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V24.2

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PdfLtvResult.CertificateRevocationResults Property

Gets signature certificate revocation results when you request Long Term Validation (LTV) information.

Namespace: DevExpress.Pdf

Assembly: DevExpress.Docs.v24.2.dll

NuGet Package: DevExpress.Document.Processor

#Declaration

public IDictionary<X509Certificate2, PdfCertificateRevocationResult> CertificateRevocationResults { get; }

#Property Value

Type Description
IDictionary<X509Certificate2, PdfCertificateRevocationResult>

A collection of PdfCertificateRevocationResult objects that contain information about signature certificate revocation.

#Remarks

The following example executes an LTV check for a signature from the “Signed_file.pdf” file:

using DevExpress.Office.DigitalSignatures;

namespace ConsoleApp {
    internal class Program {
        static void Main(string[] args) {
            VerifyLTV();
        }
        public static void VerifyLTV(){
            using (PdfDocumentSigner documentSigner = new PdfDocumentSigner("Signed_file.pdf")){
                PdfLtvOptions options = new PdfLtvOptions(){
                    TryFetchCrlOnline = true,
                    TryFetchOcspOnline = true,
                    VerifyEntireCertificateChain = true,
                };
                var result = documentSigner.VerifyLtv(options);
                foreach (var entry in result){
                    Console.WriteLine("Signature Name: {0}", entry.SignatureFieldName);
                    Console.WriteLine("Certificate in chain: {0}", entry.CertificateRevocationResults.Count);
                    foreach(var revocation in entry.CertificateRevocationResults){
                        Console.WriteLine("Certificate {0}", revocation.Key.Subject);
                        Console.WriteLine("Is certificate revoked?: {0}", revocation.Value.IsCrlRevoked);
                        if (revocation.Value.IsCrlRevoked)
                            Console.WriteLine("Is CRL found online?: {0}", revocation.Value.IsCrlFoundOnline);
                        Console.WriteLine("OCSP Response Status: {0}", revocation.Value.OcspRevocationStatus);
                        if (revocation.Value.OcspRevocationStatus != PdfOcspRevocationStatus.None)
                            Console.WriteLine("Is OCSP found online?: {0}", revocation.Value.IsOcspFoundOnline);
                        Console.WriteLine();
                    }
                }
            }
        }
    }
}       
See Also