# PDFDecryptor Class

The PDFDecryptor class decrypts PDF documents.

## Class Name

**SecureBlackbox_PDFDecryptor**

## Procedural Interface

```text
 secureblackbox_pdfdecryptor_open();
 secureblackbox_pdfdecryptor_close($res);
 secureblackbox_pdfdecryptor_register_callback($res, $id, $function);
 secureblackbox_pdfdecryptor_get_last_error($res);
 secureblackbox_pdfdecryptor_get_last_error_code($res);
 secureblackbox_pdfdecryptor_set($res, $id, $index, $value);
 secureblackbox_pdfdecryptor_get($res, $id, $index);
 secureblackbox_pdfdecryptor_do_config($res, $configurationstring);
 secureblackbox_pdfdecryptor_do_decrypt($res);
 secureblackbox_pdfdecryptor_do_doaction($res, $actionid, $actionparams);
 secureblackbox_pdfdecryptor_do_reset($res);
```

## Remarks

PDFDecryptor decrypts PDF documents encrypted with passwords or certificates.

Use PDFDecryptor to decrypt protected PDF documents. The PDF specification offers two encryption types:

- Password-based encryption: only someone who knows the password can decrypt the document.
- Certificate-based encryption: only the person who has the private key matching the encryption certificate can decrypt the document.

Decryption is often used not only to restrict access to the document content, but also to assign specific access permissions. Among such permissions are allowed printing quality, permission to modify or extract content, to fill in forms, and a few others.

To decrypt a document encrypted with a password, simply assign the password to [Password](#password-property-secureblackbox_pdfdecryptor-class) property. If the provided password matches either one of the 'user' and 'owner' passwords, it will be used to decrypt the document. While PDF allows you to use different passwords for less-restricted owner and more-restricted user, this is rarely used in practice, with the majority of implementations sticking to the same password for both types of users.

To decrypt a document encrypted with a certificate, load the recipient's certificate using [CertificateManager](CertificateManager.md#CertificateManager) or [CertificateStorage](CertificateStorage.md#CertificateStorage) components and assign it to the DecryptionCertificate property. The certificate needs to include the associated private key.

You can assign the decryption material before processing the document (if you know beforehand what type of encryption was used), or on-the-fly, upon discovery that a particular document is encrypted. To implement the latter approach, please subscribe to [Encrypted](#encrypted-event-secureblackbox_pdfdecryptor-class) event. This event can fire for one or more times, notifying you of each encryption method that was used to protect the document. You can then assign the password or certificate inside the event handler accordingly.

Once you have decrypted the document, use the > property to check the document permissions, and other properties of the DocumentInfo object to find out the encryption details.

Finally, provide the input and output locations using [InputFile](#inputfile-property-secureblackbox_pdfdecryptor-class) (or [InputBytes](#inputbytes-property-secureblackbox_pdfdecryptor-class)) and [OutputFile](#outputfile-property-secureblackbox_pdfdecryptor-class) properties and call the [Decrypt](#decrypt-method-secureblackbox_pdfdecryptor-class) method to complete the operation. If [OutputFile](#outputfile-property-secureblackbox_pdfdecryptor-class) is not assigned, the encrypted document will be generated in [OutputBytes](#outputbytes-property-secureblackbox_pdfdecryptor-class).

```text
  decryptor.InputFile = "encrypted.pdf";
  decryptor.OutputFile = "decrypted.pdf";
  decryptor.Password = "password";
  decryptor.Decrypt();
```

## Property List

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

|  |  |
| --- | --- |
| [DecryptionCertificateBytes](#decryptioncertificatebytes-property-secureblackbox_pdfdecryptor-class) | Returns the raw certificate data in DER format. |
| [DecryptionCertificateHandle](#decryptioncertificatehandle-property-secureblackbox_pdfdecryptor-class) | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| [DocumentInfoEncryptionAlgorithm](#documentinfoencryptionalgorithm-property-secureblackbox_pdfdecryptor-class) | The symmetric algorithm used to encrypt the document. |
| [DocumentInfoEncryptionType](#documentinfoencryptiontype-property-secureblackbox_pdfdecryptor-class) | The document encryption type. |
| [DocumentInfoMetadataEncrypted](#documentinfometadataencrypted-property-secureblackbox_pdfdecryptor-class) | Indicates if the document metadata is encrypted. |
| [DocumentInfoPermissions](#documentinfopermissions-property-secureblackbox_pdfdecryptor-class) | Contains the document permissions associated with the encryption. |
| [ExternalCryptoAsyncDocumentID](#externalcryptoasyncdocumentid-property-secureblackbox_pdfdecryptor-class) | Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls. |
| [ExternalCryptoCustomParams](#externalcryptocustomparams-property-secureblackbox_pdfdecryptor-class) | Custom parameters to be passed to the signing service (uninterpreted). |
| [ExternalCryptoData](#externalcryptodata-property-secureblackbox_pdfdecryptor-class) | Additional data to be included in the async state and mirrored back by the requestor. |
| [ExternalCryptoExternalHashCalculation](#externalcryptoexternalhashcalculation-property-secureblackbox_pdfdecryptor-class) | Specifies whether the message hash is to be calculated at the external endpoint. |
| [ExternalCryptoHashAlgorithm](#externalcryptohashalgorithm-property-secureblackbox_pdfdecryptor-class) | Specifies the request's signature hash algorithm. |
| [ExternalCryptoKeyID](#externalcryptokeyid-property-secureblackbox_pdfdecryptor-class) | The ID of the pre-shared key used for DC request authentication. |
| [ExternalCryptoKeySecret](#externalcryptokeysecret-property-secureblackbox_pdfdecryptor-class) | The pre-shared key used for DC request authentication. |
| [ExternalCryptoMethod](#externalcryptomethod-property-secureblackbox_pdfdecryptor-class) | Specifies the asynchronous signing method. |
| [ExternalCryptoMode](#externalcryptomode-property-secureblackbox_pdfdecryptor-class) | Specifies the external cryptography mode. |
| [ExternalCryptoPublicKeyAlgorithm](#externalcryptopublickeyalgorithm-property-secureblackbox_pdfdecryptor-class) | Provide the public key algorithm here if the certificate is not available on the pre-signing stage. |
| [FIPSMode](#fipsmode-property-secureblackbox_pdfdecryptor-class) | Reserved. |
| [InputBytes](#inputbytes-property-secureblackbox_pdfdecryptor-class) | Use this property to pass the input to class in byte array form. |
| [InputFile](#inputfile-property-secureblackbox_pdfdecryptor-class) | The PDF file to be decrypted. |
| [OutputBytes](#outputbytes-property-secureblackbox_pdfdecryptor-class) | Use this property to read the output the class object has produced. |
| [OutputFile](#outputfile-property-secureblackbox_pdfdecryptor-class) | The file to save the decrypted document to. |
| [Password](#password-property-secureblackbox_pdfdecryptor-class) | The decryption password. |

## Method List

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

|  |  |
| --- | --- |
| [Config](#config-method-secureblackbox_pdfdecryptor-class) | Sets or retrieves a configuration setting. |
| [Decrypt](#decrypt-method-secureblackbox_pdfdecryptor-class) | Decrypts a PDF document. |
| [DoAction](#doaction-method-secureblackbox_pdfdecryptor-class) | Performs an additional action. |
| [Reset](#reset-method-secureblackbox_pdfdecryptor-class) | Resets the class settings. |

## Event List

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

|  |  |
| --- | --- |
| [DocumentLoaded](#documentloaded-event-secureblackbox_pdfdecryptor-class) | This event is fired when the document has been loaded into memory. |
| [Encrypted](#encrypted-event-secureblackbox_pdfdecryptor-class) | 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-secureblackbox_pdfdecryptor-class) | Information about errors during signing/validation. |
| [ExternalDecrypt](#externaldecrypt-event-secureblackbox_pdfdecryptor-class) | Handles remote or external decryption. |
| [Notification](#notification-event-secureblackbox_pdfdecryptor-class) | This event notifies the application about an underlying control flow event. |

## Config Settings

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

|  |  |
| --- | --- |
| [DocumentVersion](#DocumentVersion) | The document version from the PDF document header. |
| [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. |
| [EncryptionHandlerName](#EncryptionHandlerName) | Specifies the custom security handler PDF-name. |
| [HardenedKeyGeneration](#HardenedKeyGeneration) | Specifies if hardened Key generation should be used. |
| [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. |
| [RC4KeyBits](#RC4KeyBits) | Specifies the number of key bits used for the RC4 algorithm. |
| [TempPath](#TempPath) | Path for storing temporary files. |
| [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. |

# DecryptionCertificateBytes Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Returns the raw certificate data in DER format.

## Object Oriented Interface

```text
public function getDecryptionCertificateBytes();
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 1 );
```

## Remarks

Returns the raw certificate data in DER format.

This property is read-only and not available at design time.

## Data Type

Byte Array

# DecryptionCertificateHandle Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

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

## Object Oriented Interface

```text
public function getDecryptionCertificateHandle();
public function setDecryptionCertificateHandle($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 9 );
secureblackbox_pdfdecryptor_set($res, 9, $value );
```

## 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());
```

This property is not available at design time.

## Data Type

Long64

# DocumentInfoEncryptionAlgorithm Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

The symmetric algorithm used to encrypt the document.

## Object Oriented Interface

```text
public function getDocumentInfoEncryptionAlgorithm();
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 40 );
```

## 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 and not available at design time.

## Data Type

String

# DocumentInfoEncryptionType Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

The document encryption type.

## Object Oriented Interface

```text
public function getDocumentInfoEncryptionType();
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 41 );
```

## Possible Values

```text
PDFDECRYPTOR_DOCUMENTINFOENCRYPTIONTYPE_NONE(0), PDFDECRYPTOR_DOCUMENTINFOENCRYPTIONTYPE_PASSWORD(1), PDFDECRYPTOR_DOCUMENTINFOENCRYPTIONTYPE_CERTIFICATE(2)
```

## 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 and not available at design time.

## Data Type

Integer

# DocumentInfoMetadataEncrypted Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Indicates if the document metadata is encrypted.

## Object Oriented Interface

```text
public function getDocumentInfoMetadataEncrypted();
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 42 );
```

## 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 and not available at design time.

## Data Type

Boolean

# DocumentInfoPermissions Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Contains the document permissions associated with the encryption.

## Object Oriented Interface

```text
public function getDocumentInfoPermissions();
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 43 );
```

## 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 and not available at design time.

## Data Type

Integer

# ExternalCryptoAsyncDocumentID Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.

## Object Oriented Interface

```text
public function getExternalCryptoAsyncDocumentID();
public function setExternalCryptoAsyncDocumentID($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 44 );
secureblackbox_pdfdecryptor_set($res, 44, $value );
```

## Default Value

''

## Remarks

Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.

Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch. On the completion stage, this value helps the signing component 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 the pre-signing (SignAsyncBegin) and completion (SignAsyncEnd) stages.

## Data Type

String

# ExternalCryptoCustomParams Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Custom parameters to be passed to the signing service (uninterpreted).

## Object Oriented Interface

```text
public function getExternalCryptoCustomParams();
public function setExternalCryptoCustomParams($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 45 );
secureblackbox_pdfdecryptor_set($res, 45, $value );
```

## Default Value

''

## Remarks

Custom parameters to be passed to the signing service (uninterpreted).

This property is not available at design time.

## Data Type

String

# ExternalCryptoData Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Additional data to be included in the async state and mirrored back by the requestor.

## Object Oriented Interface

```text
public function getExternalCryptoData();
public function setExternalCryptoData($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 46 );
secureblackbox_pdfdecryptor_set($res, 46, $value );
```

## Default Value

''

## Remarks

Additional data to be included in the async state and mirrored back by the requestor.

This property is not available at design time.

## Data Type

String

# ExternalCryptoExternalHashCalculation Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Specifies whether the message hash is to be calculated at the external endpoint.

## Object Oriented Interface

```text
public function getExternalCryptoExternalHashCalculation();
public function setExternalCryptoExternalHashCalculation($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 47 );
secureblackbox_pdfdecryptor_set($res, 47, $value );
```

## Default Value

false

## Remarks

Specifies whether the message hash is to be calculated at the external endpoint. Please note that this mode is not supported by the DCAuth class.

If set to true, the class will pass a few kilobytes of to-be-signed data from the document to the OnExternalSign event. This only applies when SignExternal() is called.

## Data Type

Boolean

# ExternalCryptoHashAlgorithm Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Specifies the request's signature hash algorithm.

## Object Oriented Interface

```text
public function getExternalCryptoHashAlgorithm();
public function setExternalCryptoHashAlgorithm($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 48 );
secureblackbox_pdfdecryptor_set($res, 48, $value );
```

## Default Value

'SHA256'

## Remarks

Specifies the request's signature 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 |  |

## Data Type

String

# ExternalCryptoKeyID Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

The ID of the pre-shared key used for DC request authentication.

## Object Oriented Interface

```text
public function getExternalCryptoKeyID();
public function setExternalCryptoKeyID($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 49 );
secureblackbox_pdfdecryptor_set($res, 49, $value );
```

## Default Value

''

## Remarks

The ID of the pre-shared key used for DC request authentication.

Asynchronous DCAuth-driven communication requires that parties authenticate each other with a secret pre-shared cryptographic key. This provides an extra protection layer for the protocol and diminishes the risk of the private key becoming abused by foreign parties. Use this property to provide the pre-shared key identifier, and use [ExternalCryptoKeySecret](#externalcryptokeysecret-property-secureblackbox_pdfdecryptor-class) to pass the key itself.

The same KeyID/KeySecret pair should be used on the DCAuth side for the signing requests to be accepted.

Note: The KeyID/KeySecret scheme is very similar to the AuthKey scheme used in various Cloud service providers to authenticate users.

Example:

```text
  signer.ExternalCrypto.KeyID = "MainSigningKey";
  signer.ExternalCrypto.KeySecret = "abcdef0123456789";
```

## Data Type

String

# ExternalCryptoKeySecret Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

The pre-shared key used for DC request authentication.

## Object Oriented Interface

```text
public function getExternalCryptoKeySecret();
public function setExternalCryptoKeySecret($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 50 );
secureblackbox_pdfdecryptor_set($res, 50, $value );
```

## Default Value

''

## Remarks

The pre-shared key used for DC request authentication. This key must be set and match the key used by the DCAuth counterpart for the scheme to work.

Read more about configuring authentication in the [ExternalCryptoKeyID](#externalcryptokeyid-property-secureblackbox_pdfdecryptor-class) topic.

## Data Type

String

# ExternalCryptoMethod Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Specifies the asynchronous signing method.

## Object Oriented Interface

```text
public function getExternalCryptoMethod();
public function setExternalCryptoMethod($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 51 );
secureblackbox_pdfdecryptor_set($res, 51, $value );
```

## Possible Values

```text
PDFDECRYPTOR_EXTERNALCRYPTOMETHOD_PKCS1(0), PDFDECRYPTOR_EXTERNALCRYPTOMETHOD_PKCS7(1)
```

## Default Value

0

## Remarks

Specifies the asynchronous signing method. This is typically defined by the DC server capabilities and setup.

Available options:

|  |  |
| --- | --- |
| asmdPKCS1 | 0 |
| asmdPKCS7 | 1 |

## Data Type

Integer

# ExternalCryptoMode Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Specifies the external cryptography mode.

## Object Oriented Interface

```text
public function getExternalCryptoMode();
public function setExternalCryptoMode($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 52 );
secureblackbox_pdfdecryptor_set($res, 52, $value );
```

## Possible Values

```text
PDFDECRYPTOR_EXTERNALCRYPTOMODE_DEFAULT(0), PDFDECRYPTOR_EXTERNALCRYPTOMODE_DISABLED(1), PDFDECRYPTOR_EXTERNALCRYPTOMODE_GENERIC(2), PDFDECRYPTOR_EXTERNALCRYPTOMODE_DCAUTH(3), PDFDECRYPTOR_EXTERNALCRYPTOMODE_DCAUTH_JSON(4)
```

## Default Value

0

## Remarks

Specifies the external cryptography mode.

Available options:

|  |  |
| --- | --- |
| ecmDefault | The default value (0) |
| ecmDisabled | Do not use DC or external signing (1) |
| ecmGeneric | Generic external signing with the OnExternalSign event (2) |
| ecmDCAuth | DCAuth signing (3) |
| ecmDCAuthJSON | DCAuth signing in JSON format (4) |

This property is not available at design time.

## Data Type

Integer

# ExternalCryptoPublicKeyAlgorithm Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Provide the public key algorithm here if the certificate is not available on the pre-signing stage.

## Object Oriented Interface

```text
public function getExternalCryptoPublicKeyAlgorithm();
public function setExternalCryptoPublicKeyAlgorithm($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 53 );
secureblackbox_pdfdecryptor_set($res, 53, $value );
```

## Default Value

''

## Remarks

Provide the public key algorithm here if the certificate is not available on the pre-signing stage.

|  |  |  |
| --- | --- | --- |
| 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 |  |

## Data Type

String

# FIPSMode Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Reserved.

## Object Oriented Interface

```text
public function getFIPSMode();
public function setFIPSMode($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 54 );
secureblackbox_pdfdecryptor_set($res, 54, $value );
```

## Default Value

false

## Remarks

This property is reserved for future use.

## Data Type

Boolean

# InputBytes Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

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

## Object Oriented Interface

```text
public function getInputBytes();
public function setInputBytes($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 55 );
secureblackbox_pdfdecryptor_set($res, 55, $value );
```

## Remarks

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

This property is not available at design time.

## Data Type

Byte Array

# InputFile Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

The PDF file to be decrypted.

## Object Oriented Interface

```text
public function getInputFile();
public function setInputFile($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 56 );
secureblackbox_pdfdecryptor_set($res, 56, $value );
```

## Default Value

''

## Remarks

Provide the path to the PDF document to be decrypted.

## Data Type

String

# OutputBytes Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

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

## Object Oriented Interface

```text
public function getOutputBytes();
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 57 );
```

## 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-secureblackbox_pdfdecryptor-class) and OutputStream properties had not been assigned.

This property is read-only and not available at design time.

## Data Type

Byte Array

# OutputFile Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

The file to save the decrypted document to.

## Object Oriented Interface

```text
public function getOutputFile();
public function setOutputFile($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 58 );
secureblackbox_pdfdecryptor_set($res, 58, $value );
```

## Default Value

''

## Remarks

Specifies the path where the decrypted PDF should be saved.

## Data Type

String

# Password Property ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

The decryption password.

## Object Oriented Interface

```text
public function getPassword();
public function setPassword($value);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_get($res, 59 );
secureblackbox_pdfdecryptor_set($res, 59, $value );
```

## Default Value

''

## Remarks

Use this property to provide the decryption password.

## Data Type

String

# Config Method ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Sets or retrieves a configuration setting.

## Object Oriented Interface

```text
public function doConfig($configurationstring);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_do_config($res, $configurationstring);
```

## Remarks

Config is a generic method available in every class. It is used to set and retrieve [configuration settings](#config-settings-pdfdecryptor-class) for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, 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-pdfdecryptor-class), you must call *Config("PROPERTY")*. The value will be returned as a string.

# Decrypt Method ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Decrypts a PDF document.

## Object Oriented Interface

```text
public function doDecrypt();
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_do_decrypt($res);
```

## Remarks

Use this method to decrypt a PDF document provided via [InputFile](#inputfile-property-secureblackbox_pdfdecryptor-class) (InputStream). The decrypted document will be saved in [OutputFile](#outputfile-property-secureblackbox_pdfdecryptor-class) (OutputStream).

# DoAction Method ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Performs an additional action.

## Object Oriented Interface

```text
public function doDoAction($actionid, $actionparams);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_do_doaction($res, $actionid, $actionparams);
```

## Remarks

DoAction is a generic method available in every class. 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. |

# Reset Method ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Resets the class settings.

## Object Oriented Interface

```text
public function doReset();
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_do_reset($res);
```

## Remarks

Reset is a generic method available in every class.

# DocumentLoaded Event ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

This event is fired when the document has been loaded into memory.

## Object Oriented Interface

```text
public function fireDocumentLoaded($param);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_register_callback($res, 1, array($this, 'fireDocumentLoaded'));
```

## Parameter List

```text
 'cancel'
```

## 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 ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Notifies the application that the document is encrypted and provides recipient certificate details if asymmetric encryption was used to encrypt the document.

## Object Oriented Interface

```text
public function fireEncrypted($param);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_register_callback($res, 2, array($this, 'fireEncrypted'));
```

## Parameter List

```text
 'certused' 'issuerrdn' 'serialnumber' 'subjectkeyid' 'needcredential' 'skipthis'
```

## Remarks

The class 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-secureblackbox_pdfdecryptor-class) 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-secureblackbox_pdfdecryptor-class) property.

The *NeedCredential* parameter specifies whether the correct credential is already available to the class 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-secureblackbox_pdfdecryptor-class) 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 ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Information about errors during signing/validation.

## Object Oriented Interface

```text
public function fireError($param);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_register_callback($res, 3, array($this, 'fireError'));
```

## Parameter List

```text
 'errorcode' 'description'
```

## 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.

# ExternalDecrypt Event ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

Handles remote or external decryption.

## Object Oriented Interface

```text
public function fireExternalDecrypt($param);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_register_callback($res, 4, array($this, 'fireExternalDecrypt'));
```

## Parameter List

```text
 'operationid' 'algorithm' 'pars' 'encrypteddata' 'data'
```

## Remarks

Assign a handler to this event if you need to delegate a low-level decryption operation to an external, remote, or custom decryption engine. The handler receives an encrypted value in the *EncryptedData* parameter, and is expected to decrypt it and place the decrypted value into the *Data* parameter.

*OperationId* provides a comment about the operation and its origin. It depends on the exact class being used, and may be empty. *Algorithm* specifies the encryption algorithm being used, and *Pars* contains algorithm-dependent parameters.

The class uses base16 (hex) encoding for the *EncryptedData*, *Data*, and *Pars* parameters. If your decryption engine uses a different input and output encoding, you may need to decode and/or encode the data before and/or after the decryption.

Sample data encoded in base16: a0dee2a0382afbb09120ffa7ccd8a152 - lower case base16 A0DEE2A0382AFBB09120FFA7CCD8A152 - upper case base16

# Notification Event ([SecureBlackbox_PDFDecryptor](#pdfdecryptor-class) Class)

This event notifies the application about an underlying control flow event.

## Object Oriented Interface

```text
public function fireNotification($param);
```

## Procedural Interface

```text
secureblackbox_pdfdecryptor_register_callback($res, 5, array($this, 'fireNotification'));
```

## Parameter List

```text
 'eventid' 'eventparam'
```

## Remarks

The class fires this event to let the application know about some event, occurrence, or milestone in the class. 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 class, the exact action it is performing, or the document being processed, one or both may be omitted.

This class 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. |

# Config Settings ([PDFDecryptor](#pdfdecryptor-class) Class)

 The class 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 class, access to these *internal properties* is provided through the [Config](#config-method-secureblackbox_pdfdecryptor-class) method.

### PDFDecryptor Config Settings

**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".

**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 and Close methods, or in [DocumentLoaded](#documentloaded-event-secureblackbox_pdfdecryptor-class) 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.

**EncryptionHandlerName**: Specifies the custom security handler PDF-name.Specifies the custom security handler PDF-name for the encryption handler.

**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.

**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.

**RC4KeyBits**: Specifies the number of key bits used for the RC4 algorithm.Specifies the number of key bits used for the RC4 encryption algorithm.

**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.

**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 class.

Supported values are:

|  |  |  |
| --- | --- | --- |
| off |  | No caching (default) |
| local |  | Local caching |
| global |  | Global caching |

**Cookies**: Gets or sets local cookies for the class.Use this property to get cookies from the internal cookie storage of the class 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 classes 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 classes.

**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 class. 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 class) 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 class is set to "*local*", the property returns/restores the rules from/to the internal storage of the class. If *StaticDNS* of the class 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 classes.

**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 ([PDFDecryptor](#pdfdecryptor-class) Class)

### PDFDecryptor 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)) |