRLSign | 0x00040 | Revocation signing |
| ckuEncipherOnly | 0x00080 | Encipher only |
| ckuDecipherOnly | 0x00100 | Decipher only |
| ckuServerAuthentication | 0x00200 | Server authentication |
| ckuClientAuthentication | 0x00400 | Client authentication |
| ckuCodeSigning | 0x00800 | Code signing |
| ckuEmailProtection | 0x01000 | Email protection |
| ckuTimeStamping | 0x02000 | Timestamping |
| ckuOCSPSigning | 0x04000 | OCSP signing |
| ckuSmartCardLogon | 0x08000 | Smartcard logon |
| ckuKeyPurposeClientAuth | 0x10000 | Kerberos - client authentication |
| ckuKeyPurposeKDC | 0x20000 | Kerberos - KDC |

Set this property before generating the certificate to propagate the key usage flags to the new certificate.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**int32**

# TLSServerCertSelfSigned Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates whether the certificate is self-signed (root) or signed by an external CA.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertSelfSigned(TLSServerCertIndex int32) (bool, error)
```

## Default Value

false

## Remarks

Indicates whether the certificate is self-signed (root) or signed by an external CA.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**bool**

# TLSServerCertSerialNumber Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the certificate's serial number.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertSerialNumber(TLSServerCertIndex int32) ([]byte, error)
```

## Remarks

Returns the certificate's serial number.

The serial number is a binary string that uniquely identifies a certificate among others issued by the same CA. According to the X.509 standard, the (issuer, serial number) pair should be globally unique to facilitate chain building.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# TLSServerCertSigAlgorithm Property ([PDFVerifier](#pdfverifier-component) Component)

Indicates the algorithm that was used by the CA to sign this certificate.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertSigAlgorithm(TLSServerCertIndex int32) (string, error)
```

## Default Value

""

## Remarks

Indicates the algorithm that was used by the CA to sign this certificate.

A signature algorithm typically combines hash and public key algorithms together, such as *sha256WithRSAEncryption* or *ecdsa-with-SHA256*.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSServerCertSubject Property ([PDFVerifier](#pdfverifier-component) Component)

The common name of the certificate holder, typically an individual's name, a URL, an e-mail address, or a company name.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertSubject(TLSServerCertIndex int32) (string, error)
```

## Default Value

""

## Remarks

The common name of the certificate holder, typically an individual's name, a URL, an e-mail address, or a company name. This is part of a larger set of credentials available via [TLSSubjectRDN](#PDFVerifier_p_TLSSubjectRDN).

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSServerCertSubjectRDN Property ([PDFVerifier](#pdfverifier-component) Component)

A list of Property=Value pairs that uniquely identify the certificate holder (subject).

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertSubjectRDN(TLSServerCertIndex int32) (string, error)
```

## Default Value

""

## Remarks

A list of *Property=Value* pairs that uniquely identify the certificate holder (subject).

Depending on the purpose of the certificate and the policies of the CA that issued it, the values included in the subject record may differ drastically and contain business or personal names, web URLs, email addresses, and other data.

Example: */C=US/O=Oranges and Apples, Inc./OU=Accounts Receivable/1.2.3.4.5=Value with unknown OID/CN=Margaret Watkins*.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSServerCertValidFrom Property ([PDFVerifier](#pdfverifier-component) Component)

The time point at which the certificate becomes valid, in UTC.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertValidFrom(TLSServerCertIndex int32) (string, error)
```

## Default Value

""

## Remarks

The time point at which the certificate becomes valid, in UTC.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSServerCertValidTo Property ([PDFVerifier](#pdfverifier-component) Component)

The time point at which the certificate expires, in UTC.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSServerCertValidTo(TLSServerCertIndex int32) (string, error)
```

## Default Value

""

## Remarks

The time point at which the certificate expires, in UTC.

The *TLSServerCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TLSServerCertCount](#tlsservercertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**string**

# TLSAutoValidateCertificates Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies whether server-side TLS certificates should be validated automatically using internal validation rules.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSAutoValidateCertificates() (bool, error)func (obj *PDFVerifier) SetTLSAutoValidateCertificates(value bool) error
```

## Default Value

true

## Remarks

Specifies whether server-side TLS certificates should be validated automatically using internal validation rules.

## Data Type

**bool**

# TLSBaseConfiguration Property ([PDFVerifier](#pdfverifier-component) Component)

Selects the base configuration for the TLS settings.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSBaseConfiguration() (int32, error)func (obj *PDFVerifier) SetTLSBaseConfiguration(value int32) error
```

## Possible Values

```text
0   // Default1   // Compatible2   // ComprehensiveInsecure3   // HighlySecure
```

## Default Value

0

## Remarks

Selects the base configuration for the TLS settings. Several profiles are offered and tuned up for different purposes, such as high security or higher compatibility.

|  |  |  |
| --- | --- | --- |
| stpcDefault | 0 |  |
| stpcCompatible | 1 |  |
| stpcComprehensiveInsecure | 2 |  |
| stpcHighlySecure | 3 |  |

## Data Type

**int32**

# TLSCiphersuites Property ([PDFVerifier](#pdfverifier-component) Component)

A list of ciphersuites separated with commas or semicolons.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSCiphersuites() (string, error)func (obj *PDFVerifier) SetTLSCiphersuites(value string) error
```

## Default Value

""

## Remarks

A list of ciphersuites separated with commas or semicolons. Each ciphersuite in the list may be prefixed with a minus sign (-) to indicate that the ciphersuite should be disabled rather than enabled. Besides the specific ciphersuite modifiers, this property supports the *all* (and *-all*) aliases, allowing all ciphersuites to be blanketly enabled or disabled at once.

Note: the list of ciphersuites provided to this property alters the baseline list of ciphersuites as defined by [TLSBaseConfiguration](#tlsbaseconfiguration-property-pdfverifier-component). Remember to start your ciphersuite string with -all; if you need to only enable a specific fixed set of ciphersuites. The list of supported ciphersuites is provided below:

- NULL_NULL_NULL
- RSA_NULL_MD5
- RSA_NULL_SHA
- RSA_RC4_MD5
- RSA_RC4_SHA
- RSA_RC2_MD5
- RSA_IDEA_MD5
- RSA_IDEA_SHA
- RSA_DES_MD5
- RSA_DES_SHA
- RSA_3DES_MD5
- RSA_3DES_SHA
- RSA_AES128_SHA
- RSA_AES256_SHA
- DH_DSS_DES_SHA
- DH_DSS_3DES_SHA
- DH_DSS_AES128_SHA
- DH_DSS_AES256_SHA
- DH_RSA_DES_SHA
- DH_RSA_3DES_SHA
- DH_RSA_AES128_SHA
- DH_RSA_AES256_SHA
- DHE_DSS_DES_SHA
- DHE_DSS_3DES_SHA
- DHE_DSS_AES128_SHA
- DHE_DSS_AES256_SHA
- DHE_RSA_DES_SHA
- DHE_RSA_3DES_SHA
- DHE_RSA_AES128_SHA
- DHE_RSA_AES256_SHA
- DH_ANON_RC4_MD5
- DH_ANON_DES_SHA
- DH_ANON_3DES_SHA
- DH_ANON_AES128_SHA
- DH_ANON_AES256_SHA
- RSA_RC2_MD5_EXPORT
- RSA_RC4_MD5_EXPORT
- RSA_DES_SHA_EXPORT
- DH_DSS_DES_SHA_EXPORT
- DH_RSA_DES_SHA_EXPORT
- DHE_DSS_DES_SHA_EXPORT
- DHE_RSA_DES_SHA_EXPORT
- DH_ANON_RC4_MD5_EXPORT
- DH_ANON_DES_SHA_EXPORT
- RSA_CAMELLIA128_SHA
- DH_DSS_CAMELLIA128_SHA
- DH_RSA_CAMELLIA128_SHA
- DHE_DSS_CAMELLIA128_SHA
- DHE_RSA_CAMELLIA128_SHA
- DH_ANON_CAMELLIA128_SHA
- RSA_CAMELLIA256_SHA
- DH_DSS_CAMELLIA256_SHA
- DH_RSA_CAMELLIA256_SHA
- DHE_DSS_CAMELLIA256_SHA
- DHE_RSA_CAMELLIA256_SHA
- DH_ANON_CAMELLIA256_SHA
- PSK_RC4_SHA
- PSK_3DES_SHA
- PSK_AES128_SHA
- PSK_AES256_SHA
- DHE_PSK_RC4_SHA
- DHE_PSK_3DES_SHA
- DHE_PSK_AES128_SHA
- DHE_PSK_AES256_SHA
- RSA_PSK_RC4_SHA
- RSA_PSK_3DES_SHA
- RSA_PSK_AES128_SHA
- RSA_PSK_AES256_SHA
- RSA_SEED_SHA
- DH_DSS_SEED_SHA
- DH_RSA_SEED_SHA
- DHE_DSS_SEED_SHA
- DHE_RSA_SEED_SHA
- DH_ANON_SEED_SHA
- SRP_SHA_3DES_SHA
- SRP_SHA_RSA_3DES_SHA
- SRP_SHA_DSS_3DES_SHA
- SRP_SHA_AES128_SHA
- SRP_SHA_RSA_AES128_SHA
- SRP_SHA_DSS_AES128_SHA
- SRP_SHA_AES256_SHA
- SRP_SHA_RSA_AES256_SHA
- SRP_SHA_DSS_AES256_SHA
- ECDH_ECDSA_NULL_SHA
- ECDH_ECDSA_RC4_SHA
- ECDH_ECDSA_3DES_SHA
- ECDH_ECDSA_AES128_SHA
- ECDH_ECDSA_AES256_SHA
- ECDHE_ECDSA_NULL_SHA
- ECDHE_ECDSA_RC4_SHA
- ECDHE_ECDSA_3DES_SHA
- ECDHE_ECDSA_AES128_SHA
- ECDHE_ECDSA_AES256_SHA
- ECDH_RSA_NULL_SHA
- ECDH_RSA_RC4_SHA
- ECDH_RSA_3DES_SHA
- ECDH_RSA_AES128_SHA
- ECDH_RSA_AES256_SHA
- ECDHE_RSA_NULL_SHA
- ECDHE_RSA_RC4_SHA
- ECDHE_RSA_3DES_SHA
- ECDHE_RSA_AES128_SHA
- ECDHE_RSA_AES256_SHA
- ECDH_ANON_NULL_SHA
- ECDH_ANON_RC4_SHA
- ECDH_ANON_3DES_SHA
- ECDH_ANON_AES128_SHA
- ECDH_ANON_AES256_SHA
- RSA_NULL_SHA256
- RSA_AES128_SHA256
- RSA_AES256_SHA256
- DH_DSS_AES128_SHA256
- DH_RSA_AES128_SHA256
- DHE_DSS_AES128_SHA256
- DHE_RSA_AES128_SHA256
- DH_DSS_AES256_SHA256
- DH_RSA_AES256_SHA256
- DHE_DSS_AES256_SHA256
- DHE_RSA_AES256_SHA256
- DH_ANON_AES128_SHA256
- DH_ANON_AES256_SHA256
- RSA_AES128_GCM_SHA256
- RSA_AES256_GCM_SHA384
- DHE_RSA_AES128_GCM_SHA256
- DHE_RSA_AES256_GCM_SHA384
- DH_RSA_AES128_GCM_SHA256
- DH_RSA_AES256_GCM_SHA384
- DHE_DSS_AES128_GCM_SHA256
- DHE_DSS_AES256_GCM_SHA384
- DH_DSS_AES128_GCM_SHA256
- DH_DSS_AES256_GCM_SHA384
- DH_ANON_AES128_GCM_SHA256
- DH_ANON_AES256_GCM_SHA384
- ECDHE_ECDSA_AES128_SHA256
- ECDHE_ECDSA_AES256_SHA384
- ECDH_ECDSA_AES128_SHA256
- ECDH_ECDSA_AES256_SHA384
- ECDHE_RSA_AES128_SHA256
- ECDHE_RSA_AES256_SHA384
- ECDH_RSA_AES128_SHA256
- ECDH_RSA_AES256_SHA384
- ECDHE_ECDSA_AES128_GCM_SHA256
- ECDHE_ECDSA_AES256_GCM_SHA384
- ECDH_ECDSA_AES128_GCM_SHA256
- ECDH_ECDSA_AES256_GCM_SHA384
- ECDHE_RSA_AES128_GCM_SHA256
- ECDHE_RSA_AES256_GCM_SHA384
- ECDH_RSA_AES128_GCM_SHA256
- ECDH_RSA_AES256_GCM_SHA384
- PSK_AES128_GCM_SHA256
- PSK_AES256_GCM_SHA384
- DHE_PSK_AES128_GCM_SHA256
- DHE_PSK_AES256_GCM_SHA384
- RSA_PSK_AES128_GCM_SHA256
- RSA_PSK_AES256_GCM_SHA384
- PSK_AES128_SHA256
- PSK_AES256_SHA384
- PSK_NULL_SHA256
- PSK_NULL_SHA384
- DHE_PSK_AES128_SHA256
- DHE_PSK_AES256_SHA384
- DHE_PSK_NULL_SHA256
- DHE_PSK_NULL_SHA384
- RSA_PSK_AES128_SHA256
- RSA_PSK_AES256_SHA384
- RSA_PSK_NULL_SHA256
- RSA_PSK_NULL_SHA384
- RSA_CAMELLIA128_SHA256
- DH_DSS_CAMELLIA128_SHA256
- DH_RSA_CAMELLIA128_SHA256
- DHE_DSS_CAMELLIA128_SHA256
- DHE_RSA_CAMELLIA128_SHA256
- DH_ANON_CAMELLIA128_SHA256
- RSA_CAMELLIA256_SHA256
- DH_DSS_CAMELLIA256_SHA256
- DH_RSA_CAMELLIA256_SHA256
- DHE_DSS_CAMELLIA256_SHA256
- DHE_RSA_CAMELLIA256_SHA256
- DH_ANON_CAMELLIA256_SHA256
- ECDHE_ECDSA_CAMELLIA128_SHA256
- ECDHE_ECDSA_CAMELLIA256_SHA384
- ECDH_ECDSA_CAMELLIA128_SHA256
- ECDH_ECDSA_CAMELLIA256_SHA384
- ECDHE_RSA_CAMELLIA128_SHA256
- ECDHE_RSA_CAMELLIA256_SHA384
- ECDH_RSA_CAMELLIA128_SHA256
- ECDH_RSA_CAMELLIA256_SHA384
- RSA_CAMELLIA128_GCM_SHA256
- RSA_CAMELLIA256_GCM_SHA384
- DHE_RSA_CAMELLIA128_GCM_SHA256
- DHE_RSA_CAMELLIA256_GCM_SHA384
- DH_RSA_CAMELLIA128_GCM_SHA256
- DH_RSA_CAMELLIA256_GCM_SHA384
- DHE_DSS_CAMELLIA128_GCM_SHA256
- DHE_DSS_CAMELLIA256_GCM_SHA384
- DH_DSS_CAMELLIA128_GCM_SHA256
- DH_DSS_CAMELLIA256_GCM_SHA384
- DH_anon_CAMELLIA128_GCM_SHA256
- DH_anon_CAMELLIA256_GCM_SHA384
- ECDHE_ECDSA_CAMELLIA128_GCM_SHA256
- ECDHE_ECDSA_CAMELLIA256_GCM_SHA384
- ECDH_ECDSA_CAMELLIA128_GCM_SHA256
- ECDH_ECDSA_CAMELLIA256_GCM_SHA384
- ECDHE_RSA_CAMELLIA128_GCM_SHA256
- ECDHE_RSA_CAMELLIA256_GCM_SHA384
- ECDH_RSA_CAMELLIA128_GCM_SHA256
- ECDH_RSA_CAMELLIA256_GCM_SHA384
- PSK_CAMELLIA128_GCM_SHA256
- PSK_CAMELLIA256_GCM_SHA384
- DHE_PSK_CAMELLIA128_GCM_SHA256
- DHE_PSK_CAMELLIA256_GCM_SHA384
- RSA_PSK_CAMELLIA128_GCM_SHA256
- RSA_PSK_CAMELLIA256_GCM_SHA384
- PSK_CAMELLIA128_SHA256
- PSK_CAMELLIA256_SHA384
- DHE_PSK_CAMELLIA128_SHA256
- DHE_PSK_CAMELLIA256_SHA384
- RSA_PSK_CAMELLIA128_SHA256
- RSA_PSK_CAMELLIA256_SHA384
- ECDHE_PSK_CAMELLIA128_SHA256
- ECDHE_PSK_CAMELLIA256_SHA384
- ECDHE_PSK_RC4_SHA
- ECDHE_PSK_3DES_SHA
- ECDHE_PSK_AES128_SHA
- ECDHE_PSK_AES256_SHA
- ECDHE_PSK_AES128_SHA256
- ECDHE_PSK_AES256_SHA384
- ECDHE_PSK_NULL_SHA
- ECDHE_PSK_NULL_SHA256
- ECDHE_PSK_NULL_SHA384
- ECDHE_RSA_CHACHA20_POLY1305_SHA256
- ECDHE_ECDSA_CHACHA20_POLY1305_SHA256
- DHE_RSA_CHACHA20_POLY1305_SHA256
- PSK_CHACHA20_POLY1305_SHA256
- ECDHE_PSK_CHACHA20_POLY1305_SHA256
- DHE_PSK_CHACHA20_POLY1305_SHA256
- RSA_PSK_CHACHA20_POLY1305_SHA256
- AES128_GCM_SHA256
- AES256_GCM_SHA384
- CHACHA20_POLY1305_SHA256
- AES128_CCM_SHA256
- AES128_CCM8_SHA256

## Data Type

**string**

# TLSClientAuth Property ([PDFVerifier](#pdfverifier-component) Component)

Enables or disables certificate-based client authentication.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSClientAuth() (int32, error)func (obj *PDFVerifier) SetTLSClientAuth(value int32) error
```

## Possible Values

```text
0   // NoAuth1   // RequestCert2   // RequireCert
```

## Default Value

0

## Remarks

Enables or disables certificate-based client authentication.

Set this property to true to tune up the client authentication type:

|  |  |  |
| --- | --- | --- |
| ccatNoAuth | 0 |  |
| ccatRequestCert | 1 |  |
| ccatRequireCert | 2 |  |

## Data Type

**int32**

# TLSExtensions Property ([PDFVerifier](#pdfverifier-component) Component)

Provides access to TLS extensions.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSExtensions() (string, error)func (obj *PDFVerifier) SetTLSExtensions(value string) error
```

## Default Value

""

## Remarks

Provides access to TLS extensions.

## Data Type

**string**

# TLSForceResumeIfDestinationChanges Property ([PDFVerifier](#pdfverifier-component) Component)

Whether to force TLS session resumption when the destination address changes.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSForceResumeIfDestinationChanges() (bool, error)func (obj *PDFVerifier) SetTLSForceResumeIfDestinationChanges(value bool) error
```

## Default Value

false

## Remarks

Whether to force TLS session resumption when the destination address changes.

## Data Type

**bool**

# TLSGroups Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies a list of key exchange groups to attempt during the TLS key exchange.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSGroups() (string, error)func (obj *PDFVerifier) SetTLSGroups(value string) error
```

## Default Value

""

## Remarks

Specifies a list of key exchange groups to attempt during the TLS key exchange.

Keep this setting at its default value (empty string) to stick with the default list of key exchange groups. You can tweak the list by using '+' and '-' modifiers that are immediately followed by a group name or the *all* placeholder:

```text
  // Ensure the two x25519-based groups are enabled and the finite field DHE2048 is disabled
  client.TLSSettings.Groups = "+x25519mlkem768;+x25519;-ffdhe2048";

  // Only enable the hybrid X25519/ML-KEM768 group
  client.TLSSettings.Groups = "-all;+x25519mlkem768";
```

The list of groups supported by the component is provided below. All the names are case-insensitive:

**Elliptic curve-based groups:**

- SECT163K1
- SECT163R1
- SECT163R2
- SECT193R1
- SECT193R2
- SECT233K1
- SECT233R1
- SECT239K1
- SECT283K1
- SECT283R1
- SECT409K1
- SECT409R1
- SECT571K1
- SECT571R1
- SECP160K1
- SECP160R1
- SECP160R2
- SECP192K1
- SECP192R1
- SECP224K1
- SECP224R1
- SECP256K1
- SECP256R1
- SECP384R1
- SECP521R1
- BRAINPOOLP256R1
- BRAINPOOLP384R1
- BRAINPOOLP512R1
- X25519
- X448

**Finite field-based groups:**

- FFDHE2048
- FFDHE3072
- FFDHE4096
- FFDHE6144
- FFDHE8192

**Post-Quantum and Hybrid groups:**

- MLKEM512
- MLKEM768
- MLKEM1024
- SECP256R1MLKEM768
- X25519MLKEM768
- SECP384R1MLKEM1024

Note: this property was called *ECCurves* in SecureBlackbox 2024 and older.

## Data Type

**string**

# TLSPreSharedIdentity Property ([PDFVerifier](#pdfverifier-component) Component)

Defines the identity used when the PSK (Pre-Shared Key) key-exchange mechanism is negotiated.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSPreSharedIdentity() (string, error)func (obj *PDFVerifier) SetTLSPreSharedIdentity(value string) error
```

## Default Value

""

## Remarks

Defines the identity used when the PSK (Pre-Shared Key) key-exchange mechanism is negotiated.

## Data Type

**string**

# TLSPreSharedKey Property ([PDFVerifier](#pdfverifier-component) Component)

Contains the pre-shared key for the PSK (Pre-Shared Key) key-exchange mechanism, encoded with base16.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSPreSharedKey() (string, error)func (obj *PDFVerifier) SetTLSPreSharedKey(value string) error
```

## Default Value

""

## Remarks

Contains the pre-shared key for the PSK (Pre-Shared Key) key-exchange mechanism, encoded with base16.

## Data Type

**string**

# TLSPreSharedKeyCiphersuite Property ([PDFVerifier](#pdfverifier-component) Component)

Defines the ciphersuite used for PSK (Pre-Shared Key) negotiation.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSPreSharedKeyCiphersuite() (string, error)func (obj *PDFVerifier) SetTLSPreSharedKeyCiphersuite(value string) error
```

## Default Value

""

## Remarks

Defines the ciphersuite used for PSK (Pre-Shared Key) negotiation.

## Data Type

**string**

# TLSRenegotiationAttackPreventionMode Property ([PDFVerifier](#pdfverifier-component) Component)

Selects the renegotiation attack prevention mechanism.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSRenegotiationAttackPreventionMode() (int32, error)func (obj *PDFVerifier) SetTLSRenegotiationAttackPreventionMode(value int32) error
```

## Possible Values

```text
0   // Compatible1   // Strict2   // Auto
```

## Default Value

2

## Remarks

Selects the renegotiation attack prevention mechanism.

The following options are available:

|  |  |  |
| --- | --- | --- |
| crapmCompatible | 0 | TLS 1.0 and 1.1 compatibility mode (renegotiation indication extension is disabled). |
| crapmStrict | 1 | Renegotiation attack prevention is enabled and enforced. |
| crapmAuto | 2 | Automatically choose whether to enable or disable renegotiation attack prevention. |

## Data Type

**int32**

# TLSRevocationCheck Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the kind(s) of revocation check to perform.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSRevocationCheck() (int32, error)func (obj *PDFVerifier) SetTLSRevocationCheck(value int32) error
```

## Possible Values

```text
0   // None1   // Auto2   // AllCRL3   // AllOCSP4   // AllCRLAndOCSP5   // AnyCRL6   // AnyOCSP7   // AnyCRLOrOCSP8   // AnyOCSPOrCRL
```

## Default Value

1

## Remarks

Specifies the kind(s) of revocation check to perform.

Revocation checking is necessary to ensure the integrity of the chain and obtain up-to-date certificate validity and trustworthiness information.

|  |  |  |
| --- | --- | --- |
| crcNone | 0 | No revocation checking. |
| crcAuto | 1 | Automatic mode selection. Currently this maps to crcAnyOCSPOrCRL, but it may change in the future. |
| crcAllCRL | 2 | All provided CRL endpoints will be checked, and all checks must succeed. |
| crcAllOCSP | 3 | All provided OCSP endpoints will be checked, and all checks must succeed. |
| crcAllCRLAndOCSP | 4 | All provided CRL and OCSP endpoints will be checked, and all checks must succeed. |
| crcAnyCRL | 5 | All provided CRL endpoints will be checked, and at least one check must succeed. |
| crcAnyOCSP | 6 | All provided OCSP endpoints will be checked, and at least one check must succeed. |
| crcAnyCRLOrOCSP | 7 | All provided CRL and OCSP endpoints will be checked, and at least one check must succeed. CRL endpoints are checked first. |
| crcAnyOCSPOrCRL | 8 | All provided CRL and OCSP endpoints will be checked, and at least one check must succeed. OCSP endpoints are checked first. |

This setting controls the way the revocation checks are performed for every certificate in the chain. Typically certificates come with two types of revocation information sources: CRL (certificate revocation lists) and OCSP responders. CRLs are static objects periodically published by the CA at some online location. OCSP responders are active online services maintained by the CA that can provide up-to-date information on certificate statuses in near real time.

There are some conceptual differences between the two. CRLs are normally larger in size. Their use involves some latency because there is normally some delay between the time when a certificate was revoked and the time the subsequent CRL mentioning that is published. The benefits of CRL is that the same object can provide statuses for all certificates issued by a particular CA, and that the whole technology is much simpler than OCSP (and thus is supported by more CAs).

This setting lets you adjust the validation course by including or excluding certain types of revocation sources from the validation process. The crcAnyOCSPOrCRL setting (give preference to the faster OCSP route and only demand one source to succeed) is a good choice for most typical validation environments. The "crcAll*" modes are much stricter, and may be used in scenarios where bulletproof validity information is essential.

NOTE: If no CRL or OCSP endpoints are provided by the CA, the revocation check will be considered successful. This is because the CA chose not to supply revocation information for its certificates, meaning they are considered irrevocable.

NOTE: Within each of the above settings, if any retrieved CRL or OCSP response indicates that the certificate has been revoked, the revocation check fails.

## Data Type

**int32**

# TLSSSLOptions Property ([PDFVerifier](#pdfverifier-component) Component)

Various SSL (TLS) protocol options, set of cssloExpectShutdownMessage 0x001 Wait for the close-notify message when shutting down the connection cssloOpenSSLDTLSWorkaround 0x002 (DEPRECATED) Use a DTLS version workaround when talking to very old OpenSSL versions cssloDisableKexLengthAlignment 0x004 Do not align the client-side PMS by the RSA modulus size.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSSSLOptions() (int32, error)func (obj *PDFVerifier) SetTLSSSLOptions(value int32) error
```

## Default Value

16

## Remarks

Various SSL (TLS) protocol options, set of

|  |  |  |
| --- | --- | --- |
| cssloExpectShutdownMessage | 0x001 | Wait for the close-notify message when shutting down the connection |
| cssloOpenSSLDTLSWorkaround | 0x002 | (DEPRECATED) Use a DTLS version workaround when talking to very old OpenSSL versions |
| cssloDisableKexLengthAlignment | 0x004 | Do not align the client-side PMS by the RSA modulus size. It is unlikely that you will ever need to adjust it. |
| cssloForceUseOfClientCertHashAlg | 0x008 | Enforce the use of the client certificate hash algorithm. It is unlikely that you will ever need to adjust it. |
| cssloAutoAddServerNameExtension | 0x010 | Automatically add the server name extension when known |
| cssloAcceptTrustedSRPPrimesOnly | 0x020 | Accept trusted SRP primes only |
| cssloDisableSignatureAlgorithmsExtension | 0x040 | Disable (do not send) the signature algorithms extension. It is unlikely that you will ever need to adjust it. |
| cssloIntolerateHigherProtocolVersions | 0x080 | (server option) Do not allow fallback from TLS versions higher than currently enabled |
| cssloStickToPrefCertHashAlg | 0x100 | Stick to preferred certificate hash algorithms |
| cssloNoImplicitTLS12Fallback | 0x200 | Disable implicit TLS 1.3 to 1.2 fallbacks |
| cssloUseHandshakeBatches | 0x400 | Send the handshake message as large batches rather than individually |

## Data Type

**int32**

# TLSMode Property ([PDFVerifier](#pdfverifier-component) Component)

Specifies the TLS mode to use.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSMode() (int32, error)func (obj *PDFVerifier) SetTLSMode(value int32) error
```

## Possible Values

```text
0   // Default1   // NoTLS2   // ExplicitTLS3   // ImplicitTLS4   // MixedTLS
```

## Default Value

0

## Remarks

Specifies the TLS mode to use.

|  |  |  |
| --- | --- | --- |
| smDefault | 0 |  |
| smNoTLS | 1 | Do not use TLS |
| smExplicitTLS | 2 | Connect to the server without any encryption and then request an SSL session. |
| smImplicitTLS | 3 | Connect to the specified port, and establish the SSL session at once. |
| smMixedTLS | 4 | Connect to the specified port, and establish the SSL session at once, but allow plain data. |

## Data Type

**int32**

# TLSUseExtendedMasterSecret Property ([PDFVerifier](#pdfverifier-component) Component)

Enables the Extended Master Secret Extension, as defined in RFC 7627.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSUseExtendedMasterSecret() (bool, error)func (obj *PDFVerifier) SetTLSUseExtendedMasterSecret(value bool) error
```

## Default Value

true

## Remarks

Enables the Extended Master Secret Extension, as defined in RFC 7627.

## Data Type

**bool**

# TLSUseSessionResumption Property ([PDFVerifier](#pdfverifier-component) Component)

Enables or disables the TLS session resumption capability.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSUseSessionResumption() (bool, error)func (obj *PDFVerifier) SetTLSUseSessionResumption(value bool) error
```

## Default Value

false

## Remarks

Enables or disables the TLS session resumption capability.

## Data Type

**bool**

# TLSVersions Property ([PDFVerifier](#pdfverifier-component) Component)

The SSL/TLS versions to enable by default.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TLSVersions() (int32, error)func (obj *PDFVerifier) SetTLSVersions(value int32) error
```

## Default Value

48

## Remarks

The SSL/TLS versions to enable by default.

|  |  |  |
| --- | --- | --- |
| csbSSL2 | 0x01 | SSL 2 |
| csbSSL3 | 0x02 | SSL 3 |
| csbTLS1 | 0x04 | TLS 1.0 |
| csbTLS11 | 0x08 | TLS 1.1 |
| csbTLS12 | 0x10 | TLS 1.2 |
| csbTLS13 | 0x20 | TLS 1.3 |

## Data Type

**int32**

# TrustedCertCount Property ([PDFVerifier](#pdfverifier-component) Component)

The number of records in the TrustedCert arrays.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TrustedCertCount() (int32, error)func (obj *PDFVerifier) SetTrustedCertCount(value int32) error
```

## Default Value

0

## Remarks

This property controls the size of the following arrays:

- [TrustedCertBytes](#trustedcertbytes-property-pdfverifier-component)
- [TrustedCertHandle](#trustedcerthandle-property-pdfverifier-component)

The array indices start at *0* and end at *TrustedCertCount - 1*.

## Data Type

**int32**

# TrustedCertBytes Property ([PDFVerifier](#pdfverifier-component) Component)

Returns the raw certificate data in DER format.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TrustedCertBytes(TrustedCertIndex int32) ([]byte, error)
```

## Remarks

Returns the raw certificate data in DER format.

The *TrustedCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TrustedCertCount](#trustedcertcount-property-pdfverifier-component) property.

This property is read-only.

## Data Type

**[]byte**

# TrustedCertHandle Property ([PDFVerifier](#pdfverifier-component) Component)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) TrustedCertHandle(TrustedCertIndex int32) (int64, error)func (obj *PDFVerifier) SetTrustedCertHandle(TrustedCertIndex int32, value int64) error
```

## Default Value

0

## Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation.

```text
  pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
```

The *TrustedCertIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [TrustedCertCount](#trustedcertcount-property-pdfverifier-component) property.

## Data Type

**int64**

# ValidationMoment Property ([PDFVerifier](#pdfverifier-component) Component)

The time point at which signature validity is to be established.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) ValidationMoment() (string, error)func (obj *PDFVerifier) SetValidationMoment(value string) error
```

## Default Value

""

## Remarks

Use this property to specify the moment in time at which signature validity should be established. The time is in UTC. Leave the setting empty to stick to the default moment (either the signature creation time or the current time).

The validity of the same signature may differ depending on the time point chosen due to temporal changes in chain validities, revocation statuses, and timestamp times.

## Data Type

**string**

# Close Method ([PDFVerifier](#pdfverifier-component) Component)

Closes an opened document.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Close(SaveChanges bool) error
```

## Remarks

Use this method to close a previously opened document. The *SaveChanges* parameter is only taken into account if the document was opened in edit mode.

# Config Method ([PDFVerifier](#pdfverifier-component) Component)

Sets or retrieves a configuration setting.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Config(ConfigurationString string) (string, error)
```

## Remarks

Config is a generic method available in every struct. It is used to set and retrieve [configuration settings](#config-settings-pdfverifier-component) for the struct.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the struct, access to these *internal properties* is provided through the Config method.

To set a configuration setting named *PROPERTY*, you must call *Config("PROPERTY=VALUE")*, where *VALUE* is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a [configuration setting](#config-settings-pdfverifier-component), you must call *Config("PROPERTY")*. The value will be returned as a string.

# DoAction Method ([PDFVerifier](#pdfverifier-component) Component)

Performs an additional action.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) DoAction(ActionID string, ActionParams string) (string, error)
```

## Remarks

DoAction is a generic method available in every struct. It is used to perform an additional action introduced after the product major release. The list of actions is not fixed, and may be flexibly extended over time.

The unique identifier (case insensitive) of the action is provided in the *ActionID* parameter.

*ActionParams* contains the value of a single parameter, or a list of multiple parameters for the action in the form of *PARAM1=VALUE1;PARAM2=VALUE2;...*.

Common ActionIDs:

|  |  |  |  |
| --- | --- | --- | --- |
| Action | Parameters | Returned value | Description |
| ResetTrustedListCache | none | none | Clears the cached list of trusted lists. |
| ResetCertificateCache | none | none | Clears the cached certificates. |
| ResetCRLCache | none | none | Clears the cached CRLs. |
| ResetOCSPResponseCache | none | none | Clears the cached OCSP responses. |

# GetAttachedBytes Method ([PDFVerifier](#pdfverifier-component) Component)

Saves a PDF attachment to a byte array.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) GetAttachedBytes(Index int32) ([]byte, error)
```

## Remarks

Use this method to retrieve the contents of an attached file as a byte array.

# GetAttachedFile Method ([PDFVerifier](#pdfverifier-component) Component)

Saves a PDF attachment to a file.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) GetAttachedFile(Index int32, Path string) error
```

## Remarks

Use this method to retrieve the contents of an attached file and save it to a file.

# GetSignedVersion Method ([PDFVerifier](#pdfverifier-component) Component)

Returns the part of the document that is covered by the signature.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) GetSignedVersion(SigLabel string) error
```

## Remarks

Use this method to retrieve the revision of the document that is covered by the *SigLabel* signature.

PDF documents often use the incremental updates approach, with any changes being appended to the document without altering the existing revision. This may lead to situations where a signature only covers a part of the document (one of the past revisions), but not the subsequent changes. This method provides means to extract the revision that is actually certified by the signature.

It is recommended that you use this method when validating signatures to make sure the signature covers what you expect it to cover.

An alternative to this method is to check the  field of the signature object and match it to the document length.

# Open Method ([PDFVerifier](#pdfverifier-component) Component)

Opens a document for verifying or removing signatures.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Open(EditMode bool) error
```

## Remarks

Use this method to open a document for verifying or removing signatures, or for extracting signed content. When finished, call [Close](#close-method-pdfverifier-component) to complete the operation and release any allocated resources.

Set *EditMode* to true to open the document in edit mode (only useful if you intend to remove signatures).

# Reset Method ([PDFVerifier](#pdfverifier-component) Component)

Resets the class settings.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Reset() error
```

## Remarks

Reset is a generic method available in every struct.

# Revalidate Method ([PDFVerifier](#pdfverifier-component) Component)

Revalidates a signature in accordance with current settings.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Revalidate(SigLabel string) error
```

## Remarks

Use this method to revalidate a signature in the opened PDF document.

# SelectInfo Method ([PDFVerifier](#pdfverifier-component) Component)

Select signature information for a specific entity.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) SelectInfo(EntityLabel string, InfoType int32, ClearSelection bool) error
```

## Remarks

Use this method to select (or filter) signature-related information for a specific signature element.

Provide the unique label of the entity that you are interested in via the *EntityLabel* parameter. Use one of the following filters, or their combination, to specify what information you are interested in:

|  |  |  |
| --- | --- | --- |
| sitEntity | 1 | Select the current entity |
| sitParentEntity | 2 | Select the parent entity of the current entity |
| sitTimestamps | 4 | Select all timestamps covering the current entity |
| sitSignatures | 8 | Select all signatures covering the current entity |
| sitSigningChain | 16 | Select the signing chain of the current entity |
| sitEmbeddedCertificates | 256 | Select all certificates embedded in the current entity |
| sitEmbeddedCRLs | 512 | Select all CRLs embedded in the current entity |
| sitEmbeddedOCSPs | 1024 | Select all OCSP responses embedded in the current entity |
| sitEmbeddedRevInfo | 1792 | Select the whole pack of embedded revocation information (certificates, CRLs and OCSPs) |
| sitUsedCertificates | 4096 | Select all the certificates used to validate this entity's chain |
| sitUsedCRLs | 8192 | Select all the CRLs used to validate this entity's chain |
| sitUsedOCSPs | 16384 | Select all the OCSP responses used to validate this entity's chain |
| sitUsedRevInfo | 28672 | Select the whole pack of revocation information used to validate this entity's chain (certificates, CRLs, OCSP responses) |
| sitAttributes | 65536 | Select this entity's CMS attributes |
| sitReferences | 131072 | Select this entity's XML references |
| sitSignedParts | 262144 | Select this entity's signed parts |

Following the call, the relevant pieces of information will be copied to the respective component properties (Certificates, CRLs, OCSPs). Note that you can accumulate information in the properties by making repeated calls to SelectInfo and keeping *ClearSelection* set to false.

This method is useful if you would like to read/display detailed information about a particular signature or timestamp.

# Unsign Method ([PDFVerifier](#pdfverifier-component) Component)

Deletes a signature from the document.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Unsign(SigLabel string, UnsignKind int32) error
```

## Remarks

Use this method to delete an existing signature from the document. Use the *SigLabel* parameter to specify the signature to be removed.

Unsigning is different from [GetSignedVersion](#getsignedversion-method-pdfverifier-component). The latter returns the revision of the document *including* the mentioned signature (thus removing anything added after that signature was created). Unsign removes the signature completely by carving it out of the document.

For multi-signature documents, the Unsign method removes the signature by marking its objects as removed in a new incremental update. A deleted signature might be present in the signature panel in Adobe as the deleted signature. If, for example, in the multi-signature document the last signature should be removed without any trace of the last signature, then [GetSignedVersion](#getsignedversion-method-pdfverifier-component) method should be used.

The following unsign kinds are currently supported:

|  |  |
| --- | --- |
| uskDefault (0) | The default option. |
| uskFull (1) | Remove the signature fully. This is also the default option. |
| uskKeepField (2) | Only remove the signature, but keep the form field it is in. |
| uskKeepAppearance (3) | Remove the signature, but keep the form field and its widget. |

Note: *SigLabel* set to "" removes all signatures in the document.

# Verify Method ([PDFVerifier](#pdfverifier-component) Component)

Verifies a signed PDF document.

## Syntax

*Go Syntax*

```text
func (obj *PDFVerifier) Verify() error
```

## Remarks

Use this method to validate all signatures in a PDF document.

This method walks through a signed document and reports every signature via the [SignatureFound](#signaturefound-event-pdfverifier-component) event. Subscribe to the event to be notified about the signatures and adjust validation settings on the fly.

Upon completion of this method, the signature details will be published in the Signatures property.

This method only validates the signatures, but does not check their coverage. It is a good idea to use mechanisms such as [GetSignedVersion](#getsignedversion-method-pdfverifier-component) or  to ensure that the signature covers the expected document revision.

# ChainElementDownload Event ([PDFVerifier](#pdfverifier-component) Component)

Fires when there is a need to download a chain element from an online source.

## Syntax

*Go Syntax*

```text
// PDFVerifierChainElementDownloadEventArgs carries the PDFVerifier ChainElementDownload event's parameters.
type PDFVerifierChainElementDownloadEventArgs struct {...}

func (args *PDFVerifierChainElementDownloadEventArgs) Kind() int32
func (args *PDFVerifierChainElementDownloadEventArgs) CertRDN() string
func (args *PDFVerifierChainElementDownloadEventArgs) CACertRDN() string
func (args *PDFVerifierChainElementDownloadEventArgs) Location() string
func (args *PDFVerifierChainElementDownloadEventArgs) Action() int32
func (args *PDFVerifierChainElementDownloadEventArgs) SetAction(value int32)

// PDFVerifierChainElementDownloadEvent defines the signature of the PDFVerifier ChainElementDownload event's handler function.
type PDFVerifierChainElementDownloadEvent func(sender *PDFVerifier, args *PDFVerifierChainElementDownloadEventArgs)

func (obj *PDFVerifier) GetOnChainElementDownloadHandler() PDFVerifierChainElementDownloadEvent
func (obj *PDFVerifier) SetOnChainElementDownloadHandler(handlerFunc PDFVerifierChainElementDownloadEvent)
```

## Remarks

Subscribe to this event to be notified about validation element retrievals. Use the *Action* parameter to suppress the download if required.

|  |  |  |
| --- | --- | --- |
| veaAuto | 0 | Handle the action automatically (the default behaviour) |
| veaContinue | 1 | Accept the request implied by the event (accept the certificate, allow the object retrieval) |
| veaReject | 2 | Reject the request implied by the event (reject the certificate, disallow the object retrieval) |
| veaAcceptNow | 3 | Accept the validated certificate immediately |
| veaAbortNow | 4 | Abort the validation, reject the certificate |

|  |  |  |
| --- | --- | --- |
| cekUnknown | 0 | Unknown or unsupported element type |
| cekCertificate | 1 | An X.509 certificate |
| cekCRL | 2 | A CRL |
| cekOCSP | 3 | An OCSP response |

# ChainElementNeeded Event ([PDFVerifier](#pdfverifier-component) Component)

Fires when an element required to validate the chain was not located.

## Syntax

*Go Syntax*

```text
// PDFVerifierChainElementNeededEventArgs carries the PDFVerifier ChainElementNeeded event's parameters.
type PDFVerifierChainElementNeededEventArgs struct {...}

func (args *PDFVerifierChainElementNeededEventArgs) Kind() int32
func (args *PDFVerifierChainElementNeededEventArgs) CertRDN() string
func (args *PDFVerifierChainElementNeededEventArgs) CACertRDN() string
// PDFVerifierChainElementNeededEvent defines the signature of the PDFVerifier ChainElementNeeded event's handler function.
type PDFVerifierChainElementNeededEvent func(sender *PDFVerifier, args *PDFVerifierChainElementNeededEventArgs)

func (obj *PDFVerifier) GetOnChainElementNeededHandler() PDFVerifierChainElementNeededEvent
func (obj *PDFVerifier) SetOnChainElementNeededHandler(handlerFunc PDFVerifierChainElementNeededEvent)
```

## Remarks

Subscribe to this event to be notified about missing validation elements. Use the KnownCRLs, KnownCertificates, and KnownOCSPs properties in the event handler to provide the missing piece.

|  |  |  |
| --- | --- | --- |
| cekUnknown | 0 | Unknown or unsupported element type |
| cekCertificate | 1 | An X.509 certificate |
| cekCRL | 2 | A CRL |
| cekOCSP | 3 | An OCSP response |

# ChainValidated Event ([PDFVerifier](#pdfverifier-component) Component)

Reports the completion of a certificate chain validation.

## Syntax

*Go Syntax*

```text
// PDFVerifierChainValidatedEventArgs carries the PDFVerifier ChainValidated event's parameters.
type PDFVerifierChainValidatedEventArgs struct {...}

func (args *PDFVerifierChainValidatedEventArgs) Index() int32
func (args *PDFVerifierChainValidatedEventArgs) EntityLabel() string
func (args *PDFVerifierChainValidatedEventArgs) SubjectRDN() string
func (args *PDFVerifierChainValidatedEventArgs) ValidationResult() int32
func (args *PDFVerifierChainValidatedEventArgs) ValidationDetails() int32
func (args *PDFVerifierChainValidatedEventArgs) Cancel() bool
func (args *PDFVerifierChainValidatedEventArgs) SetCancel(value bool)

// PDFVerifierChainValidatedEvent defines the signature of the PDFVerifier ChainValidated event's handler function.
type PDFVerifierChainValidatedEvent func(sender *PDFVerifier, args *PDFVerifierChainValidatedEventArgs)

func (obj *PDFVerifier) GetOnChainValidatedHandler() PDFVerifierChainValidatedEvent
func (obj *PDFVerifier) SetOnChainValidatedHandler(handlerFunc PDFVerifierChainValidatedEvent)
```

## Remarks

This event is fired when a certificate chain validation routine completes. *SubjectRDN* identifies the owner of the validated certificate.

*ValidationResult* set to 0 (zero) indicates successful chain validation.

|  |  |  |
| --- | --- | --- |
| cvtValid | 0 | The chain is valid |
| cvtValidButUntrusted | 1 | The chain is valid, but the root certificate is not trusted |
| cvtInvalid | 2 | The chain is not valid (some of certificates are revoked, expired, or contain an invalid signature) |
| cvtCantBeEstablished | 3 | The validity of the chain cannot be established because of missing or unavailable validation information (certificates, CRLs, or OCSP responses) |

 Any other value reports a failure, and *ValidationDetails* provides more details on its reasons.

|  |  |  |
| --- | --- | --- |
| cvrBadData | 0x0001 | One or more certificates in the validation path are malformed |
| cvrRevoked | 0x0002 | One or more certificates are revoked |
| cvrNotYetValid | 0x0004 | One or more certificates are not yet valid |
| cvrExpired | 0x0008 | One or more certificates are expired |
| cvrInvalidSignature | 0x0010 | A certificate contains a non-valid digital signature |
| cvrUnknownCA | 0x0020 | A CA certificate for one or more certificates has not been found (chain incomplete) |
| cvrCAUnauthorized | 0x0040 | One of the CA certificates are not authorized to act as CA |
| cvrCRLNotVerified | 0x0080 | One or more CRLs could not be verified |
| cvrOCSPNotVerified | 0x0100 | One or more OCSP responses could not be verified |
| cvrIdentityMismatch | 0x0200 | The identity protected by the certificate (a TLS endpoint or an e-mail addressee) does not match what is recorded in the certificate |
| cvrNoKeyUsage | 0x0400 | A mandatory key usage is not enabled in one of the chain certificates |
| cvrBlocked | 0x0800 | One or more certificates are blocked |
| cvrFailure | 0x1000 | General validation failure |
| cvrChainLoop | 0x2000 | Chain loop: one of the CA certificates recursively signs itself |
| cvrWeakAlgorithm | 0x4000 | A weak algorithm is used in one of certificates or revocation elements |
| cvrUserEnforced | 0x8000 | The chain was considered invalid following intervention from a user code |

# ChainValidationProgress Event ([PDFVerifier](#pdfverifier-component) Component)

This event is fired multiple times during chain validation to report various stages of the validation procedure.

## Syntax

*Go Syntax*

```text
// PDFVerifierChainValidationProgressEventArgs carries the PDFVerifier ChainValidationProgress event's parameters.
type PDFVerifierChainValidationProgressEventArgs struct {...}

func (args *PDFVerifierChainValidationProgressEventArgs) EventKind() string
func (args *PDFVerifierChainValidationProgressEventArgs) CertRDN() string
func (args *PDFVerifierChainValidationProgressEventArgs) CACertRDN() string
func (args *PDFVerifierChainValidationProgressEventArgs) Action() int32
func (args *PDFVerifierChainValidationProgressEventArgs) SetAction(value int32)

// PDFVerifierChainValidationProgressEvent defines the signature of the PDFVerifier ChainValidationProgress event's handler function.
type PDFVerifierChainValidationProgressEvent func(sender *PDFVerifier, args *PDFVerifierChainValidationProgressEventArgs)

func (obj *PDFVerifier) GetOnChainValidationProgressHandler() PDFVerifierChainValidationProgressEvent
func (obj *PDFVerifier) SetOnChainValidationProgressHandler(handlerFunc PDFVerifierChainValidationProgressEvent)
```

## Remarks

Subscribe to this event to be notified about chain validation progress. Use the *Action* parameter to alter the validation flow.

The *EventKind* parameter reports the nature of the event being reported. The *CertRDN* and *CACertRDN* parameters report the distinguished names of the certificates that are relevant for the event invocation (one or both can be empty, depending on *EventKind*). Use the *Action* parameter to adjust the validation flow.

|  |  |  |
| --- | --- | --- |
| veaAuto | 0 | Handle the action automatically (the default behaviour) |
| veaContinue | 1 | Accept the request implied by the event (accept the certificate, allow the object retrieval) |
| veaReject | 2 | Reject the request implied by the event (reject the certificate, disallow the object retrieval) |
| veaAcceptNow | 3 | Accept the validated certificate immediately |
| veaAbortNow | 4 | Abort the validation, reject the certificate |

# DocumentLoaded Event ([PDFVerifier](#pdfverifier-component) Component)

This event is fired when the document has been loaded into memory.

## Syntax

*Go Syntax*

```text
// PDFVerifierDocumentLoadedEventArgs carries the PDFVerifier DocumentLoaded event's parameters.
type PDFVerifierDocumentLoadedEventArgs struct {...}

func (args *PDFVerifierDocumentLoadedEventArgs) Cancel() bool
func (args *PDFVerifierDocumentLoadedEventArgs) SetCancel(value bool)

// PDFVerifierDocumentLoadedEvent defines the signature of the PDFVerifier DocumentLoaded event's handler function.
type PDFVerifierDocumentLoadedEvent func(sender *PDFVerifier, args *PDFVerifierDocumentLoadedEventArgs)

func (obj *PDFVerifier) GetOnDocumentLoadedHandler() PDFVerifierDocumentLoadedEvent
func (obj *PDFVerifier) SetOnDocumentLoadedHandler(handlerFunc PDFVerifierDocumentLoadedEvent)
```

## Remarks

The handler for this event is a good place to check the document structure, which may be useful when preparing the signature. For example, you can use the Pages information to find the optimal position for the signature widget.

Set *Cancel* to true to terminate document processing on this stage.

# Encrypted Event ([PDFVerifier](#pdfverifier-component) Component)

Notifies the application that the document is encrypted and provides recipient certificate details if asymmetric encryption was used to encrypt the document.

## Syntax

*Go Syntax*

```text
// PDFVerifierEncryptedEventArgs carries the PDFVerifier Encrypted event's parameters.
type PDFVerifierEncryptedEventArgs struct {...}

func (args *PDFVerifierEncryptedEventArgs) CertUsed() bool
func (args *PDFVerifierEncryptedEventArgs) IssuerRDN() string
func (args *PDFVerifierEncryptedEventArgs) SerialNumber() []byte
func (args *PDFVerifierEncryptedEventArgs) SubjectKeyID() []byte
func (args *PDFVerifierEncryptedEventArgs) NeedCredential() bool
func (args *PDFVerifierEncryptedEventArgs) SkipThis() bool
func (args *PDFVerifierEncryptedEventArgs) SetSkipThis(value bool)

// PDFVerifierEncryptedEvent defines the signature of the PDFVerifier Encrypted event's handler function.
type PDFVerifierEncryptedEvent func(sender *PDFVerifier, args *PDFVerifierEncryptedEventArgs)

func (obj *PDFVerifier) GetOnEncryptedHandler() PDFVerifierEncryptedEvent
func (obj *PDFVerifier) SetOnEncryptedHandler(handlerFunc PDFVerifierEncryptedEvent)
```

## Remarks

The struct fires this event when processing encrypted documents to report the fact of encryption and pass certificate parameters to the user.

This event fires repeatedly for each encryption mechanism used in the document until the user provides the correct credential via the DecryptionCertificate or [Password](#password-property-pdfverifier-component) property (depending on the encryption method used), or sets *SkipThis* to true.

The *CertUsed* parameter specifies the encryption method used. If set to true, it indicates that the document uses asymmetric (certificate-based) encryption. In that case, the *IssuerRDN*, *SerialNumber*, and *SubjectKeyID* parameters provide the details of the encryption certificate. Note that the document can be encrypted with more than one certificate (or have "more than one recipient"), in which case each certificate will invoke its own Encrypted event loop.

*CertUsed* set to false indicates that the document uses password encryption. In this case, provide the password via the [Password](#password-property-pdfverifier-component) property.

The *NeedCredential* parameter specifies whether the correct credential is already available to the struct or still needs to be set. One example where *NeedCredential* would be set to false is where it had been provided by the application prior to processing the document (e.g. by setting the [Password](#password-property-pdfverifier-component) property to a known pre-defined value). If *NeedCredential* is set to true, you must provide the valid credential for the decryption process to succeed.

# Error Event ([PDFVerifier](#pdfverifier-component) Component)

Information about errors during signing/validation.

## Syntax

*Go Syntax*

```text
// PDFVerifierErrorEventArgs carries the PDFVerifier Error event's parameters.
type PDFVerifierErrorEventArgs struct {...}

func (args *PDFVerifierErrorEventArgs) ErrorCode() int32
func (args *PDFVerifierErrorEventArgs) Description() string
// PDFVerifierErrorEvent defines the signature of the PDFVerifier Error event's handler function.
type PDFVerifierErrorEvent func(sender *PDFVerifier, args *PDFVerifierErrorEventArgs)

func (obj *PDFVerifier) GetOnErrorHandler() PDFVerifierErrorEvent
func (obj *PDFVerifier) SetOnErrorHandler(handlerFunc PDFVerifierErrorEvent)
```

## Remarks

The event is fired in case of exceptional conditions during PDF processing.

*ErrorCode* contains an error code and *Description* contains a textual description of the error.

# Notification Event ([PDFVerifier](#pdfverifier-component) Component)

This event notifies the application about an underlying control flow event.

## Syntax

*Go Syntax*

```text
// PDFVerifierNotificationEventArgs carries the PDFVerifier Notification event's parameters.
type PDFVerifierNotificationEventArgs struct {...}

func (args *PDFVerifierNotificationEventArgs) EventID() string
func (args *PDFVerifierNotificationEventArgs) EventParam() string
// PDFVerifierNotificationEvent defines the signature of the PDFVerifier Notification event's handler function.
type PDFVerifierNotificationEvent func(sender *PDFVerifier, args *PDFVerifierNotificationEventArgs)

func (obj *PDFVerifier) GetOnNotificationHandler() PDFVerifierNotificationEvent
func (obj *PDFVerifier) SetOnNotificationHandler(handlerFunc PDFVerifierNotificationEvent)
```

## Remarks

The struct fires this event to let the application know about some event, occurrence, or milestone in the struct. For example, it may fire to report completion of the document processing. The list of events being reported is not fixed, and may be flexibly extended over time.

The unique identifier of the event is provided in the *EventID* parameter. *EventParam* contains any parameters accompanying the occurrence. Depending on the type of the struct, the exact action it is performing, or the document being processed, one or both may be omitted.

This struct can fire this event with the following *EventID* values:

|  |  |
| --- | --- |
| DocumentLoaded | Notifies the application that the document has been loaded. This is a backward-compatibility-only notification. Use OnDocumentLoaded event instead. |
| SignaturesLoaded | Notifies the application that the component has finished loading signatures. |
| BeforeTimestamp | This event is fired before a timestamp is requested from the timestamping authority. Use the event handler to modify TSA and HTTP settings. |
| TimestampError | This event is only fired if the struct failed to obtain a timestamp from the timestamping authority. The EventParam parameter contains extended error info. |
| TimestampRequest | A timestamp is requested from the custom timestamping authority. This event is only fired if TimestampServer was set to a virtual:// URI. The EventParam parameter contains the TSP request (or the plain hash, depending on the value provided to TimestampServer), in base16, that needs to be sent to the TSA. Use the event handler to send the request to the TSA. Upon receiving the response, assign it, in base16, to the TimestampResponse configuration property. |

# SignatureFound Event ([PDFVerifier](#pdfverifier-component) Component)

Signifies the start of signature validation.

## Syntax

*Go Syntax*

```text
// PDFVerifierSignatureFoundEventArgs carries the PDFVerifier SignatureFound event's parameters.
type PDFVerifierSignatureFoundEventArgs struct {...}

func (args *PDFVerifierSignatureFoundEventArgs) Index() int32
func (args *PDFVerifierSignatureFoundEventArgs) EntityLabel() string
func (args *PDFVerifierSignatureFoundEventArgs) IssuerRDN() string
func (args *PDFVerifierSignatureFoundEventArgs) SerialNumber() []byte
func (args *PDFVerifierSignatureFoundEventArgs) SubjectKeyID() []byte
func (args *PDFVerifierSignatureFoundEventArgs) CertFound() bool
func (args *PDFVerifierSignatureFoundEventArgs) ValidateSignature() bool
func (args *PDFVerifierSignatureFoundEventArgs) SetValidateSignature(value bool)

func (args *PDFVerifierSignatureFoundEventArgs) ValidateChain() bool
func (args *PDFVerifierSignatureFoundEventArgs) SetValidateChain(value bool)

// PDFVerifierSignatureFoundEvent defines the signature of the PDFVerifier SignatureFound event's handler function.
type PDFVerifierSignatureFoundEvent func(sender *PDFVerifier, args *PDFVerifierSignatureFoundEventArgs)

func (obj *PDFVerifier) GetOnSignatureFoundHandler() PDFVerifierSignatureFoundEvent
func (obj *PDFVerifier) SetOnSignatureFoundHandler(handlerFunc PDFVerifierSignatureFoundEvent)
```

## Remarks

This event tells the application that signature validation is about to start, and provides the details about the signer's certificate via its *IssuerRDN*, *SerialNumber*, and *SubjectKeyID* parameters. It fires for every signature located in the verified document or message.

The *CertFound* parameter is set to True if the struct has found the needed certificate in one of the known locations, and to False otherwise, in which case you must provide it manually via the KnownCertificates property.

Signature validation consists of two independent stages: cryptographic signature validation and chain validation. Separate validation results are reported for each, with the  and  properties respectively.

Use the *ValidateSignature* and *ValidateChain* parameters to tell the verifier which stages to include in the validation.

# SignatureValidated Event ([PDFVerifier](#pdfverifier-component) Component)

Marks the completion of the signature validation routine.

## Syntax

*Go Syntax*

```text
// PDFVerifierSignatureValidatedEventArgs carries the PDFVerifier SignatureValidated event's parameters.
type PDFVerifierSignatureValidatedEventArgs struct {...}

func (args *PDFVerifierSignatureValidatedEventArgs) Index() int32
func (args *PDFVerifierSignatureValidatedEventArgs) EntityLabel() string
func (args *PDFVerifierSignatureValidatedEventArgs) IssuerRDN() string
func (args *PDFVerifierSignatureValidatedEventArgs) SerialNumber() []byte
func (args *PDFVerifierSignatureValidatedEventArgs) SubjectKeyID() []byte
func (args *PDFVerifierSignatureValidatedEventArgs) ValidationResult() int32
func (args *PDFVerifierSignatureValidatedEventArgs) Cancel() bool
func (args *PDFVerifierSignatureValidatedEventArgs) SetCancel(value bool)

// PDFVerifierSignatureValidatedEvent defines the signature of the PDFVerifier SignatureValidated event's handler function.
type PDFVerifierSignatureValidatedEvent func(sender *PDFVerifier, args *PDFVerifierSignatureValidatedEventArgs)

func (obj *PDFVerifier) GetOnSignatureValidatedHandler() PDFVerifierSignatureValidatedEvent
func (obj *PDFVerifier) SetOnSignatureValidatedHandler(handlerFunc PDFVerifierSignatureValidatedEvent)
```

## Remarks

This event is fired upon the completion of the signature validation routine, and reports the respective validation result.

Use the *IssuerRDN*, *SerialNumber*, and/or *SubjectKeyID* parameters to identify the signing certificate.

*ValidationResult* is set to 0 if the validation has been successful, or to a non-zero value in case of a validation failure.

|  |  |  |
| --- | --- | --- |
| svtValid | 0 | The signature is valid |
| svtUnknown | 1 | Signature validity is unknown |
| svtCorrupted | 2 | The signature is corrupted |
| svtSignerNotFound | 3 | Failed to acquire the signing certificate. The signature cannot be validated. |
| svtFailure | 4 | General failure |
| svtReferenceCorrupted | 5 | Reference corrupted (XML-based signatures only) |

# TimestampFound Event ([PDFVerifier](#pdfverifier-component) Component)

Signifies the start of a timestamp validation routine.

## Syntax

*Go Syntax*

```text
// PDFVerifierTimestampFoundEventArgs carries the PDFVerifier TimestampFound event's parameters.
type PDFVerifierTimestampFoundEventArgs struct {...}

func (args *PDFVerifierTimestampFoundEventArgs) Index() int32
func (args *PDFVerifierTimestampFoundEventArgs) EntityLabel() string
func (args *PDFVerifierTimestampFoundEventArgs) IssuerRDN() string
func (args *PDFVerifierTimestampFoundEventArgs) SerialNumber() []byte
func (args *PDFVerifierTimestampFoundEventArgs) SubjectKeyID() []byte
func (args *PDFVerifierTimestampFoundEventArgs) CertFound() bool
func (args *PDFVerifierTimestampFoundEventArgs) ValidateTimestamp() bool
func (args *PDFVerifierTimestampFoundEventArgs) SetValidateTimestamp(value bool)

func (args *PDFVerifierTimestampFoundEventArgs) ValidateChain() bool
func (args *PDFVerifierTimestampFoundEventArgs) SetValidateChain(value bool)

// PDFVerifierTimestampFoundEvent defines the signature of the PDFVerifier TimestampFound event's handler function.
type PDFVerifierTimestampFoundEvent func(sender *PDFVerifier, args *PDFVerifierTimestampFoundEventArgs)

func (obj *PDFVerifier) GetOnTimestampFoundHandler() PDFVerifierTimestampFoundEvent
func (obj *PDFVerifier) SetOnTimestampFoundHandler(handlerFunc PDFVerifierTimestampFoundEvent)
```

## Remarks

This event fires for every timestamp identified during signature processing, and reports the details about the signer's certificate via its *IssuerRDN*, *SerialNumber*, and *SubjectKeyID* parameters.

The *CertFound* parameter is set to True if the struct has found the needed certificate in one of the known locations, and to False otherwise, in which case you must provide it manually via the KnownCertificates property.

Just like with signature validation, timestamp validation consists of two independent stages: cryptographic signature validation and chain validation. Separate validation results are reported for each, with the  and  properties respectively.

Use the *ValidateSignature* and *ValidateChain* parameters to tell the verifier which stages to include in the validation.

# TimestampValidated Event ([PDFVerifier](#pdfverifier-component) Component)

Reports the completion of the timestamp validation routine.

## Syntax

*Go Syntax*

```text
// PDFVerifierTimestampValidatedEventArgs carries the PDFVerifier TimestampValidated event's parameters.
type PDFVerifierTimestampValidatedEventArgs struct {...}

func (args *PDFVerifierTimestampValidatedEventArgs) Index() int32
func (args *PDFVerifierTimestampValidatedEventArgs) EntityLabel() string
func (args *PDFVerifierTimestampValidatedEventArgs) IssuerRDN() string
func (args *PDFVerifierTimestampValidatedEventArgs) SerialNumber() []byte
func (args *PDFVerifierTimestampValidatedEventArgs) SubjectKeyID() []byte
func (args *PDFVerifierTimestampValidatedEventArgs) Time() string
func (args *PDFVerifierTimestampValidatedEventArgs) ValidationResult() int32
func (args *PDFVerifierTimestampValidatedEventArgs) ChainValidationResult() int32
func (args *PDFVerifierTimestampValidatedEventArgs) ChainValidationDetails() int32
func (args *PDFVerifierTimestampValidatedEventArgs) Cancel() bool
func (args *PDFVerifierTimestampValidatedEventArgs) SetCancel(value bool)

// PDFVerifierTimestampValidatedEvent defines the signature of the PDFVerifier TimestampValidated event's handler function.
type PDFVerifierTimestampValidatedEvent func(sender *PDFVerifier, args *PDFVerifierTimestampValidatedEventArgs)

func (obj *PDFVerifier) GetOnTimestampValidatedHandler() PDFVerifierTimestampValidatedEvent
func (obj *PDFVerifier) SetOnTimestampValidatedHandler(handlerFunc PDFVerifierTimestampValidatedEvent)
```

## Remarks

This event is fired upon the completion of the timestamp validation routine, and reports the respective validation result.

*ValidationResult* is set to 0 if the validation has been successful, or to a non-zero value in case of a failure.

|  |  |  |
| --- | --- | --- |
| svtValid | 0 | The signature is valid |
| svtUnknown | 1 | Signature validity is unknown |
| svtCorrupted | 2 | The signature is corrupted |
| svtSignerNotFound | 3 | Failed to acquire the signing certificate. The signature cannot be validated. |
| svtFailure | 4 | General failure |
| svtReferenceCorrupted | 5 | Reference corrupted (XML-based signatures only) |

# TLSCertNeeded Event ([PDFVerifier](#pdfverifier-component) Component)

Fires when a remote TLS party requests a client certificate.

## Syntax

*Go Syntax*

```text
// PDFVerifierTLSCertNeededEventArgs carries the PDFVerifier TLSCertNeeded event's parameters.
type PDFVerifierTLSCertNeededEventArgs struct {...}

func (args *PDFVerifierTLSCertNeededEventArgs) Host() string
func (args *PDFVerifierTLSCertNeededEventArgs) CANames() string
// PDFVerifierTLSCertNeededEvent defines the signature of the PDFVerifier TLSCertNeeded event's handler function.
type PDFVerifierTLSCertNeededEvent func(sender *PDFVerifier, args *PDFVerifierTLSCertNeededEventArgs)

func (obj *PDFVerifier) GetOnTLSCertNeededHandler() PDFVerifierTLSCertNeededEvent
func (obj *PDFVerifier) SetOnTLSCertNeededHandler(handlerFunc PDFVerifierTLSCertNeededEvent)
```

## Remarks

This event fires to notify the implementation that a remote TLS server has requested a client certificate. The *Host* parameter identifies the host that makes a request, and the *CANames* parameter (optional, according to the TLS spec) advises on the accepted issuing CAs.

Use the TLSClientChain property in response to this event to provide the requested certificate. Please make sure the client certificate includes the associated private key. Note that you may set the certificates before the connection without waiting for this event to fire.

This event is preceded by the [TLSHandshake](#tlshandshake-event-pdfverifier-component) event for the given host and, if the certificate was accepted, succeeded by the [TLSEstablished](#tlsestablished-event-pdfverifier-component) event.

# TLSCertValidate Event ([PDFVerifier](#pdfverifier-component) Component)

This event is fired upon receipt of the TLS server's certificate, allowing the user to control its acceptance.

## Syntax

*Go Syntax*

```text
// PDFVerifierTLSCertValidateEventArgs carries the PDFVerifier TLSCertValidate event's parameters.
type PDFVerifierTLSCertValidateEventArgs struct {...}

func (args *PDFVerifierTLSCertValidateEventArgs) ServerHost() string
func (args *PDFVerifierTLSCertValidateEventArgs) ServerIP() string
func (args *PDFVerifierTLSCertValidateEventArgs) Accept() bool
func (args *PDFVerifierTLSCertValidateEventArgs) SetAccept(value bool)

// PDFVerifierTLSCertValidateEvent defines the signature of the PDFVerifier TLSCertValidate event's handler function.
type PDFVerifierTLSCertValidateEvent func(sender *PDFVerifier, args *PDFVerifierTLSCertValidateEventArgs)

func (obj *PDFVerifier) GetOnTLSCertValidateHandler() PDFVerifierTLSCertValidateEvent
func (obj *PDFVerifier) SetOnTLSCertValidateHandler(handlerFunc PDFVerifierTLSCertValidateEvent)
```

## Remarks

This event is fired during a TLS handshake. Use the TLSServerChain property to access the certificate chain. In general, structs may contact a number of TLS endpoints during their work, depending on their configuration.

*Accept* is assigned in accordance with the outcome of the internal validation check performed by the struct, and can be adjusted if needed.

# TLSEstablished Event ([PDFVerifier](#pdfverifier-component) Component)

Fires when a TLS handshake with Host successfully completes.

## Syntax

*Go Syntax*

```text
// PDFVerifierTLSEstablishedEventArgs carries the PDFVerifier TLSEstablished event's parameters.
type PDFVerifierTLSEstablishedEventArgs struct {...}

func (args *PDFVerifierTLSEstablishedEventArgs) Host() string
func (args *PDFVerifierTLSEstablishedEventArgs) Version() string
func (args *PDFVerifierTLSEstablishedEventArgs) Ciphersuite() string
func (args *PDFVerifierTLSEstablishedEventArgs) ConnectionId() []byte
func (args *PDFVerifierTLSEstablishedEventArgs) Abort() bool
func (args *PDFVerifierTLSEstablishedEventArgs) SetAbort(value bool)

// PDFVerifierTLSEstablishedEvent defines the signature of the PDFVerifier TLSEstablished event's handler function.
type PDFVerifierTLSEstablishedEvent func(sender *PDFVerifier, args *PDFVerifierTLSEstablishedEventArgs)

func (obj *PDFVerifier) GetOnTLSEstablishedHandler() PDFVerifierTLSEstablishedEvent
func (obj *PDFVerifier) SetOnTLSEstablishedHandler(handlerFunc PDFVerifierTLSEstablishedEvent)
```

## Remarks

The struct uses this event to notify the application about a successful completion of a TLS handshake.

The *Version*, *Ciphersuite*, and *ConnectionId* parameters indicate the security parameters of the new connection. Use the *Abort* parameter if you need to terminate the connection at this stage.

# TLSHandshake Event ([PDFVerifier](#pdfverifier-component) Component)

Fires when a new TLS handshake is initiated, before the handshake commences.

## Syntax

*Go Syntax*

```text
// PDFVerifierTLSHandshakeEventArgs carries the PDFVerifier TLSHandshake event's parameters.
type PDFVerifierTLSHandshakeEventArgs struct {...}

func (args *PDFVerifierTLSHandshakeEventArgs) Host() string
func (args *PDFVerifierTLSHandshakeEventArgs) Abort() bool
func (args *PDFVerifierTLSHandshakeEventArgs) SetAbort(value bool)

// PDFVerifierTLSHandshakeEvent defines the signature of the PDFVerifier TLSHandshake event's handler function.
type PDFVerifierTLSHandshakeEvent func(sender *PDFVerifier, args *PDFVerifierTLSHandshakeEventArgs)

func (obj *PDFVerifier) GetOnTLSHandshakeHandler() PDFVerifierTLSHandshakeEvent
func (obj *PDFVerifier) SetOnTLSHandshakeHandler(handlerFunc PDFVerifierTLSHandshakeEvent)
```

## Remarks

The struct uses this event to notify the application about the start of a new TLS handshake to *Host*. If the handshake is successful, this event will be followed by the [TLSEstablished](#tlsestablished-event-pdfverifier-component) event. If the server chooses to request a client certificate, the [TLSCertNeeded](#tlscertneeded-event-pdfverifier-component) event will also be fired.

# TLSShutdown Event ([PDFVerifier](#pdfverifier-component) Component)

Reports the graceful closure of a TLS connection.

## Syntax

*Go Syntax*

```text
// PDFVerifierTLSShutdownEventArgs carries the PDFVerifier TLSShutdown event's parameters.
type PDFVerifierTLSShutdownEventArgs struct {...}

func (args *PDFVerifierTLSShutdownEventArgs) Host() string
// PDFVerifierTLSShutdownEvent defines the signature of the PDFVerifier TLSShutdown event's handler function.
type PDFVerifierTLSShutdownEvent func(sender *PDFVerifier, args *PDFVerifierTLSShutdownEventArgs)

func (obj *PDFVerifier) GetOnTLSShutdownHandler() PDFVerifierTLSShutdownEvent
func (obj *PDFVerifier) SetOnTLSShutdownHandler(handlerFunc PDFVerifierTLSShutdownEvent)
```

## Remarks

This event notifies the application about the closure of an earlier established TLS connection. Note that only graceful connection closures are reported.

# Config Settings ([PDFVerifier](#pdfverifier-component) Component)

 The struct accepts one or more of the following *configuration settings*. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the struct, access to these *internal properties* is provided through the [Config](#config-method-pdfverifier-component) method.

### PDFVerifier Config Settings

**AlternateName**: TBD.TBD

**AsyncDocumentID**: Specifies the document ID for SignAsyncEnd() call.Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch. This value helps ASiCSigner identify the correct signature in the returned batch of responses. If using batched requests, make sure to set this property to the same value on both pre-signing (SignAsyncBegin) and completion (SignAsyncEnd) stages.

**BuildApplicationName**: Specifies the application name used to create the signature.Use this property to set the application name used to create the signature.

For advanced settings of the build properties, use the [BuildProperties](#BuildProperties) configuration setting.

**BuildApplicationVersion**: Specifies the application version used to create the signature.Use this property to set the application version used to create the signature.

For advanced settings of the build properties, use the [BuildProperties](#BuildProperties) configuration setting.

**BuildProperties**: Specifies the build properties of the signature.Use this property to set the build properties of the signature in JSON format. Names of JSON fields correspond to the entry names in Adobe's Digital Signature Build Dictionary Specification.

Sample value:

```text
{
   "App":{
      "Name":"TestApp",
      "REx":"8.0.0"
   }
}
```

The above value sets the application name and version used to create the signature. The same result could be achieved using the [BuildApplicationName](#BuildApplicationName) and [BuildApplicationVersion](#BuildApplicationVersion) configuration settings.

Sample value 2:

```text
{
   "App":{
      "Name":"TestApp",
      "REx":"8.0.0",
      "R":524288,
      "Date":"2023-01-01 00:01",
      "OS":[
         "Win"
      ],
      "TrustedMode":true
   },
   "Filter":{
      "Name":"TestFilter",
      "R":131101,
      "Date":"2023-01-01 00:02",
      "PreRelease":true
   },
   "PubSec":{
      "R":13102,
      "Date":"2023-01-01 00:03",
      "PreRelease":true,
      "NonEFontNoWarn":true
   }
}
```

**CachedCRLMaxAge**: Specifies the maximum age of a cached CRL.Use this setting to specify the maximum number of seconds that may pass since a CRL was added to the global cache. When the cached CRL is older than this value, it is disregarded and a new CRL should be fetched.

The default value is 1 day (86400 seconds). A value of 0 disables the absolute CRL age check. See [RevocationCacheAgePolicy](#RevocationCacheAgePolicy) for configuring this setting together with the related cached revocation freshness settings.

**CachedCRLMaxAgeRatio**: Specifies the maximum age of a cached CRL as a percentage of its remaining lifetime.Use this setting to specify the percentage of the CRL's remaining lifetime, measured from the time the CRL was added to the global cache to the CRL's NextUpdate. When this portion of the remaining lifetime has passed, the cached CRL is disregarded and a new CRL should be fetched.

The default value is 50 percent. Values are interpreted in the 0..100 range. A value of 0 disables the CRL ratio check. See [RevocationCacheAgePolicy](#RevocationCacheAgePolicy) for configuring this setting together with the related cached revocation freshness settings.

**CachedCRLOverlapTime**: Specifies the time period before a cached CRL's NextUpdate when it is considered stale and must be refreshed.Use this setting to specify the number of seconds before the NextUpdate time at which the cached CRL should be disregarded, and a new CRL should be fetched.

The default value is 10 minutes (600 seconds). A value of 0 disables the CRL overlap check. See [RevocationCacheAgePolicy](#RevocationCacheAgePolicy) for configuring this setting together with the related cached revocation freshness settings.

This setting is evaluated independently from [CachedCRLMaxAge](#CachedCRLMaxAge) and [CachedCRLMaxAgeRatio](#CachedCRLMaxAgeRatio). If several cached CRL freshness settings are enabled, the cached CRL is used only if it satisfies all of them.

**CachedOCSPResponseMaxAge**: Specifies the maximum age of a cached OCSP response.Use this setting to specify the maximum number of seconds that may pass since an OCSP response was added to the global cache. When the cached OCSP response is older than this value, it is disregarded and a new OCSP response should be fetched.

The default value is 1 hour (3600 seconds). A value of 0 disables the absolute OCSP response age check. This setting is also used to limit open-ended OCSP responses that do not have NextUpdate. See [RevocationCacheAgePolicy](#RevocationCacheAgePolicy) for configuring this setting together with the related cached revocation freshness settings.

**CachedOCSPResponseMaxAgeRatio**: Specifies the maximum age of a cached OCSP response as a percentage of its remaining lifetime.Use this setting to specify the percentage of the OCSP response's remaining lifetime, measured from the time the OCSP response was added to the global cache to the response's NextUpdate. When this portion of the remaining lifetime has passed, the cached OCSP response is disregarded and a new OCSP response should be fetched.

The default value is 50 percent. Values are interpreted in the 0..100 range. Open-ended OCSP responses without NextUpdate ignore this setting; use [CachedOCSPResponseMaxAge](#CachedOCSPResponseMaxAge) to limit their age. A value of 0 disables the OCSP response ratio check. See [RevocationCacheAgePolicy](#RevocationCacheAgePolicy) for configuring this setting together with the related cached revocation freshness settings.

**CachedOCSPResponseOverlapTime**: Specifies the time period before a cached OCSP response's NextUpdate when it is considered stale and must be refreshed.Use this setting to specify the number of seconds before the NextUpdate time at which the cached OCSP response should be disregarded, and a new OCSP response should be fetched.

The default value is 10 minutes (600 seconds). A value of 0 disables the OCSP response overlap check. See [RevocationCacheAgePolicy](#RevocationCacheAgePolicy) for configuring this setting together with the related cached revocation freshness settings.

This setting is evaluated independently from [CachedOCSPResponseMaxAge](#CachedOCSPResponseMaxAge) and [CachedOCSPResponseMaxAgeRatio](#CachedOCSPResponseMaxAgeRatio). If several cached OCSP response freshness settings are enabled, the cached OCSP response is used only if it satisfies all of them.

**ChainCurrentCACert**: Returns the current CA certificate.This property returns the CA certificate that is used on the current step.

**ChainCurrentCert**: Returns the certificate that is currently being validated.Use this property to obtain the body of the certificate that is currently being validated.

**ChainCurrentCRL**: Returns the current CRL.Returns the CRL object that is currently being processed.

**ChainCurrentCRLSize**: Returns the size of the current CRL.This property returns the size of the CRL object that is currently being processed.

**ChainCurrentOCSP**: Returns the current OCSP response.Returns the OCSP object that is currently being processed.

**ChainCurrentOCSPSigner**: Returns the signer of the current OCSP object.Returns the signer/CA that has issued the OCSP response that is currently being processed.

**ChainInterimDetails**: Returns the current interim validation details.This property returns the interim chain validation details.

**ChainInterimResult**: Returns the current interim validation result.Use this setting to obtain the current (mid-chain) validation result. This property applies to the current validation step and may change as the chain walk proceeds. The final result will be published in the ChainValidationResult property once the validation process completes.

**CheckValidityPeriodForTrusted**: Whether to check validity period for trusted certificates.Whether to check validity period for trusted certificates.

**ConfigPreferLegacyLevels**: Indicates whether legacy signature levels should be preferred.Set this property to True to instruct the validation engine to prioritize legacy PAdES signature levels (BES, EPES, LTV) over Baseline levels (B-B, B-T, B-LT, B-LTA) when a signature can be determined as multiple levels.

TBD

**CustomSignedAttributes**: TBD.TBD

**CustomTrustedLists**: Specifies the custom TrustedLists.Use this property to specify the custom TSLs (Trust Service status Lists) to the validator. The URLs list is comma-separated.

**CustomTSLs**: Specifies the custom TrustedLists.Use this property to specify the custom TSLs (Trust Service status Lists) to the validator. The URLs list is comma-separated.

**CustomUnsignedAttributes**: TBD.TBD

**DeltaCRLPreference**: Specifies whether complete or delta CRLs are preferred.Use this setting to specify which CRL type should be preferred during revocation checks performed by the AdES component.

The default value is **dcrlpPreferComplete** (1).

Supported values:

- **dcrlpPreferDelta** (0): retrieve and use delta CRLs when available, falling back to complete CRLs when needed.
- **dcrlpPreferComplete** (1): try complete CRLs first, and use delta CRLs only if complete CRLs cannot be retrieved.

**DislikeOpenEndedOCSPs**: Tells the struct to discourage OCSP responses without an explicit NextUpdate parameter.When this property is set to True, the validation engine treats OCSP response without a NextUpdate field as 'substandard' and tries to obtain some further revocation material for the certificate in question (a different OCSP or a CRL, even if the struct is configured to prefer the OCSP route). This is to work around Adobe Reader's intolerance to such OCSPs when classifying signed documents as LTV (as of August 2022).

**DocumentVersion**: The document version from the PDF document header.This property contains the PDF document version provided in the document header. The version is returned in the form "Major.Minor": for example, PDF-1.7 will be returned as "1.7", and PDF-2.0 as "2.0".

**DTSAccuracy**: Indicates the accuracy of the document timestamp.Use this property to get the accuracy of the document timestamp in microseconds.

The value is set for document timestamp signatures and is 0 if the timestamp does not include accuracy information.

This is a signature property that can be accessed as "Signatures[index].DTSAccuracy", or as "DTSAccuracy" for the current signature (the signature being validated or the last signature).

**DTSSerialNumber**: Indicates the serial number of the document timestamp.Use this property to get the serial number of the document timestamp.

The value is set for document timestamp signatures.

This is a signature property that can be accessed as "Signatures[index].DTSSerialNumber", or as "DTSSerialNumber" for the current signature (the signature being validated or the last signature).

**DTSTime**: Indicates the time of the document timestamp.Use this property to get the time included in the document timestamp.

The value is set for document timestamp signatures.

This is a signature property that can be accessed as "Signatures[index].DTSTime", or as "DTSTime" for the current signature (the signature being validated or the last signature).

**DTSTSAName**: Indicates the TSA name of the document timestamp.Use this property to get the name of the timestamping authority that issued the document timestamp.

The value is set for document timestamp signatures when the timestamp includes a TSA name.

This is a signature property that can be accessed as "Signatures[index].DTSTSAName", or as "DTSTSAName" for the current signature (the signature being validated or the last signature).

**EmptySignatureFieldAddRevInfo[Index]**: Specifies if revocation checking should be performed.This property contains True if the viewing application should check the signing certificate revocation info and include the revocation information within the signature value.

**EmptySignatureFieldAlternateName[Index]**: Contains an alternate field name.This property contains an alternate field name to be used in place of the actual field name wherever the field must be identified in the user interface.

**EmptySignatureFieldCount**: The number of empty signature form fields.Returns the number of empty signature form fields available.

NOTE: The information about empty signature fields is available when the PDF document is open. Read this setting either between [Open](#open-method-pdfverifier-component) and [Close](#close-method-pdfverifier-component) methods, or in [DocumentLoaded](#documentloaded-event-pdfverifier-component) event handler.

**EmptySignatureFieldFlags[Index]**: The field flags of the signature form field.This property contains the empty signature form field flags ("Ff" entry in the signature field dictionary).

**EmptySignatureFieldHeight[Index]**: The Height of the empty signature form field.This property contains the height of the empty signature form field.

**EmptySignatureFieldInvisible[Index]**: The visibility status of the field.This property contains True if the empty signature form field is visible.

**EmptySignatureFieldLegalAttestations[Index]**: Specifies the legal attestations that are associated with the signature.This property contains the legal attestations that are associated with the signature.

**EmptySignatureFieldMappingName[Index]**: The mapping name to be used when exporting form field data from the document.This property contains the name to be used when exporting form field data from the document.

**EmptySignatureFieldName[Index]**: Textual field name.This property contains the empty signature field name.

**EmptySignatureFieldOffsetX[Index]**: The field's offset from the left page border.This property contains the horizontal offset of the empty signature form field.

**EmptySignatureFieldOffsetY[Index]**: The field's offset from the bottom page border.This property contains the vertical offset of the empty signature form field.

**EmptySignatureFieldPage[Index]**: The index of the form field's page in the document.This property contains the index of the empty signature form field's page in the document.

**EmptySignatureFieldRequiredAllowedChanges[Index]**: Specifies the changes allowed by the signature.This property contains the changes that are allowed to the document when the signature field is signed.

**EmptySignatureFieldRequiredConstraints[Index]**: Specifies the required Seed Value Dictionary (SVD) constraints.This property contains the required SVD constraints. If a certain bit in RequiredConstraints is switched on, the corresponding data item is constrained.

**EmptySignatureFieldRequiredDigestAlgorithms[Index]**: Specifies the required digest algorithms.This property contains the list of the digest algorithms used for signature generation.

**EmptySignatureFieldRequiredFilter[Index]**: Specifies the required filter.This property contains the required filter (name of the preferred signature handler) to use for signature generation.

**EmptySignatureFieldRequiredLockAction[Index]**: Indicates which set of fields shall be locked.This property contains a set of form fields that shall be locked when the current signature field is signed.

**EmptySignatureFieldRequiredLockFields[Index]**: Indicates the fields that shall be locked on signing.This property contains the list of form field names that shall be locked when the current signature field is signed. Whether this list shall be included or excluded is defined by the EmptySignatureFieldRequiredLockAction[Index] property.

**EmptySignatureFieldRequiredReasons[Index]**: Specifies the required reasons.This property contains the required reasons used for signature generation.

**EmptySignatureFieldRequiredSubfilters[Index]**: Specifies the required subfilters.This property contains the list of subfilters required by the signature. A subfilter represents the encoding to use when signing the PDF form.

**EmptySignatureFieldTimestampRequired[Index]**: Specifies if the signature should be timestamped.This property contains True if the signature should be timestamped.

**EmptySignatureFieldTSPURL[Index]**: URL for a TSP server.This property contains the TSP server URL.

**EmptySignatureFieldWidth[Index]**: The Width of the empty signature form field.This property contains the width of the empty signature form field.

**EnableOldSignatures**: Enables support for prehistoric adbe.x509.sha1 signatures.Set this property to true to enable support for adbe.x509.sha1 signatures (based on raw PKCS#1 signing). Signatures of this kind are very old, insecure, and extremely rarely used. It is reasonable to only enable this setting if you are know what you are doing.

**EncryptionHandlerName**: Specifies the custom security handler PDF-name.Specifies the custom security handler PDF-name for the encryption handler.

**EvaluateSystemTrust**: Enables or disables usage of the platform's built-in trust validation facilities.When enabled, the component delegates the certificate chain validation to the operating system's native trust evaluation mechanism (e.g. SecTrustEvaluate on Apple platforms). This functionality is currently available on macOS and iOS systems only. This property is disabled by default, because enabling it may prevent the AdES components from collecting full revocation information required for long-term validation (LTV) signatures.

**EvaluateSystemTrustForSelfSignedCertificates**: Enables or disables usage of the platform's built-in trust validation facilities for self-signed certificates.When enabled, the component delegates the certificate chain validation to the operating system's native trust evaluation mechanism (e.g. SecTrustEvaluate on Apple platforms) for self-signed certificates. This functionality is currently available on macOS and iOS systems only. This property is enabled by default.

**EvaluateSystemTrustForSSL**: Enables or disables usage of the platform's built-in trust validation facilities for SSL/TLS.When enabled, the component delegates the certificate chain validation to the operating system's native trust evaluation mechanism (e.g. SecTrustEvaluate on Apple platforms) specifically for SSL/TLS certificates. This functionality is currently available on macOS and iOS systems only. This property is enabled by default.

**ForceCompleteChainValidation**: Whether to check the CA certificates when the signing certificate is invalid.Set this property to True to check issuer (CA) certificates if the signing or an intermediate chain certificate is invalid.

**ForceCompleteChainValidationForTrusted**: Whether to continue with the full validation up to the root CA certificate for mid-level trust anchors. Set this property to True to enable full chain validation for explicitly trusted intermediary or end-entity certificates. This may be useful when creating signatures to enforce completeness of the collected revocation information. It often makes sense to set this property to false when validating signatures to reduce validation time and avoid issues with badly configured environments.

**GracePeriod**: Specifies a grace period to apply during revocation information checks.Use this property to specify a grace period (in seconds). Grace period applies to certain subprotocols, such as OCSP, and caters to the inaccuracy and/or missynchronization of clocks on different participating systems. Any time deviations within the grace period will be tolerated.

**HardenedKeyGeneration**: Specifies if hardened Key generation should be used.Specifies if hardened Key generation should be used when the AES-256 encryption algorithm and password encryption are used.

**IgnoreChainLoops**: Whether chain loops should be ignored.Set this property to True to make the validation engine ignore chain loops. This may be an option when you need to process chains from buggy CAs that happen to include subchains that sign themselves.

**IgnoreChainValidationErrors**: Whether to ignore any certificate chain validation issues.Enable this property to ignore any chain validation errors when creating a signature. This may be useful if the signature is created in an environment which uses different trust settings to the validation environment.

**IgnoreOCSPNoCheckExtension**: Whether the OCSP NoCheck extension should be ignored.Set this property to True to make the validation engine ignore the OCSP no-check extension. You would normally need to set this property when validating severely non-compliant chains that misuse the extension, causing chain loops or other validation issues.

**IgnoreSystemTrust**: Whether trusted Windows Certificate Stores should be treated as trusted.Specifies whether, during chain validation, the struct should respect the trust to CA certificates as configured in the operating system. In Windows this effectively defines whether the struct should trust the certificates residing in the Trusted Root Certification Authorities store.

If [IgnoreSystemTrust](#IgnoreSystemTrust) is True, certificates residing in the trusted root store are treated as if they are known, rather than trusted. Only certificates provided via other means (such as the TrustedCertificates property) are considered trusted.

**IgnoreTimestampChainValidityForLevelDetection**: Specify whether timestamp chain validity should be ignored during signature level detection.Set this property to True to instruct the validation engine to disregard the validity of the timestamp signer certificate chain when determining the signature level.

TBD

**ImplicitlyTrustSelfSignedCertificates**: Whether to trust self-signed certificates. Set this property to True to implicitly trust all self-signed certificates. Use it with care as trusting just about every self-signed certificate is unwise. One exceptional reason where this property may be handy is where a chain is validated in an environment that is not supposed to trust it (for example, a signing, rather than verifying environment, or a QA server). Trusting all self-signing certificates (which are normally trusted) allows emulating the verifying environment without actually changing its security settings.

**IsLTVEnabled**: Indicates LTV-enabled signature.Use this property to check if the signature is *LTV-enabled*. This property is similar to *LTV-enabled* property reported by Adobe Reader.

This is a signature property that can be accessed as "Signatures[index].IsLTVEnabled", or as "IsLTVEnabled" for the current signature (the signature being validated or the last signature).

**MappingName**: TBD.TBD

**MDPHashAlgorithm**: Specifies the MDP hash algorithm.Use this property to control the hash algorithm's signature references (DocMDP, FieldMDP transforms).

The following values are supported:

|  |  |  |
| --- | --- | --- |
|  | "auto" | Default value. The struct automatically select the hash algorithm based on the PDF document version. For version 1.6 and higher it uses "none" value, for the other versions it uses MD5 hash algorithm. |
|  | "MD5" | The struct uses MD5 hash algorithm. |
|  | "SHA1" | The struct uses SHA1 hash algorithm. |
|  | "SHA256" | The struct uses SHA256 hash algorithm. |
|  | "SHA384" | The struct uses SHA384 hash algorithm. |
|  | "SHA512" | The struct uses SHA512 hash algorithm. |
|  | "RIPEMD160" | The struct uses RIPEMD160 hash algorithm. |
|  | "SHA3_256" | The struct uses SHA3-256 hash algorithm. |
|  | "SHA3_384" | The struct uses SHA3-384 hash algorithm. |
|  | "SHA3_512" | The struct uses SHA3-512 hash algorithm. |
|  | "SHAKE_256" | The struct uses SHAKE-256 hash algorithm. |
|  | "none" | The struct will not calculate a digest and will not include DigestLocation, DigestMethod, and DigestValue keys of the Signature References dictionary. |

**PageInfoCount**: The number of pages.Returns the number of pages available.

**PageInfoCropBoxEmpty[Index]**: Check if the page's crop box is empty or not.This property contains True if the crop box is empty, and False otherwise. The crop box defines the region to which the contents of the page shall be clipped (cropped) when displayed or printed.

**PageInfoCropLLX[Index]**: Defines the X coordinate of the lower left corner of the crop box.This property contains the X coordinate of the lower left corner of the crop box of the page. The crop box defines the region to which the contents of the page shall be clipped (cropped) when displayed or printed.

**PageInfoCropLLY[Index]**: Defines the Y coordinate of the lower left corner of the crop box.This property contains the Y coordinate of the lower left corner of the crop box of the page. The crop box defines the region to which the contents of the page shall be clipped (cropped) when displayed or printed.

**PageInfoCropURX[Index]**: Defines the X coordinate of the upper right corner of the crop box.This property contains the X coordinate of the upper right corner of the crop box of the page. The crop box defines the region to which the contents of the page shall be clipped (cropped) when displayed or printed.

**PageInfoCropURY[Index]**: Defines the Y coordinate of the upper right corner of the crop box.This property contains the Y coordinate of the upper right corner of the crop box of the page. The crop box defines the region to which the contents of the page shall be clipped (cropped) when displayed or printed.

**PageInfoHeight[Index]**: The Height of the page.This property contains the page height value.

**PageInfoMediaLLX[Index]**: Defines the X coordinate of the lower left corner of the media box.This property contains the X coordinate of the lower left corner of the media box of the page. The media box defines the boundaries of the physical medium on which the page is to be printed.

**PageInfoMediaLLY[Index]**: Defines the Y coordinate of the lower left corner of the media box.This property contains the Y coordinate of the lower left corner of the media box of the page. The media box defines the boundaries of the physical medium on which the page is to be printed.

**PageInfoMediaURX[Index]**: Defines the X coordinate of the upper right corner of the media box.This property contains the X coordinate of the upper right corner of the media box of the page. The media box defines the boundaries of the physical medium on which the page is to be printed.

**PageInfoMediaURY[Index]**: Defines the Y coordinate of the upper right corner of the media box.This property contains the Y coordinate of the upper right corner of the media box of the page. The media box defines the boundaries of the physical medium on which the page is to be printed.

**PageInfoRotate[Index]**: The Rotate value of the page.This property contains the page rotation angle.

**PageInfoUserUnit[Index]**: Defines the size of default user space units.This property contains a positive number that shall give the size of default user space units, in multiples of 1/72 inch. The default value is 1.0 (user space unit is 1/72 inch).

**PageInfoWidth[Index]**: The Width of the page.This property contains the page width value.

**PolicyDescription**: signature policy description.This property specifies the Description of the signature policy.

**PolicyExplicitText**: The explicit text of the user notice.Use this property to specify the explicit text of the user notice to be displayed when the signature is verified.

**PolicyUNNumbers**: The noticeNumbers part of the NoticeReference CAdES attribute. Defines the "noticeNumbers" part of the NoticeReference signature policy qualifier for CAdES-EPES.

**PolicyUNOrganization**: The organization part of the NoticeReference qualifier.Defines the "organization" part of the NoticeReference signature policy qualifier for CAdES-EPES.

**ProductionPlace**: Identifies the place of the signature production.The signature production place in JSON format that was included or to be included into the signature.

Sample value: '{"addressCountry": "UK", "addressLocality": "London", "postalCode": "N1 7GU", "streetAddress": "20-22 Wenlock Road"}'

**PromoteLongOCSPResponses**: Whether long OCSP responses are requested. Set this property to True to force the struct to publish the 'long' form of OCSP responses. Otherwise, only BasicOCSPResponse blobs are promoted.

**PSSUsed**: Whether to use RSASSA-PSS algorithm.Although the RSASSA-PSS algorithm provides better security than a classic RSA scheme (PKCS#1-1.5), please take into account that RSASSA-PSS is a relatively new algorithm which may not be understood by older implementations. This is an alias for *UsePSS*.

**RC4KeyBits**: Specifies the number of key bits used for the RC4 algorithm.Specifies the number of key bits used for the RC4 encryption algorithm.

**ReassembleMode**: Specifies the document reassemble mode.Use this property to control if the PDF document should be reassembled before signing/saving it. This property doesn't have any effect on PDF documents that have already been signed.

The following values are supported:

|  |  |  |
| --- | --- | --- |
|  | "auto" | Default value. The struct automatically reassembles PDF documents in case they contain errors that may invalidate new signatures. |
|  | "disabled" | The struct never reassembles PDF documents. This value is not recommended. |
|  | "enabled" | The struct always reassembles PDF documents. |
|  | "hybrid" | The struct reassembles PDF documents in the same cases as in "auto" mode and additionally reassembles hybrid PDF documents - documents that contain cross-reference tables and cross-reference streams. |

**RevocationCacheAgePolicy**: Specifies a preset policy for cached CRL and OCSP response freshness settings.Use this setting to configure all cached revocation freshness settings at once. The default value is Default.

Supported values are case-insensitive:

|  |  |
| --- | --- |
| Default | Applies the AdES default freshness settings: crl:86400;50;600,ocsp:3600;50;600. This means: CRL maximum age 1 day, CRL age ratio 50%, CRL overlap 10 minutes; OCSP response maximum age 1 hour, OCSP response age ratio 50%, OCSP response overlap 10 minutes. This value is the default. |
| Disabled | Sets [CachedCRLOverlapTime](#CachedCRLOverlapTime), [CachedOCSPResponseOverlapTime](#CachedOCSPResponseOverlapTime), [CachedCRLMaxAge](#CachedCRLMaxAge), [CachedOCSPResponseMaxAge](#CachedOCSPResponseMaxAge), [CachedCRLMaxAgeRatio](#CachedCRLMaxAgeRatio), and [CachedOCSPResponseMaxAgeRatio](#CachedOCSPResponseMaxAgeRatio) to 0. It only disables the cache-age freshness policy; it does not disable revocation checking or use of the revocation cache. |
| Short | Uses crl:43200;50;300,ocsp:1800;50;300. This means: CRL maximum age 12 hours, CRL age ratio 50%, CRL overlap 5 minutes; OCSP response maximum age 30 minutes, OCSP response age ratio 50%, OCSP response overlap 5 minutes. |
| Long | Uses crl:518400;50;3600,ocsp:21600;50;3600. This means: CRL maximum age 6 days, CRL age ratio 50%, CRL overlap 1 hour; OCSP response maximum age 6 hours, OCSP response age ratio 50%, OCSP response overlap 1 hour. |
| N | Interprets N as an integer number of seconds. The overlap settings are set to N seconds, CRL maximum age is set to N * 144, OCSP response maximum age is set to N * 6, and both ratio settings are set to 50. |
| crl:<maxAge>;<ratio>;<overlap>,ocsp:<maxAge>;<ratio>;<overlap> | Sets the CRL and OCSP response freshness values explicitly. |

Ratios must be in the 0..100 range. Maximum age and overlap values must be non-negative. Short and Long are time-scale profiles: Long allows older cached revocation information by increasing maximum ages, but also uses a larger pre-expiry safety margin by increasing overlap times. For individual [CachedCRLOverlapTime](#CachedCRLOverlapTime), [CachedOCSPResponseOverlapTime](#CachedOCSPResponseOverlapTime), [CachedCRLMaxAge](#CachedCRLMaxAge), [CachedOCSPResponseMaxAge](#CachedOCSPResponseMaxAge), [CachedCRLMaxAgeRatio](#CachedCRLMaxAgeRatio), and [CachedOCSPResponseMaxAgeRatio](#CachedOCSPResponseMaxAgeRatio) settings, a value of 0 disables the corresponding freshness check. The individual settings remain available for advanced configuration and can be used after this setting to override specific values.

**SchemeParams**: The algorithm scheme parameters to employ.Use this property to specify the parameters of the algorithm scheme if needed.

This setting is used to provide parameters for some cryptographic schemes. Use the Name1=Value1;Name2=Value2;... syntax to encode the parameters. For example: *Scheme=PSS;SaltSize=32;TrailerField=1*.

**SigPolicyDescription**: signature policy description.This property specifies the Description of the signature policy (an alias for PolicyDescription).

**SigPolicyExplicitText**: The explicit text of the user notice.Use this property to specify the explicit text of the user notice to be displayed when the signature is verified (an alias for PolicyExplicitText);

**SigPolicyHash**: The EPES policy hash.Use this configuration setting to provide the EPES policy hash.

**SigPolicyHashAlgorithm**: The hash algorithm that was used to generate the EPES policy hash.Use this setting to provide the hash algorithm that was used to generate the policy hash.

**SigPolicyID**: The EPES policy ID.The EPES signature policy identifier, in dotted OID format (1.2.3.4.5).

**SigPolicyNoticeNumbers**: The noticeNumbers part of the NoticeReference CAdES attribute. Defines the "noticeNumbers" part of the NoticeReference signature policy qualifier for CAdES-EPES (an alias for PolicyUNNumbers).

**SigPolicyNoticeOrganization**: The organization part of the NoticeReference qualifier.Defines the "organization" part of the NoticeReference signature policy qualifier for CAdES-EPES (an alias for PolicyUNOrganization).

**SigPolicyURI**: The EPES policy URI.Assign the EPES policy URI to this setting.

**TempPath**: Path for storing temporary files.This setting specifies an absolute path to the location on disk where temporary files are stored. This setting is supported only in the Java edition for all applicable signing components except [PDFSigner](PDFSigner.md#PDFSigner), where this limitation does not apply.

**TimestampResponse**: A base16-encoded timestamp response received from a TSA.When using *virtual://* timestamp endpoints, assign this property in your [Notification](#notification-event-pdfverifier-component) event handler with the TSP response that you receive from the TSA. Remember to encode the response in hex (base16).

**TLSChainValidationDetails**: Contains the advanced details of the TLS server certificate validation.Check this property in the TLSCertValidate event handler to access the TLS certificate validation details.

**TLSChainValidationResult**: Contains the result of the TLS server certificate validation.Check this property in the TLSCertValidate event handler to obtain the TLS certificate validation result.

**TLSClientAuthRequested**: Indicates whether the TLS server requests client authentication.Check this property in the TLSCertValidate event handler to find out whether the TLS server requests the client to provide the authentication certificate. If this property is set to true, provide your certificate via the TLSClientChain property. Note that the struct may fire this event more than once during each operation, as more than one TLS-enabled server may need to be contacted.

**TLSValidationLog**: Contains the log of the TLS server certificate validation.Check this property in the TLSCertValidate event handler to retrieve the validation log of the TLS server.

**TolerateMinorChainIssues**: Whether to tolerate minor chain issues.This parameter controls whether the chain validator should tolerate minor technical issues when validating the chain. Those are:

- CA, revocation source, TLS key usage requirements are not mandated
- Violation of OCSP issuer requirements are ignored
- The AuthorityKeyID extension in CRL- and certificate-issuing CAs are ignored (helps with incorrectly renewed certificates)
- Basic constraints and name constraints of CA certificates are ignored
- Some weaker algorithms are tolerated

**TspAttemptCount**: Specifies the number of timestamping request attempts.Use this property to specify a number of timestamping request attempts.

In case of a timestamping failure, provide new TSA and HTTP settings inside the [Notification](#notification-event-pdfverifier-component) event handler ('BeforeTimestamp' and 'TimestampError' event IDs).

**TspHashAlgorithm**: Sets a specific hash algorithm for use with the timestamping service.In default configuration struct uses the 'SHA256' hash algorithm. Use this property to specify a different hash algorithm for the timestamp.

Note: Unlike other structs, [PDFSigner](PDFSigner.md#PDFSigner) struct uses the same hash algorithm for the main signature and any associated timestamps during signing. Use this property to specify a different hash algorithm for the timestamp.

**TspReqPolicy**: Sets a request policy ID to include in the timestamping request.Use this property to provide a specific request policy OID to include in the timestamping request. Use the standard human-readable OID notation (1.2.3.4.5).

**UseDefaultTrustedLists**: Enables or disables the use of the default TrustedLists.Use this property to tell the validator to use (or not to use) the default TSLs (Trust Service status Lists).

The following default TSLs are used: EU (European Union) LOTL (list of trusted lists).

**UseDefaultTSLs**: Enables or disables the use of the default TrustedLists.Use this property to tell the validator to use (or not to use) the default TSLs (Trust Service status Lists).

The following default TSLs are used: EU (European Union) LOTL (list of trusted lists).

**UseEnvStorages**: Enables or disables use of the environment storages.Enable this property to make the chain validation module automatically look up missing CA and intermediate certificates in the environment storages.

**UseMicrosoftCTL**: Enables or disables the automatic use of the Microsoft online certificate trust list.Enable this property to make the chain validation module automatically look up missing CA certificates in the public Windows Update repository.

**UsePSS**: Whether to use RSASSA-PSS algorithm.Although the RSASSA-PSS algorithm provides better security than a classic RSA scheme (PKCS#1-1.5), please take into account that RSASSA-PSS is a relatively new algorithm which may not be understood by older implementations.

**UseSystemCertificates**: Enables or disables the use of the system certificates.Use this property to tell the chain validation module to automatically look up missing CA certificates in the system certificates. In many cases it is beneficial to switch this property on, as the operating system certificate configuration provides a representative trust framework.

**UseValidationCache**: Enables or disable the use of the product-wide certificate chain validation cache.Use this property to enable or disable the use of the global chain validation cache. If enabled, the struct will consult the product-wide validation cache when validating the signing chains. Also, the outcomes of any new chain validations performed by the struct, both interim and final, will be saved in the cache and available for re-use by any future validations. Disable this property to ignore the cache and always perform the validation from a fresh start.

**UseValidatorSettingsForTLSValidation**: Whether to employ the primary chain validator setup for auxiliary TLS chain validations.Use this property to specify whether you would like to use the primary (AdES) chain validator component to validate TLS chains for any connections involved (OCSP, CRL).

**WidgetHeight**: Specifies the height of the signature widget.Use this property to set the height of the signature widget in points. Integer and float values are supported.

This property extends the [NewSigHeight](#PDFVerifier_p_NewSigHeight) property to allow the height of the signature widget to be specified in fractional points.

**WidgetOffsetX**: Specifies the signature widget offset from the left-hand page border.Use this property to set the signature widget offset from the left-hand page border. Integer and float values are supported.

This property extends the [NewSigOffsetX](#PDFVerifier_p_NewSigOffsetX) property to allow the offset of the signature widget to be specified in fractional points.

**WidgetOffsetY**: Specifies the signature widget offset from the bottom page border.Use this property to set the signature widget offset from the bottom page border. Integer and float values are supported.

This property extends the [NewSigOffsetY](#PDFVerifier_p_NewSigOffsetY) property to allow the offset of the signature widget to be specified in fractional points.

**WidgetWidth**: Specifies the width of the signature widget.Use this property to set the width of the signature widget in points. Integer and float values are supported.

This property extends the [NewSigWidth](#PDFVerifier_p_NewSigWidth) property to allow the width of the signature widget to be specified in fractional points.

**XMPMetadataContent**: The XMP metadata content.Use this config property to read or set the XMP metadata content.

### Base Config Settings

**ASN1UseGlobalTagCache**: Controls whether ASN.1 module should use a global object cache.This is a performance setting. It is unlikely that you will ever need to adjust it.

**AssignSystemSmartCardPins**: Specifies whether CSP-level PINs should be assigned to CNG keys.This is a low-level tweak for certain cryptographic providers. It is unlikely that you will ever need to adjust it.

**CheckKeyIntegrityBeforeUse**: Enables or disable private key integrity check before use.This global property enables or disables private key material check before each signing operation. This slows down performance a bit, but prevents a selection of attacks on RSA keys where keys with unknown origins are used.

You can switch this property off to improve performance if your project only uses known, good private keys.

**CookieCaching**: Specifies whether a cookie cache should be used for HTTP(S) transports.Set this property to enable or disable cookies caching for the struct.

Supported values are:

|  |  |  |
| --- | --- | --- |
| off |  | No caching (default) |
| local |  | Local caching |
| global |  | Global caching |

**Cookies**: Gets or sets local cookies for the struct.Use this property to get cookies from the internal cookie storage of the struct and/or restore them back between application sessions.

**DefDeriveKeyIterations**: Specifies the default key derivation algorithm iteration count.This global property sets the default number of iterations for all supported key derivation algorithms. Note that you can provide the required number of iterations by using properties of the relevant key generation component; this global setting is used in scenarios where specific iteration count is not or cannot be provided.

**DNSLocalSuffix**: The suffix to assign for TLD names.Use this global setting to adjust the default suffix to assign to top-level domain names. The default is *.local*.

**EnableClientSideSSLFFDHE**: Enables or disables finite field DHE key exchange support in TLS clients.This global property enables or disables support for finite field DHE key exchange methods in TLS clients. FF DHE is a slower algorithm if compared to EC DHE; enabling it may result in slower connections.

This setting only applies to sessions negotiated with TLS version 1.3.

**EnableSSHMLKEM**: Enables support for ML-KEM/hybrid key exchange algorithms in SSH client and server components.Use this setting to enable hybrid key exchange algorithms in client and server SSH and SFTP components. This is a global setting that enables ML-KEM blanketly in all SSH-dependent components.

**EnableTLSMLKEM**: Enables support for ML-KEM and hybrid groups in TLS client and server components.Use this setting to enable ML-KEM and hybrid key exchange groups in client and server TLS components. This is a global setting that enables ML-KEM blanketly in all TLS-dependent components.

**GlobalCookies**: Gets or sets global cookies for all the HTTP transports.Use this property to get cookies from the GLOBAL cookie storage or restore them back between application sessions. These cookies will be used by all the structs that have its *CookieCaching* property set to "global".

**HardwareCryptoUsePolicy**: The hardware crypto usage policy.This global setting controls the hardware cryptography usage policy.

Supported Values:

|  |  |
| --- | --- |
| auto | Use hardware cryptography if available; otherwise, fall back to software-based cryptography (default). |
| enable | Always attempt to use hardware cryptography. If unavailable, exception will be thrown. |
| disable | Do not use hardware cryptography. |

**HttpUserAgent**: Specifies the user agent name to be used by all HTTP clients.This global setting defines the User-Agent field of the HTTP request provides information about the software that initiates the request. This value will be used by all the HTTP clients including the ones used internally in other structs.

**HttpVersion**: The HTTP version to use in any inner HTTP client components created.Set this property to 1.0 or 1.1 to indicate the HTTP version that any internal HTTP clients should use.

**IgnoreExpiredMSCTLSigningCert**: Whether to tolerate the expired Windows Update signing certificate.It is not uncommon for Microsoft Windows Update Certificate Trust List to be signed with an expired Microsoft certificate. Setting this global property to true makes SBB ignore the expired factor and take the Trust List into account.

**ListDelimiter**: The delimiter character for multi-element lists.Allows to set the delimiter for any multi-entry values returned by the component as a string object, such as file lists. For most of the components, this property is set to a newline sequence.

**LogDestination**: Specifies the debug log destination.Contains a comma-separated list of values that specifies where debug log should be dumped.

Supported values are:

|  |  |  |
| --- | --- | --- |
| file |  | File |
| console |  | Console |
| systemlog |  | System Log (supported for Android only) |
| debugger |  | Debugger (supported for VCL for Windows and .Net) |

**LogDetails**: Specifies the debug log details to dump.Contains a comma-separated list of values that specifies which debug log details to dump.

Supported values are:

|  |  |  |
| --- | --- | --- |
| time |  | Current time |
| level |  | Level |
| package |  | Package name |
| module |  | Module name |
| class |  | Class name |
| method |  | Method name |
| threadid |  | Thread Id |
| contenttype |  | Content type |
| content |  | Content |
| all |  | All details |

**LogFile**: Specifies the debug log filename.Use this property to provide a path to the log file.

**LogFilters**: Specifies the debug log filters.Contains a comma-separated list of value pairs ("name:value") that describe filters.

Supported filter names are:

|  |  |  |
| --- | --- | --- |
| exclude-package |  | Exclude a package specified in the value |
| exclude-module |  | Exclude a module specified in the value |
| exclude-class |  | Exclude a class specified in the value |
| exclude-method |  | Exclude a method specified in the value |
| include-package |  | Include a package specified in the value |
| include-module |  | Include a module specified in the value |
| include-class |  | Include a class specified in the value |
| include-method |  | Include a method specified in the value |

**LogFlushMode**: Specifies the log flush mode.Use this property to set the log flush mode. The following values are defined:

|  |  |  |
| --- | --- | --- |
| none |  | No flush (caching only) |
| immediate |  | Immediate flush (real-time logging) |
| maxcount |  | Flush cached entries upon reaching LogMaxEventCount entries in the cache. |

**LogLevel**: Specifies the debug log level.Use this property to provide the desired debug log level.

Supported values are:

|  |  |  |
| --- | --- | --- |
| none |  | None (by default) |
| fatal |  | Severe errors that cause premature termination. |
| error |  | Other runtime errors or unexpected conditions. |
| warning |  | Use of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong". |
| info |  | Interesting runtime events (startup/shutdown). |
| debug |  | Detailed information on flow of through the system. |
| trace |  | More detailed information. |

**LogMaxEventCount**: Specifies the maximum number of events to cache before further action is taken.Use this property to specify the log event number threshold. This threshold may have different effects, depending on the rotation setting and/or the flush mode.

The default value of this setting is 100.

**LogRotationMode**: Specifies the log rotation mode.Use this property to set the log rotation mode. The following values are defined:

|  |  |  |
| --- | --- | --- |
| none |  | No rotation |
| deleteolder |  | Delete older entries from the cache upon reaching LogMaxEventCount |
| keepolder |  | Keep older entries in the cache upon reaching LogMaxEventCount (newer entries are discarded) |

**MaxASN1BufferLength**: Specifies the maximal allowed length for ASN.1 primitive tag data.This global property limits the maximal allowed length for ASN.1 tag data for non-content-carrying structures, such as certificates, CRLs, or timestamps. It does not affect structures that can carry content, such as CMS/CAdES messages. This is a security property aiming at preventing DoS attacks.

**MaxASN1TreeDepth**: Specifies the maximal depth for processed ASN.1 trees.This global property limits the maximal depth of ASN.1 trees that the component can handle without throwing an error. This is a security property aiming at preventing DoS attacks.

**OCSPHashAlgorithm**: Specifies the hash algorithm to be used to identify certificates in OCSP requests.This global setting defines the hash algorithm to use in OCSP requests during chain validation. Some OCSP responders can only use older algorithms, in which case setting this property to SHA1 may be helpful.

**OldClientSideRSAFallback**: Specifies whether the SSH client should use a SHA1 fallback.Tells the SSH client to use a legacy ssh-rsa authentication even if the server indicates support for newer algorithms, such as rsa-sha-256. This is a backward-compatibility tweak.

**PKICache**: Specifies which PKI elements (certificates, CRLs, OCSP responses) should be cached.The PKICache setting specifies which Public Key Infrastructure (PKI) elements should be cached to optimize performance and reduce retrieval times. It supports comma-separated values to indicate the specific types of PKI data that should be cached.

Supported Values:

|  |  |
| --- | --- |
| certificate | Enables caching of certificates. |
| crl | Enables caching of Certificate Revocation Lists (CRLs). |
| ocsp | Enables caching of OCSP (Online Certificate Status Protocol) responses. |

Example (default value):

```text
PKICache=certificate,crl,ocsp
```

 In this example, the component caches certificates, CRLs, and OCSP responses.

**PKICachePath**: Specifies the file system path where cached PKI data is stored.The PKICachePath setting defines the file system path where cached PKI data (e.g., certificates, CRLs, OCSP responses and Trusted Lists) will be stored. This allows the system to persistently save and retrieve PKI cache data, even across application restarts.

The default value is an empty string - no cached PKI data is stored on disk.

Example:

```text
PKICachePath=C:\Temp\cache
```

 In this example, the cached PKI data is stored in the C:\Temp\cache directory.

**ProductVersion**: Returns the version of the SecureBlackbox library.This property returns the long version string of the SecureBlackbox library being used (major.minor.build.revision).

**ServerSSLDHKeyLength**: Sets the size of the TLS DHE key exchange group.Use this property to adjust the length, in bits, of the DHE prime to be used by the TLS server.

**StaticDNS**: Specifies whether static DNS rules should be used.Set this property to enable or disable static DNS rules for the struct. Works only if *UseOwnDNSResolver* is set to *true*.

Supported values are:

|  |  |  |
| --- | --- | --- |
| none |  | No static DNS rules (default) |
| local |  | Local static DNS rules |
| global |  | Global static DNS rules |

**StaticIPAddress[domain]**: Gets or sets an IP address for the specified domain name.Use this property to get or set an IP address for the specified domain name in the internal (of the struct) or global DNS rules storage depending on the *StaticDNS* value. The type of the IP address (IPv4 or IPv6) is determined automatically. If both addresses are available, they are divided by the | (pipe) character.

**StaticIPAddresses**: Gets or sets all the static DNS rules.Use this property to get static DNS rules from the current rules storage or restore them back between application sessions. If *StaticDNS* of the struct is set to "*local*", the property returns/restores the rules from/to the internal storage of the struct. If *StaticDNS* of the struct is set to "*global*", the property returns/restores the rules from/to the GLOBAL storage. The rules list is returned and accepted in JSON format.

**Tag**: Allows to store any custom data.Use this config property to store any custom data.

**TLSSessionGroup**: Specifies the group name of TLS sessions to be used for session resumption.Use this property to limit the search of cached TLS sessions to the specified group. Sessions from other groups will be ignored. By default, all sessions are cached with an empty group name and available to all the structs.

**TLSSessionLifetime**: Specifies lifetime in seconds of the cached TLS session.Use this property to specify how much time the TLS session should be kept in the session cache. After this time, the session expires and will be automatically removed from the cache. Default value is 300 seconds (5 minutes).

**TLSSessionPurgeInterval**: Specifies how often the session cache should remove the expired TLS sessions.Use this property to specify the time interval of purging the expired TLS sessions from the session cache. Default value is 60 seconds (1 minute).

**UseCRLObjectCaching**: Specifies whether reuse of loaded CRL objects is enabled.This setting enables or disables the caching of CRL objects. When set to true (the default value), the system checks if a CRL object is already loaded in memory before attempting to load a new instance. If the object is found, the existing instance is reused, and its reference count is incremented to track its usage. When the reference count reaches zero, indicating that no references to the object remain, the system will free the object from memory. This setting enhances performance by minimizing unnecessary object instantiation and promotes efficient memory management, particularly in scenarios where CRL objects are frequently used.

**UseInternalRandom**: Switches between SecureBlackbox-own and platform PRNGs.Allows to switch between internal/native PRNG implementation and the one provided by the platform.

**UseLegacyAdESValidation**: Enables legacy AdES validation mode.Use this setting to switch the AdES component to the validation approach that was used in SBB 2020/SBB 2022 (less attention to temporal details).

**UseOCSPResponseObjectCaching**: Specifies whether reuse of loaded OCSP response objects is enabled.This setting enables or disables the caching of OCSP response objects. When set to true (the default value), the system checks if a OCSP response object is already loaded in memory before attempting to load a new instance. If the object is found, the existing instance is reused, and its reference count is incremented to track its usage. When the reference count reaches zero, indicating that no references to the object remain, the system will free the object from memory. This setting enhances performance by minimizing unnecessary object instantiation and promotes efficient memory management, particularly in scenarios where OCSP response objects are frequently used.

**UseOwnDNSResolver**: Specifies whether the client components should use own DNS resolver.Set this global property to false to force all the client components to use the DNS resolver provided by the target OS instead of using own one.

**UseSharedSystemStorages**: Specifies whether the validation engine should use a global per-process copy of the system certificate stores.Set this global property to false to make each validation run use its own copy of system certificate stores.

**UseSystemNativeSizeCalculation**: An internal CryptoAPI access tweak.This is an internal setting. Please do not use it unless instructed by the support team.

**UseSystemOAEPAndPSS**: Enforces or disables the use of system-driven RSA OAEP and PSS computations.This global setting defines who is responsible for performing RSA-OAEP and RSA-PSS computations where the private key is stored in a Windows system store and is exportable. If set to true, SBB will delegate the computations to Windows via a CryptoAPI call. Otherwise, it will export the key material and perform the computations using its own OAEP/PSS implementation.

This setting only applies to certificates originating from a Windows system store.

**UseSystemRandom**: Enables or disables the use of the OS PRNG.Use this global property to enable or disable the use of operating system-driven pseudorandom number generation.

**XMLRDNDescriptorName[OID]**: Defines an OID mapping to descriptor names for the certificate's IssuerRDN or SubjectRDN.This property defines custom mappings between Object Identifiers (OIDs) and descriptor names. This mapping specifies how the certificate's issuer and subject information (ds:IssuerRDN and ds:SubjectRDN elements respectively) are represented in XML signatures.

The property accepts comma-separated values where the first descriptor name is used when the OID is mapped, and subsequent values act as aliases for parsing.

Syntax:

```text
Config("XMLRDNDescriptorName[OID]=PrimaryName,Alias1,Alias2");
```

Where:

OID: The Object Identifier from the certificate's IssuerRDN or SubjectRDN that you want to map.

PrimaryName: The main descriptor name used in the XML signature when the OID is encountered.

Alias1, Alias2, ...: Optional alternative names recognized during parsing.

Usage Examples:

Map OID 2.5.4.5 to SERIALNUMBER:

```text
Config("XMLRDNDescriptorName[2.5.4.5]=SERIALNUMBER");
```

Map OID 1.2.840.113549.1.9.1 to E, with aliases EMAIL and EMAILADDRESS:

```text
Config("XMLRDNDescriptorName[1.2.840.113549.1.9.1]=E,EMAIL,EMAILADDRESS");
```

**XMLRDNDescriptorPriority[OID]**: Specifies the priority of descriptor names associated with a specific OID.This property specifies the priority of descriptor names associated with a specific OID that allows to reorder descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during signing.

**XMLRDNDescriptorReverseOrder**: Specifies whether to reverse the order of descriptors in RDN.Specifies whether to reverse the order of descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during XML signing. By default, this property is set to true (as specified in RFC 2253, 2.1).

**XMLRDNDescriptorSeparator**: Specifies the separator used between descriptors in RDN.Specifies the separator used between descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during XML signing. By default, this property is set to ", " value.

# Trappable Errors ([PDFVerifier](#pdfverifier-component) Component)

### PDFVerifier Errors

|  |  |
| --- | --- |
| 1048577 | Invalid parameter ([SB_ERROR_INVALID_PARAMETER](constants.md#const_SBERRORINVALIDPARAMETER)) |
| 1048578 | Invalid configuration ([SB_ERROR_INVALID_SETUP](constants.md#const_SBERRORINVALIDSETUP)) |
| 1048579 | Invalid state ([SB_ERROR_INVALID_STATE](constants.md#const_SBERRORINVALIDSTATE)) |
| 1048580 | Invalid value ([SB_ERROR_INVALID_VALUE](constants.md#const_SBERRORINVALIDVALUE)) |
| 1048581 | Private key not found ([SB_ERROR_NO_PRIVATE_KEY](constants.md#const_SBERRORNOPRIVATEKEY)) |
| 1048582 | Cancelled by the user ([SB_ERROR_CANCELLED_BY_USER](constants.md#const_SBERRORCANCELLEDBYUSER)) |
| 1048583 | The file was not found ([SB_ERROR_NO_SUCH_FILE](constants.md#const_SBERRORNOSUCHFILE)) |
| 1048584 | Unsupported feature or operation ([SB_ERROR_UNSUPPORTED_FEATURE](constants.md#const_SBERRORUNSUPPORTEDFEATURE)) |
| 1048585 | General error ([SB_ERROR_GENERAL_ERROR](constants.md#const_SBERRORGENERALERROR)) |
| 26214401 | The input file does not exist ([SB_ERROR_PDF_INPUTFILE_NOT_EXISTS](constants.md#const_SBERRORPDFINPUTFILENOTEXISTS)) |
| 26214402 | Cannot encrypt already encrypted file ([SB_ERROR_PDF_ENCRYPTED](constants.md#const_SBERRORPDFENCRYPTED)) |
| 26214403 | The file is not encrypted ([SB_ERROR_PDF_NOT_ENCRYPTED](constants.md#const_SBERRORPDFNOTENCRYPTED)) |
| 26214405 | Invalid password ([SB_ERROR_PDF_INVALID_PASSWORD](constants.md#const_SBERRORPDFINVALIDPASSWORD)) |
| 26214406 | Failed to decrypt the file ([SB_ERROR_PDF_DECRYPTION_FAILED](constants.md#const_SBERRORPDFDECRYPTIONFAILED)) |
| 26214407 | The document is signed ([SB_ERROR_PDF_SIGNED](constants.md#const_SBERRORPDFSIGNED)) |
| 26214408 | The document is not signed ([SB_ERROR_PDF_NOT_SIGNED](constants.md#const_SBERRORPDFNOTSIGNED)) |
| 26214409 | Cannot update this type of signature ([SB_ERROR_PDF_INAPPROPRIATE_SIGNATURE](constants.md#const_SBERRORPDFINAPPROPRIATESIGNATURE)) |
| 26214410 | Unsupported feature or operation ([SB_ERROR_PDF_NOT_SUPPORTED](constants.md#const_SBERRORPDFNOTSUPPORTED)) |
| 26214411 | No timestamp server specified ([SB_ERROR_PDF_NO_TIMESTAMP_SERVER](constants.md#const_SBERRORPDFNOTIMESTAMPSERVER)) |
| 26214412 | The component is not in edit mode ([SB_ERROR_PDF_READONLY](constants.md#const_SBERRORPDFREADONLY)) |