JAdESVerifier Component

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The JAdESVerifier component verifies signatures over JSON objects.

Syntax

nsoftware.SecureBlackbox.JAdESVerifier

Remarks

Use JAdESVerifier to validate electronic signatures over JSON structures. Generic (JWS) and JAdES (JSON Advanced Electronic Signatures) are supported. JAdESVerifier verifier = new JAdESVerifier(); verifier.setInputFile("SignedFile.scs"); if (verifier.isDetached()){ // To verify a detached signature, we need // to provide both the signature and the original data verifier.setDataFile("MyExe.exe"); verifier.verify(); } else { // To verify an enveloping signature, we need // to provide the location to extract the data verifier.setOutputFile("output.exe"); verifier.verify(); } // The outcome of the cryptographic signature validation 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 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; } }

JAdESVerifier validates each signature from two perspectives: the integrity and validity of the signature itself (i.e. its correspondence to the JSON 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 round, 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 JSON file to the InputFile property (alternatively, you can provide it in a memory buffer via InputBytes or InputString property), and call Verify method. For every signature located in the document, JAdESVerifier will fire the SignatureFound event. This event lets you specify whether you want JAdESVerifier 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, to allow for a variety of validation scenarios. For example, if your trust environment relies on certificate pinning, validating the chain by JAdESVerifier internally may cause unnecessary burden on the system, in which case (but not in others!) it may be reasonable to disable it in the event handler.

Once SignatureFound returns, JAdESVerifier proceeds to the signature validation routine in accordance with the provided settings. Upon completion of the validation, SignatureValidated event is fired, and the validation results are separately provided via SignatureValidationResult and ChainValidationResult properties of the relevant signature object. Other information about the signature can be accessed via the Signatures property.

Useful settings and properties

The following properties of JAdESVerifier may be handy when working with this component:

• OfflineMode lets you validate the JSON object without contacting online revocation sources. Paired with switched off system trust settings, it can be used to establish the long-term validity of the signed object and the completeness of validation material included in it.
• RevocationCheck lets you adjust the revocation checking preferences.
• ValidatedSigningTime returns the signing time as recorded in the embedded signature timestamp. This is in contrast to ClaimedSigningTime, which returns the signing time as specified by the signer.
• ValidationLog 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.

By default, JAdESVerifier 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.

Method List

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

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.

Config Settings

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

AllSignaturesValid Property (JAdESVerifier Component)

The cumulative validity of all signatures.

Syntax

• C#
• VB.NET

public bool AllSignaturesValid { get; }

Public ReadOnly Property AllSignaturesValid As Boolean

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 and not available at design time.

AutoValidateSignatures Property (JAdESVerifier Component)

Specifies whether component should validate any present signatures when the JWS/JAdES signature is opened.

Syntax

• C#
• VB.NET

public bool AutoValidateSignatures { get; set; }

Public Property AutoValidateSignatures As Boolean

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 method.

BlockedCertificates Property (JAdESVerifier Component)

The certificates that must be rejected as trust anchors.

Syntax

• C#
• VB.NET

public CertificateList BlockedCertificates { get; }

Public Property BlockedCertificates As CertificateList

Remarks

Use this property to provide a list of compromised or blocked certificates. Any chain containing a blocked certificate will fail validation.

This property is not available at design time.

Certificates Property (JAdESVerifier Component)

A collection of certificates included in the electronic signature.

Syntax

• C#
• VB.NET

public CertificateList Certificates { get; }

Public ReadOnly Property Certificates As CertificateList

Remarks

This property includes a collection of certificates of the currently selected info.

This collection is indexed from 0 to count -1.

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

CheckTrustedLists Property (JAdESVerifier Component)

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

Syntax

• C#
• VB.NET

public bool CheckTrustedLists { get; set; }

Public Property CheckTrustedLists As Boolean

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).

CompactForm Property (JAdESVerifier Component)

Specifies if the JWS compact serialization to be used.

Syntax

• C#
• VB.NET

public bool CompactForm { get; set; }

Public Property CompactForm As Boolean

Default Value

False

Remarks

When this property is set to "true" value, the JAdES component will use the JWS compact serialization format when saving a signature.

The JWS compact serialization format is a compact, Url safe representation of a JWS (JSON Web Signature) or JWE (JSON Web Encryption) object, used for transmitting security tokens.

The JWS compact serialization format supports only one signature without unprotected header (only JWS or JAdES BaselineB signature).

ContentType Property (JAdESVerifier Component)

Specifies payload content type.

Syntax

• C#
• VB.NET

public string ContentType { get; }

Public ReadOnly Property ContentType As String

Default Value

""

Remarks

Use this property to read the content type of the payload.

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

CRLs Property (JAdESVerifier Component)

A collection of certificate revocation lists embedded into the signature by the signer.

Syntax

• C#
• VB.NET

public CRLList CRLs { get; }

Public ReadOnly Property CRLs As CRLList

Remarks

Use this property to access the CRLs embedded into the signature by the signer.

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

DataBytes Property (JAdESVerifier Component)

Use this property to pass a payload or an object data to component in the byte array form.

Syntax

• C#
• VB.NET

public byte[] DataBytes { get; set; }

Public Property DataBytes As Byte()

Remarks

Assign a byte array containing a JWS payload or an object data to be processed to this property.

This property is not available at design time.

DataFile Property (JAdESVerifier Component)

A path to a file containing a payload or an object data.

Syntax

• C#
• VB.NET

public string DataFile { get; set; }

Public Property DataFile As String

Default Value

""

Remarks

Use this property to provide a JWS payload or an object data to be processed.

DataStream Property (JAdESVerifier Component)

A stream containing a payload or an object data.

Syntax

• C#
• VB.NET

public System.IO.Stream DataStream { get; set; }

Public Property DataStream As System.IO.Stream

Default Value

null

Remarks

Use this property to provide a JWS payload or an object data to be processed.

This property is not available at design time.

DataString Property (JAdESVerifier Component)

Use this property to pass a payload or an object data to component in the string form.

Syntax

• C#
• VB.NET

public string DataString { get; set; }

Public Property DataString As String

Default Value

""

Remarks

Assign a string containing a JWS payload or an object data to be processed to this property.

This property is not available at design time.

Detached Property (JAdESVerifier Component)

Specifies whether a detached signature should be produced or verified.

Syntax

• C#
• VB.NET

public bool Detached { get; set; }

Public Property Detached As Boolean

Default Value

False

Remarks

Use this property to specify whether a detached signature should be produced or verified.

When this property is set to "true" value, the JWS payload will be detached from the signature and may either be a single detached object or the result of concatenating multiple detached data objects. In other words, the JWS payload and the signature are stored in separate objects.

If this property is set to "true" value, the user must provide the detached content via the DataFile or DataStream or DataBytes or DataString properties.

When Detached is set to "false" value, the JWS payload is included with the signature as a single object.

ExtractPayload Property (JAdESVerifier Component)

Specifies whether a payload should be extracted.

Syntax

• C#
• VB.NET

public bool ExtractPayload { get; set; }

Public Property ExtractPayload As Boolean

Default Value

False

Remarks

Use this property to specify whether a payload should be extracted when signature loaded. This applies only to non-detached signatures with a payload.

When this property is set to "true" value, the JWS payload will be extracted from the signature.

The user must provide the OutputFile or OutputStream properties with a filename or stream where to save the payload, if none is provided then payload is returned via OutputBytes or OutputString properties.

FIPSMode Property (JAdESVerifier Component)

Reserved.

Syntax

• C#
• VB.NET

public bool FIPSMode { get; set; }

Public Property FIPSMode As Boolean

Default Value

False

Remarks

This property is reserved for future use.

FlattenedSignature Property (JAdESVerifier Component)

Specifies if the flattened signature to be used.

Syntax

• C#
• VB.NET

public bool FlattenedSignature { get; set; }

Public Property FlattenedSignature As Boolean

Default Value

True

Remarks

This property determines whether to use the flattened JWS JSON serialization format. This format is optimized for the single digital signature case and flattens the general JWS JSON serialization syntax by removing the "signatures" member and instead placing the "protected", "header", and "signature" members at the top-level JSON object (at the same level as the "payload" member).

When the FlattenedSignature property is set to "true" value, the signature will be represented using the flattened JWS JSON serialization format, but it is only applicable when there is a single signature involved.

When the property is set to "false" value, the signature will be represented using the general JWS JSON serialization format.

IgnoreChainValidationErrors Property (JAdESVerifier Component)

Makes the component tolerant to chain validation errors.

Syntax

• C#
• VB.NET

public bool IgnoreChainValidationErrors { get; set; }

Public Property IgnoreChainValidationErrors As Boolean

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.

InputBytes Property (JAdESVerifier Component)

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

Syntax

• C#
• VB.NET

public byte[] InputBytes { get; set; }

Public Property InputBytes As Byte()

Remarks

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

This property is not available at design time.

InputFile Property (JAdESVerifier Component)

The file to be signed.

Syntax

• C#
• VB.NET

public string InputFile { get; set; }

Public Property InputFile As String

Default Value

""

Remarks

Provide the path to the JSON to be signed.

InputStream Property (JAdESVerifier Component)

Stream containing the JWS/JAdES signature.

Syntax

• C#
• VB.NET

public System.IO.Stream InputStream { get; set; }

Public Property InputStream As System.IO.Stream

Default Value

null

Remarks

Use this property to feed the JWS/JAdES signature to the component via a stream.

This property is not available at design time.

InputString Property (JAdESVerifier Component)

Use this property to pass the input to component in the string form.

Syntax

• C#
• VB.NET

public string InputString { get; set; }

Public Property InputString As String

Default Value

""

Remarks

Assign a string containing the data to be processed to this property.

This property is not available at design time.

KnownCertificates Property (JAdESVerifier Component)

Additional certificates for chain validation.

Syntax

• C#
• VB.NET

public CertificateList KnownCertificates { get; }

Public Property KnownCertificates As CertificateList

Remarks

Use this property to supply a list of additional certificates that might be needed for chain validation. An example of a scenario where you might want to do that is when intermediary CA certificates are absent from the standard system locations (or when there are no standard system locations), and therefore should be supplied to the component manually.

The purpose of the certificates to be added to this collection is roughly equivalent to that of the Intermediate Certification Authorities system store in Windows.

Do not add trust anchors or root certificates to this collection: add them to TrustedCertificates instead.

This property is not available at design time.

KnownCRLs Property (JAdESVerifier Component)

Additional CRLs for chain validation.

Syntax

• C#
• VB.NET

public CRLList KnownCRLs { get; }

Public Property KnownCRLs As CRLList

Remarks

Use this property to supply additional CRLs that might be needed for chain validation. This property may be helpful when a chain is validated in offline mode, and the associated CRLs are stored separately from the signed message or document.

This property is not available at design time.

KnownOCSPs Property (JAdESVerifier Component)

Additional OCSP responses for chain validation.

Syntax

• C#
• VB.NET

public OCSPResponseList KnownOCSPs { get; }

Public Property KnownOCSPs As OCSPResponseList

Remarks

Use this property to supply additional OCSP responses that might be needed for chain validation. This property may be helpful when a chain is validated in offline mode, and the associated OCSP responses are stored separately from the signed message or document.

This property is not available at design time.

OCSPs Property (JAdESVerifier Component)

A collection of OCSP responses embedded into the signature.

Syntax

• C#
• VB.NET

public OCSPResponseList OCSPs { get; }

Public ReadOnly Property OCSPs As OCSPResponseList

Remarks

Use this property to access the OCSP responses embedded into the signature by its creator.

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

OfflineMode Property (JAdESVerifier Component)

Switches the component to offline mode.

Syntax

• C#
• VB.NET

public bool OfflineMode { get; set; }

Public Property OfflineMode As Boolean

Default Value

False

Remarks

When working in offline mode, the component 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.

OutputBytes Property (JAdESVerifier Component)

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

Syntax

• C#
• VB.NET

public byte[] OutputBytes { get; }

Public ReadOnly Property OutputBytes As Byte()

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 and OutputStream properties had not been assigned.

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

OutputFile Property (JAdESVerifier Component)

Defines where to save the signature.

Syntax

• C#
• VB.NET

public string OutputFile { get; set; }

Public Property OutputFile As String

Default Value

""

Remarks

Specifies the path where the JWS/JAdES signature should be saved.

OutputStream Property (JAdESVerifier Component)

The stream where the signature would be saved.

Syntax

• C#
• VB.NET

public System.IO.Stream OutputStream { get; set; }

Public Property OutputStream As System.IO.Stream

Default Value

null

Remarks

Use this property to save the JWS/JAdES signature to the stream.

This property is not available at design time.

OutputString Property (JAdESVerifier Component)

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

Syntax

• C#
• VB.NET

public string OutputString { get; }

Public ReadOnly Property OutputString As String

Default Value

""

Remarks

Read the contents of this property after the operation is completed to read the produced output. This property will only be set if OutputFile and OutputStream properties had not been assigned.

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

Profile Property (JAdESVerifier Component)

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

Syntax

• C#
• VB.NET

public string Profile { get; set; }

Public Property Profile As String

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.

Proxy Property (JAdESVerifier Component)

The proxy server settings.

Syntax

• C#
• VB.NET

public ProxySettings Proxy { get; }

Public ReadOnly Property Proxy As ProxySettings

Remarks

Use this property to tune up the proxy server settings.

This property is read-only.

RevocationCheck Property (JAdESVerifier Component)

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

Syntax

• C#
• VB.NET

public JAdESVerifierRevocationChecks RevocationCheck { get; set; }

enum JAdESVerifierRevocationChecks {
  crcNone,
  crcAuto,
  crcAllCRL,
  crcAllOCSP,
  crcAllCRLAndOCSP,
  crcAnyCRL,
  crcAnyOCSP,
  crcAnyCRLOrOCSP,
  crcAnyOCSPOrCRL
}

Public Property RevocationCheck As JadesverifierRevocationChecks

Enum JAdESVerifierRevocationChecks
  crcNone
  crcAuto
  crcAllCRL
  crcAllOCSP
  crcAllCRLAndOCSP
  crcAnyCRL
  crcAnyOCSP
  crcAnyCRLOrOCSP
  crcAnyOCSPOrCRL
End Enum

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.

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.

Signatures Property (JAdESVerifier Component)

Provides details of all signatures found in the JWS/JAdES signature.

Syntax

• C#
• VB.NET

public JAdESSignatureList Signatures { get; }

Public ReadOnly Property Signatures As JAdESSignatureList

Remarks

Use this property to get the details of all the signatures identified in the JWS/JAdES signature.

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

SocketSettings Property (JAdESVerifier Component)

Manages network connection settings.

Syntax

• C#
• VB.NET

public SocketSettings SocketSettings { get; }

Public ReadOnly Property SocketSettings As SocketSettings

Remarks

Use this property to tune up network connection parameters.

This property is read-only.

Timestamps Property (JAdESVerifier Component)

Contains a collection of timestamps for the processed document.

Syntax

• C#
• VB.NET

public TimestampInfoList Timestamps { get; }

Public ReadOnly Property Timestamps As TimestampInfoList

Remarks

Use this property to access the timestamps included in the processed document.

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

TLSClientChain Property (JAdESVerifier Component)

The TLS client certificate chain.

Syntax

• C#
• VB.NET

public CertificateList TLSClientChain { get; }

Public Property TLSClientChain As CertificateList

Remarks

Assign a certificate chain to this property to enable TLS client authentication in the component. Note that the client's end-entity certificate should have a private key associated with it.

Use the CertificateStorage or CertificateManager components to import the certificate from a file, system store, or PKCS11 device.

This property is not available at design time.

TLSServerChain Property (JAdESVerifier Component)

The TLS server's certificate chain.

Syntax

• C#
• VB.NET

public CertificateList TLSServerChain { get; }

Public ReadOnly Property TLSServerChain As CertificateList

Remarks

Use this property to access the certificate chain sent by the TLS server. This property is ready to read when the TLSCertValidate event is fired by the client component.

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

TLSSettings Property (JAdESVerifier Component)

Manages TLS layer settings.

Syntax

• C#
• VB.NET

public TLSSettings TLSSettings { get; }

Public ReadOnly Property TLSSettings As TLSSettings

Remarks

Use this property to tune up the TLS layer parameters.

This property is read-only.

TrustedCertificates Property (JAdESVerifier Component)

A list of trusted certificates for chain validation.

Syntax

• C#
• VB.NET

public CertificateList TrustedCertificates { get; }

Public Property TrustedCertificates As CertificateList

Remarks

Use this property to supply a list of trusted certificates that might be needed for chain validation. An example of a scenario where you might want to do that is when root CA certificates are absent from the standard system locations (or when there are no standard system locations), and therefore should be supplied to the component manually.

The purpose of this certificate collection is largely the same as that of the Windows Trusted Root Certification Authorities system store.

Use this property with extreme care as it directly affects chain verifiability; a wrong certificate added to the trusted list may result in bad chains being accepted, and forfeited signatures being recognized as genuine. Only add certificates that originate from the parties that you know and trust.

This property is not available at design time.

ValidationMoment Property (JAdESVerifier Component)

The time point at which signature validity is to be established.

Syntax

• C#
• VB.NET

public string ValidationMoment { get; set; }

Public Property ValidationMoment As String

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.

Close Method (JAdESVerifier Component)

Closes an opened JWS/JAdES signature.

Syntax

• C#
• VB.NET

public void Close(bool saveChanges);

Public Sub Close(ByVal SaveChanges As Boolean)

Remarks

Use this method to close a previously opened JWS/JAdES signature. Set SaveChanges to true to apply any changes made.

Config Method (JAdESVerifier Component)

Sets or retrieves a configuration setting.

Syntax

• C#
• VB.NET

public string Config(string configurationString);

Public Function Config(ByVal ConfigurationString As String) As String

Remarks

Config is a generic method available in every component. It is used to set and retrieve configuration settings for the component.

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

DoAction Method (JAdESVerifier Component)

Performs an additional action.

Syntax

• C#
• VB.NET

public string DoAction(string actionID, string actionParams);

Public Function DoAction(ByVal ActionID As String, ByVal ActionParams As String) As String

Remarks

DoAction is a generic method available in every component. 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:

Open Method (JAdESVerifier Component)

Opens a JSON for verifying or removing signatures.

Syntax

• C#
• VB.NET

public void Open();

Public Sub Open()

Remarks

Use this method to open a JSON for verifying or removing signatures. When finished, call Close to complete or discard the operation.

Reset Method (JAdESVerifier Component)

Resets the component settings.

Syntax

• C#
• VB.NET

public void Reset();

Public Sub Reset()

Remarks

Reset is a generic method available in every component.

Revalidate Method (JAdESVerifier Component)

Revalidates a signature in accordance with current settings.

Syntax

• C#
• VB.NET

public void Revalidate(string sigLabel);

Public Sub Revalidate(ByVal SigLabel As String)

Remarks

Use this method to re-validate a signature in the opened JWS/JAdES signature.

SelectInfo Method (JAdESVerifier Component)

Select signature information for a specific entity.

Syntax

• C#
• VB.NET

public void SelectInfo(string entityLabel, int infoType, bool clearSelection);

Public Sub SelectInfo(ByVal EntityLabel As String, ByVal InfoType As Integer, ByVal ClearSelection As Boolean)

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:

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 (JAdESVerifier Component)

Deletes a signature from the JWS/JAdES signature.

Syntax

• C#
• VB.NET

public void Unsign(string sigLabel);

Public Sub Unsign(ByVal SigLabel As String)

Remarks

Use this method to delete an existing signature from the JWS/JAdES signature. Use SigLabel parameter to specify the signature to be removed.

Verify Method (JAdESVerifier Component)

Verifies the JWS/JAdES signature.

Syntax

• C#
• VB.NET

public void Verify();

Public Sub Verify()

Remarks

Use this method to verify the JWS/JAdES signature.

ChainElementDownload Event (JAdESVerifier Component)

Fires when there is a need to download a chain element from an online source.

Syntax

• C#
• VB.NET

public event OnChainElementDownloadHandler OnChainElementDownload;

public delegate void OnChainElementDownloadHandler(object sender, JAdESVerifierChainElementDownloadEventArgs e);

public class JAdESVerifierChainElementDownloadEventArgs : EventArgs {
  public int Kind { get; }
  public string CertRDN { get; }
  public string CACertRDN { get; }
  public string Location { get; }
  public int Action { get; set; }
}

Public Event OnChainElementDownload As OnChainElementDownloadHandler

Public Delegate Sub OnChainElementDownloadHandler(sender As Object, e As JAdESVerifierChainElementDownloadEventArgs)

Public Class JAdESVerifierChainElementDownloadEventArgs Inherits EventArgs
  Public ReadOnly Property Kind As Integer
  Public ReadOnly Property CertRDN As String
  Public ReadOnly Property CACertRDN As String
  Public ReadOnly Property Location As String
  Public Property Action As Integer
End Class

Remarks

Subscribe to this event to be notified about validation element retrievals. Use the Action parameter to suppress the download if required.

ChainElementNeeded Event (JAdESVerifier Component)

Fires when an element required to validate the chain was not located.

Syntax

• C#
• VB.NET

public event OnChainElementNeededHandler OnChainElementNeeded;

public delegate void OnChainElementNeededHandler(object sender, JAdESVerifierChainElementNeededEventArgs e);

public class JAdESVerifierChainElementNeededEventArgs : EventArgs {
  public int Kind { get; }
  public string CertRDN { get; }
  public string CACertRDN { get; }
}

Public Event OnChainElementNeeded As OnChainElementNeededHandler

Public Delegate Sub OnChainElementNeededHandler(sender As Object, e As JAdESVerifierChainElementNeededEventArgs)

Public Class JAdESVerifierChainElementNeededEventArgs Inherits EventArgs
  Public ReadOnly Property Kind As Integer
  Public ReadOnly Property CertRDN As String
  Public ReadOnly Property CACertRDN As String
End Class

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.

ChainElementStore Event (JAdESVerifier Component)

This event is fired when a chain element (certificate, CRL, or OCSP response) should be stored along with a signature.

Syntax

• C#
• VB.NET

public event OnChainElementStoreHandler OnChainElementStore;

public delegate void OnChainElementStoreHandler(object sender, JAdESVerifierChainElementStoreEventArgs e);

public class JAdESVerifierChainElementStoreEventArgs : EventArgs {
  public int Kind { get; }
  public byte[] Body { get; }
  public string URI { get; set; }
}

Public Event OnChainElementStore As OnChainElementStoreHandler

Public Delegate Sub OnChainElementStoreHandler(sender As Object, e As JAdESVerifierChainElementStoreEventArgs)

Public Class JAdESVerifierChainElementStoreEventArgs Inherits EventArgs
  Public ReadOnly Property Kind As Integer
  Public ReadOnly Property Body As Byte()
  Public Property URI As String
End Class

Remarks

This event could occur if you are verifying XAdES-C form or higher. The Body parameter contains the element in binary form that should be stored along with a signature. Use the URI parameter to provide an URI of the stored element.

ChainValidated Event (JAdESVerifier Component)

Reports the completion of a certificate chain validation.

Syntax

• C#
• VB.NET

public event OnChainValidatedHandler OnChainValidated;

public delegate void OnChainValidatedHandler(object sender, JAdESVerifierChainValidatedEventArgs e);

public class JAdESVerifierChainValidatedEventArgs : EventArgs {
  public int Index { get; }
  public string EntityLabel { get; }
  public string SubjectRDN { get; }
  public int ValidationResult { get; }
  public int ValidationDetails { get; }
  public bool Cancel { get; set; }
}

Public Event OnChainValidated As OnChainValidatedHandler

Public Delegate Sub OnChainValidatedHandler(sender As Object, e As JAdESVerifierChainValidatedEventArgs)

Public Class JAdESVerifierChainValidatedEventArgs Inherits EventArgs
  Public ReadOnly Property Index As Integer
  Public ReadOnly Property EntityLabel As String
  Public ReadOnly Property SubjectRDN As String
  Public ReadOnly Property ValidationResult As Integer
  Public ReadOnly Property ValidationDetails As Integer
  Public Property Cancel As Boolean
End Class

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.

ChainValidationProgress Event (JAdESVerifier Component)

This event is fired multiple times during chain validation to report various stages of the validation procedure.

Syntax

• C#
• VB.NET

public event OnChainValidationProgressHandler OnChainValidationProgress;

public delegate void OnChainValidationProgressHandler(object sender, JAdESVerifierChainValidationProgressEventArgs e);

public class JAdESVerifierChainValidationProgressEventArgs : EventArgs {
  public string EventKind { get; }
  public string CertRDN { get; }
  public string CACertRDN { get; }
  public int Action { get; set; }
}

Public Event OnChainValidationProgress As OnChainValidationProgressHandler

Public Delegate Sub OnChainValidationProgressHandler(sender As Object, e As JAdESVerifierChainValidationProgressEventArgs)

Public Class JAdESVerifierChainValidationProgressEventArgs Inherits EventArgs
  Public ReadOnly Property EventKind As String
  Public ReadOnly Property CertRDN As String
  Public ReadOnly Property CACertRDN As String
  Public Property Action As Integer
End Class

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.

Error Event (JAdESVerifier Component)

Information about errors during signing.

Syntax

• C#
• VB.NET

public event OnErrorHandler OnError;

public delegate void OnErrorHandler(object sender, JAdESVerifierErrorEventArgs e);

public class JAdESVerifierErrorEventArgs : EventArgs {
  public int ErrorCode { get; }
  public string Description { get; }
}

Public Event OnError As OnErrorHandler

Public Delegate Sub OnErrorHandler(sender As Object, e As JAdESVerifierErrorEventArgs)

Public Class JAdESVerifierErrorEventArgs Inherits EventArgs
  Public ReadOnly Property ErrorCode As Integer
  Public ReadOnly Property Description As String
End Class

Remarks

This event is fired in case of exceptional conditions during the JSON processing.

ErrorCode contains an error code and Description contains a textual description of the error.

HTTPHeaderFieldNeeded Event (JAdESVerifier Component)

This event is fired when HTTP header field value is required.

Syntax

• C#
• VB.NET

public event OnHTTPHeaderFieldNeededHandler OnHTTPHeaderFieldNeeded;

public delegate void OnHTTPHeaderFieldNeededHandler(object sender, JAdESVerifierHTTPHeaderFieldNeededEventArgs e);

public class JAdESVerifierHTTPHeaderFieldNeededEventArgs : EventArgs {
  public string FieldName { get; }
  public string FieldValues { get; set; }
}

Public Event OnHTTPHeaderFieldNeeded As OnHTTPHeaderFieldNeededHandler

Public Delegate Sub OnHTTPHeaderFieldNeededHandler(sender As Object, e As JAdESVerifierHTTPHeaderFieldNeededEventArgs)

Public Class JAdESVerifierHTTPHeaderFieldNeededEventArgs Inherits EventArgs
  Public ReadOnly Property FieldName As String
  Public Property FieldValues As String
End Class

Remarks

This event is triggered when the type of signed data is HttpHeaders mechanism (jasdtHttpHeaders). It indicates that a HTTP header field value is needed.

For "(request target)" field name value return request method and target URI seperated by space character. For example: "GET https://nsoftware.com/sbb/"

Loaded Event (JAdESVerifier Component)

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

Syntax

• C#
• VB.NET

public event OnLoadedHandler OnLoaded;

public delegate void OnLoadedHandler(object sender, JAdESVerifierLoadedEventArgs e);

public class JAdESVerifierLoadedEventArgs : EventArgs {
  public bool Cancel { get; set; }
}

Public Event OnLoaded As OnLoadedHandler

Public Delegate Sub OnLoadedHandler(sender As Object, e As JAdESVerifierLoadedEventArgs)

Public Class JAdESVerifierLoadedEventArgs Inherits EventArgs
  Public Property Cancel As Boolean
End Class

Remarks

The handler for this event is a good place to check JWS/JAdES signature properties, which may be useful when preparing the signature.

Set Cancel to true to terminate JSON processing on this stage.

Notification Event (JAdESVerifier Component)

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

Syntax

• C#
• VB.NET

public event OnNotificationHandler OnNotification;

public delegate void OnNotificationHandler(object sender, JAdESVerifierNotificationEventArgs e);

public class JAdESVerifierNotificationEventArgs : EventArgs {
  public string EventID { get; }
  public string EventParam { get; }
}

Public Event OnNotification As OnNotificationHandler

Public Delegate Sub OnNotificationHandler(sender As Object, e As JAdESVerifierNotificationEventArgs)

Public Class JAdESVerifierNotificationEventArgs Inherits EventArgs
  Public ReadOnly Property EventID As String
  Public ReadOnly Property EventParam As String
End Class

Remarks

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

This component can fire this event with the following EventID values:

ObjectNeeded Event (JAdESVerifier Component)

This event is fired when object is required.

Syntax

• C#
• VB.NET

public event OnObjectNeededHandler OnObjectNeeded;

public delegate void OnObjectNeededHandler(object sender, JAdESVerifierObjectNeededEventArgs e);

public class JAdESVerifierObjectNeededEventArgs : EventArgs {
  public string URI { get; }
  public string ContentType { get; }
  public bool Base64 { get; set; }
}

Public Event OnObjectNeeded As OnObjectNeededHandler

Public Delegate Sub OnObjectNeededHandler(sender As Object, e As JAdESVerifierObjectNeededEventArgs)

Public Class JAdESVerifierObjectNeededEventArgs Inherits EventArgs
  Public ReadOnly Property URI As String
  Public ReadOnly Property ContentType As String
  Public Property Base64 As Boolean
End Class

Remarks

This event is triggered when the type of signed data is ObjectIdByURI mechanism (jasdtObjectIdByURI). It is fired to request the data to be signed/verified.

The event handler must pass object data to the component via DataFile or DataStream or DataBytes or DataString property.

ObjectValidate Event (JAdESVerifier Component)

This event is fired when object should be verified by user.

Syntax

• C#
• VB.NET

public event OnObjectValidateHandler OnObjectValidate;

public delegate void OnObjectValidateHandler(object sender, JAdESVerifierObjectValidateEventArgs e);

public class JAdESVerifierObjectValidateEventArgs : EventArgs {
  public string URI { get; }
  public string ContentType { get; }
  public string HashAlgorithm { get; }
  public byte[] Hash { get; }
  public bool Base64 { get; }
  public bool Valid { get; set; }
}

Public Event OnObjectValidate As OnObjectValidateHandler

Public Delegate Sub OnObjectValidateHandler(sender As Object, e As JAdESVerifierObjectValidateEventArgs)

Public Class JAdESVerifierObjectValidateEventArgs Inherits EventArgs
  Public ReadOnly Property URI As String
  Public ReadOnly Property ContentType As String
  Public ReadOnly Property HashAlgorithm As String
  Public ReadOnly Property Hash As Byte()
  Public ReadOnly Property Base64 As Boolean
  Public Property Valid As Boolean
End Class

Remarks

This event is triggered when the type of signed data is ObjectIdByURIHash mechanism (jasdtObjectIdByURIHash). It is fired to validate the detached object.

The event handler must pass the object validity to the component via Valid parameter.

SignatureFound Event (JAdESVerifier Component)

Signifies the start of signature validation.

Syntax

• C#
• VB.NET

public event OnSignatureFoundHandler OnSignatureFound;

public delegate void OnSignatureFoundHandler(object sender, JAdESVerifierSignatureFoundEventArgs e);

public class JAdESVerifierSignatureFoundEventArgs : EventArgs {
  public int Index { get; }
  public string EntityLabel { get; }
  public string IssuerRDN { get; }
  public byte[] SerialNumber { get; }
  public byte[] SubjectKeyID { get; }
  public bool CertFound { get; }
  public bool ValidateSignature { get; set; }
  public bool ValidateChain { get; set; }
}

Public Event OnSignatureFound As OnSignatureFoundHandler

Public Delegate Sub OnSignatureFoundHandler(sender As Object, e As JAdESVerifierSignatureFoundEventArgs)

Public Class JAdESVerifierSignatureFoundEventArgs Inherits EventArgs
  Public ReadOnly Property Index As Integer
  Public ReadOnly Property EntityLabel As String
  Public ReadOnly Property IssuerRDN As String
  Public ReadOnly Property SerialNumber As Byte()
  Public ReadOnly Property SubjectKeyID As Byte()
  Public ReadOnly Property CertFound As Boolean
  Public Property ValidateSignature As Boolean
  Public Property ValidateChain As Boolean
End Class

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 component 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 SignatureValidationResult and ChainValidationResult properties respectively.

Use the ValidateSignature and ValidateChain parameters to tell the verifier which stages to include in the validation.

SignatureValidated Event (JAdESVerifier Component)

Marks the completion of the signature validation routine.

Syntax

• C#
• VB.NET

public event OnSignatureValidatedHandler OnSignatureValidated;

public delegate void OnSignatureValidatedHandler(object sender, JAdESVerifierSignatureValidatedEventArgs e);

public class JAdESVerifierSignatureValidatedEventArgs : EventArgs {
  public int Index { get; }
  public string EntityLabel { get; }
  public string IssuerRDN { get; }
  public byte[] SerialNumber { get; }
  public byte[] SubjectKeyID { get; }
  public int ValidationResult { get; }
  public bool Cancel { get; set; }
}

Public Event OnSignatureValidated As OnSignatureValidatedHandler

Public Delegate Sub OnSignatureValidatedHandler(sender As Object, e As JAdESVerifierSignatureValidatedEventArgs)

Public Class JAdESVerifierSignatureValidatedEventArgs Inherits EventArgs
  Public ReadOnly Property Index As Integer
  Public ReadOnly Property EntityLabel As String
  Public ReadOnly Property IssuerRDN As String
  Public ReadOnly Property SerialNumber As Byte()
  Public ReadOnly Property SubjectKeyID As Byte()
  Public ReadOnly Property ValidationResult As Integer
  Public Property Cancel As Boolean
End Class

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.

TimestampFound Event (JAdESVerifier Component)

Signifies the start of a timestamp validation routine.

Syntax

• C#
• VB.NET

public event OnTimestampFoundHandler OnTimestampFound;

public delegate void OnTimestampFoundHandler(object sender, JAdESVerifierTimestampFoundEventArgs e);

public class JAdESVerifierTimestampFoundEventArgs : EventArgs {
  public int Index { get; }
  public string EntityLabel { get; }
  public string IssuerRDN { get; }
  public byte[] SerialNumber { get; }
  public byte[] SubjectKeyID { get; }
  public bool CertFound { get; }
  public bool ValidateTimestamp { get; set; }
  public bool ValidateChain { get; set; }
}

Public Event OnTimestampFound As OnTimestampFoundHandler

Public Delegate Sub OnTimestampFoundHandler(sender As Object, e As JAdESVerifierTimestampFoundEventArgs)

Public Class JAdESVerifierTimestampFoundEventArgs Inherits EventArgs
  Public ReadOnly Property Index As Integer
  Public ReadOnly Property EntityLabel As String
  Public ReadOnly Property IssuerRDN As String
  Public ReadOnly Property SerialNumber As Byte()
  Public ReadOnly Property SubjectKeyID As Byte()
  Public ReadOnly Property CertFound As Boolean
  Public Property ValidateTimestamp As Boolean
  Public Property ValidateChain As Boolean
End Class

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 component 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 ValidationResult and ChainValidationResult properties respectively.

Use the ValidateSignature and ValidateChain parameters to tell the verifier which stages to include in the validation.

TimestampValidated Event (JAdESVerifier Component)

Reports the completion of the timestamp validation routine.

Syntax

• C#
• VB.NET

public event OnTimestampValidatedHandler OnTimestampValidated;

public delegate void OnTimestampValidatedHandler(object sender, JAdESVerifierTimestampValidatedEventArgs e);

public class JAdESVerifierTimestampValidatedEventArgs : EventArgs {
  public int Index { get; }
  public string EntityLabel { get; }
  public string IssuerRDN { get; }
  public byte[] SerialNumber { get; }
  public byte[] SubjectKeyID { get; }
  public string Time { get; }
  public int ValidationResult { get; }
  public int ChainValidationResult { get; }
  public int ChainValidationDetails { get; }
  public bool Cancel { get; set; }
}

Public Event OnTimestampValidated As OnTimestampValidatedHandler

Public Delegate Sub OnTimestampValidatedHandler(sender As Object, e As JAdESVerifierTimestampValidatedEventArgs)

Public Class JAdESVerifierTimestampValidatedEventArgs Inherits EventArgs
  Public ReadOnly Property Index As Integer
  Public ReadOnly Property EntityLabel As String
  Public ReadOnly Property IssuerRDN As String
  Public ReadOnly Property SerialNumber As Byte()
  Public ReadOnly Property SubjectKeyID As Byte()
  Public ReadOnly Property Time As String
  Public ReadOnly Property ValidationResult As Integer
  Public ReadOnly Property ChainValidationResult As Integer
  Public ReadOnly Property ChainValidationDetails As Integer
  Public Property Cancel As Boolean
End Class

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.

TLSCertNeeded Event (JAdESVerifier Component)

Fires when a remote TLS party requests a client certificate.

Syntax

• C#
• VB.NET

public event OnTLSCertNeededHandler OnTLSCertNeeded;

public delegate void OnTLSCertNeededHandler(object sender, JAdESVerifierTLSCertNeededEventArgs e);

public class JAdESVerifierTLSCertNeededEventArgs : EventArgs {
  public string Host { get; }
  public string CANames { get; }
}

Public Event OnTLSCertNeeded As OnTLSCertNeededHandler

Public Delegate Sub OnTLSCertNeededHandler(sender As Object, e As JAdESVerifierTLSCertNeededEventArgs)

Public Class JAdESVerifierTLSCertNeededEventArgs Inherits EventArgs
  Public ReadOnly Property Host As String
  Public ReadOnly Property CANames As String
End Class

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 event for the given host and, if the certificate was accepted, succeeded by the TLSEstablished event.

TLSCertValidate Event (JAdESVerifier Component)

This event is fired upon receipt of the TLS server's certificate, allowing the user to control its acceptance.

Syntax

• C#
• VB.NET

public event OnTLSCertValidateHandler OnTLSCertValidate;

public delegate void OnTLSCertValidateHandler(object sender, JAdESVerifierTLSCertValidateEventArgs e);

public class JAdESVerifierTLSCertValidateEventArgs : EventArgs {
  public string ServerHost { get; }
  public string ServerIP { get; }
  public bool Accept { get; set; }
}

Public Event OnTLSCertValidate As OnTLSCertValidateHandler

Public Delegate Sub OnTLSCertValidateHandler(sender As Object, e As JAdESVerifierTLSCertValidateEventArgs)

Public Class JAdESVerifierTLSCertValidateEventArgs Inherits EventArgs
  Public ReadOnly Property ServerHost As String
  Public ReadOnly Property ServerIP As String
  Public Property Accept As Boolean
End Class

Remarks

This event is fired during a TLS handshake. Use the TLSServerChain property to access the certificate chain. In general, components 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 component, and can be adjusted if needed.

TLSEstablished Event (JAdESVerifier Component)

Fires when a TLS handshake with Host successfully completes.

Syntax

• C#
• VB.NET

public event OnTLSEstablishedHandler OnTLSEstablished;

public delegate void OnTLSEstablishedHandler(object sender, JAdESVerifierTLSEstablishedEventArgs e);

public class JAdESVerifierTLSEstablishedEventArgs : EventArgs {
  public string Host { get; }
  public string Version { get; }
  public string Ciphersuite { get; }
  public byte[] ConnectionId { get; }
  public bool Abort { get; set; }
}

Public Event OnTLSEstablished As OnTLSEstablishedHandler

Public Delegate Sub OnTLSEstablishedHandler(sender As Object, e As JAdESVerifierTLSEstablishedEventArgs)

Public Class JAdESVerifierTLSEstablishedEventArgs Inherits EventArgs
  Public ReadOnly Property Host As String
  Public ReadOnly Property Version As String
  Public ReadOnly Property Ciphersuite As String
  Public ReadOnly Property ConnectionId As Byte()
  Public Property Abort As Boolean
End Class

Remarks

The component 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 (JAdESVerifier Component)

Fires when a new TLS handshake is initiated, before the handshake commences.

Syntax

• C#
• VB.NET

public event OnTLSHandshakeHandler OnTLSHandshake;

public delegate void OnTLSHandshakeHandler(object sender, JAdESVerifierTLSHandshakeEventArgs e);

public class JAdESVerifierTLSHandshakeEventArgs : EventArgs {
  public string Host { get; }
  public bool Abort { get; set; }
}

Public Event OnTLSHandshake As OnTLSHandshakeHandler

Public Delegate Sub OnTLSHandshakeHandler(sender As Object, e As JAdESVerifierTLSHandshakeEventArgs)

Public Class JAdESVerifierTLSHandshakeEventArgs Inherits EventArgs
  Public ReadOnly Property Host As String
  Public Property Abort As Boolean
End Class

Remarks

The component 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 event. If the server chooses to request a client certificate, the TLSCertNeeded event will also be fired.

TLSShutdown Event (JAdESVerifier Component)

Reports the graceful closure of a TLS connection.

Syntax

• C#
• VB.NET

public event OnTLSShutdownHandler OnTLSShutdown;

public delegate void OnTLSShutdownHandler(object sender, JAdESVerifierTLSShutdownEventArgs e);

public class JAdESVerifierTLSShutdownEventArgs : EventArgs {
  public string Host { get; }
}

Public Event OnTLSShutdown As OnTLSShutdownHandler

Public Delegate Sub OnTLSShutdownHandler(sender As Object, e As JAdESVerifierTLSShutdownEventArgs)

Public Class JAdESVerifierTLSShutdownEventArgs Inherits EventArgs
  Public ReadOnly Property Host As String
End Class

Remarks

This event notifies the application about the closure of an earlier established TLS connection. Note that only graceful connection closures are reported.

Certificate Type

Encapsulates an individual X.509 certificate.

Remarks

This type keeps and provides access to X.509 certificate details.

Fields

Constructors

• C#
• VB.NET

public Certificate(byte[] bytes, int startIndex, int count, string password);

Public Certificate(ByVal Bytes As Byte(), ByVal StartIndex As Integer, ByVal Count As Integer, ByVal Password As String)

• C#
• VB.NET

public Certificate(byte[] certBytes, int certStartIndex, int certCount, byte[] keyBytes, int keyStartIndex, int keyCount, string password);

Public Certificate(ByVal CertBytes As Byte(), ByVal CertStartIndex As Integer, ByVal CertCount As Integer, ByVal KeyBytes As Byte(), ByVal KeyStartIndex As Integer, ByVal KeyCount As Integer, ByVal Password As String)

• C#
• VB.NET

public Certificate(byte[] bytes, int startIndex, int count);

Public Certificate(ByVal Bytes As Byte(), ByVal StartIndex As Integer, ByVal Count As Integer)

• C#
• VB.NET

public Certificate(string path, string password);

Public Certificate(ByVal Path As String, ByVal Password As String)

• C#
• VB.NET

public Certificate(string certPath, string keyPath, string password);

Public Certificate(ByVal CertPath As String, ByVal KeyPath As String, ByVal Password As String)

• C#
• VB.NET

public Certificate(string path);

Public Certificate(ByVal Path As String)

• C#
• VB.NET

public Certificate(System.IO.Stream stream);

Public Certificate(ByVal Stream As System.IO.Stream)

• C#
• VB.NET

public Certificate(System.IO.Stream stream, string password);

Public Certificate(ByVal Stream As System.IO.Stream, ByVal Password As String)

• C#
• VB.NET

public Certificate(System.IO.Stream certStream, System.IO.Stream keyStream, string password);

Public Certificate(ByVal CertStream As System.IO.Stream, ByVal KeyStream As System.IO.Stream, ByVal Password As String)

• C#
• VB.NET

public Certificate();

Public Certificate()

CRL Type

Represents a Certificate Revocation List.

Remarks

CRLs store information about revoked certificates, i.e., certificates that have been identified as invalid by their issuing certificate authority (CA) for any number of reasons.

Each CRL object lists certificates from a single CA and identifies them by their serial numbers. A CA may or may not publish a CRL, may publish several CRLs, or may publish the same CRL in multiple locations.

Unlike OCSP responses, CRLs only list certificates that have been revoked. They do not list certificates that are still valid.

Fields

Constructors

• C#
• VB.NET

public CRL(byte[] bytes, int startIndex, int count);

Public CRL(ByVal Bytes As Byte(), ByVal StartIndex As Integer, ByVal Count As Integer)

• C#
• VB.NET

public CRL(string location);

Public CRL(ByVal Location As String)

• C#
• VB.NET

public CRL(System.IO.Stream stream);

Public CRL(ByVal Stream As System.IO.Stream)

• C#
• VB.NET

public CRL();

Public CRL()

JAdESSignature Type

The component is a container for an JWS/JAdES signature.

Remarks

JSON message may include any number of JWS/JAdES signatures. component stores one of them.

Fields

Constructors

• C#
• VB.NET

public JAdESSignature();

Public JAdESSignature()

OCSPResponse Type

Represents a single OCSP response originating from an OCSP responder.

Remarks

OCSP is a protocol that allows verification of certificate status in real-time, and is an alternative to Certificate Revocation Lists (CRLs).

An OCSP response is a snapshot of the certificate status at a given time.

Fields

Constructors

• C#
• VB.NET

public OCSPResponse(byte[] bytes, int startIndex, int count);

Public OCSPResponse(ByVal Bytes As Byte(), ByVal StartIndex As Integer, ByVal Count As Integer)

• C#
• VB.NET

public OCSPResponse(string location);

Public OCSPResponse(ByVal Location As String)

• C#
• VB.NET

public OCSPResponse(System.IO.Stream stream);

Public OCSPResponse(ByVal Stream As System.IO.Stream)

• C#
• VB.NET

public OCSPResponse();

Public OCSPResponse()

ProxySettings Type

A container for proxy server settings.

Remarks

This type exposes a collection of properties for tuning up the proxy server configuration.

Fields

Constructors

• C#
• VB.NET

public ProxySettings();

Public ProxySettings()

SocketSettings Type

A container for the socket settings.

Remarks

This type is a container for socket-layer parameters.