SignatureOptions.CertificatePolicy Property

Specifies the chain policy used to build an X509 certificate chain.

Namespace: DevExpress.Office.DigitalSignatures

Assembly: DevExpress.Docs.v23.2.dll

NuGet Package: DevExpress.Document.Processor

Declaration

C#

public X509ChainPolicy CertificatePolicy { get; set; }

VB.NET

Public Property CertificatePolicy As X509ChainPolicy

Property Value

Type	Description
X509ChainPolicy	An object that contains the X.509 certificate chain policy.

Remarks

C#

SignatureOptions options = new SignatureOptions();
options.Certificate =
 new X509Certificate2("Certificate/SignDemo.pfx", "dxdemo");

X509ChainPolicy policy = new X509ChainPolicy();
policy.RevocationMode = X509RevocationMode.NoCheck;
policy.RevocationFlag = X509RevocationFlag.ExcludeRoot;
policy.VerificationFlags |= X509VerificationFlags.AllowUnknownCertificateAuthority |
  X509VerificationFlags.IgnoreCertificateAuthorityRevocationUnknown;

options.CertificatePolicy = policy;
options.TimestampCertificatePolicy = policy;

VB.NET

Private Shared Function CreateSignatureOptions() As SignatureOptions
    Dim options As New SignatureOptions()
    options.Certificate = New X509Certificate2("Certificate/SignDemo.pfx", "dxdemo")

    options.SignatureFlags = options.SignatureFlags And Not SignatureFlags.ValidateCertificate
    options.CertificateKeyUsageFlags = X509KeyUsageFlags.None
    options.DigestMethod = hashAlgorithm

    Dim policy As New X509ChainPolicy()
    policy.RevocationMode = X509RevocationMode.NoCheck
    policy.RevocationFlag = X509RevocationFlag.ExcludeRoot
    policy.VerificationFlags = policy.VerificationFlags 
    Or X509VerificationFlags.AllowUnknownCertificateAuthority Or X509VerificationFlags.IgnoreCertificateAuthorityRevocationUnknown

    options.CertificatePolicy = policy
    options.TimestampCertificatePolicy = policy

    Return options
End Function

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the CertificatePolicy property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

word-document-api-sign-document-and-validate-signature/CS/WordDocumentDigitalSignatureSample/Program.cs#L49

    X509VerificationFlags.IgnoreCertificateAuthorityRevocationUnknown;
options.CertificatePolicy = policy;
options.TimestampCertificatePolicy = policy;

spreadsheet-document-api-sign-workbook-and-validate-signature/CS/WorkbookDigitalSignatureSample/Program.cs#L53

    X509VerificationFlags.IgnoreCertificateAuthorityRevocationUnknown;
options.CertificatePolicy = policy;
options.TimestampCertificatePolicy = policy;

VB.NET

word-document-api-sign-document-and-validate-signature/VB/WordDocumentDigitalSignatureSample/Program.vb#L44

policy.VerificationFlags = policy.VerificationFlags Or X509VerificationFlags.AllowUnknownCertificateAuthority Or X509VerificationFlags.IgnoreCertificateAuthorityRevocationUnknown
options.CertificatePolicy = policy
options.TimestampCertificatePolicy = policy

spreadsheet-document-api-sign-workbook-and-validate-signature/VB/WorkbookDigitalSignatureSample/Program.vb#L48

policy.VerificationFlags = policy.VerificationFlags Or X509VerificationFlags.AllowUnknownCertificateAuthority Or X509VerificationFlags.IgnoreCertificateAuthorityRevocationUnknown
options.CertificatePolicy = policy
options.TimestampCertificatePolicy = policy