iTextSharp.text.pdf.security.CrlVerifier.Verify C# (CSharp) Méthode

        public override List<VerificationOK> Verify(X509Certificate signCert, X509Certificate issuerCert, DateTime signDate)
        {
            List<VerificationOK> result = new List<VerificationOK>();
            int validCrlsFound = 0;
            // first check the list of CRLs that is provided
            if (crls != null) {
                foreach (X509Crl crl in crls) {
                    if (Verify(crl, signCert, issuerCert, signDate))
                        validCrlsFound++;
                }
            }
            // then check online if allowed
            bool online = false;
            if (onlineCheckingAllowed && validCrlsFound == 0) {
                if (Verify(GetCrl(signCert, issuerCert), signCert, issuerCert, signDate)) {
                    validCrlsFound++;
                    online = true;
                }
            }
            // show how many valid CRLs were found
            LOGGER.Info("Valid CRLs found: " + validCrlsFound);
            if (validCrlsFound > 0) {
                result.Add(new VerificationOK(signCert, this, "Valid CRLs found: " + validCrlsFound + (online ? " (online)" : "")));
            }
            if (verifier != null)
                result.AddRange(verifier.Verify(signCert, issuerCert, signDate));
            // verify using the previous verifier in the chain (if any)
            return result;
        }

 public static int CheckRevocation(PdfPKCS7 pkcs7, X509Certificate signCert, X509Certificate issuerCert, DateTime date)
 {
     List<BasicOcspResp> ocsps = new List<BasicOcspResp>();
     if (pkcs7.Ocsp != null)
         ocsps.Add(pkcs7.Ocsp);
     OcspVerifier ocspVerifier = new OcspVerifier(null, ocsps);
     List<VerificationOK> verification =
         ocspVerifier.Verify(signCert, issuerCert, date);
     if (verification.Count == 0)
     {
         List<X509Crl> crls = new List<X509Crl>();
         if (pkcs7.CRLs != null)
             foreach (X509Crl crl in pkcs7.CRLs)
                 crls.Add(crl);
         CrlVerifier crlVerifier = new CrlVerifier(null, crls);
         verification.AddRange(crlVerifier.Verify(signCert, issuerCert, date));
     }
     if (verification.Count == 0)
     {
         Console.WriteLine("No se pudo verificar estado de revocación del certificado por CRL ni OCSP");
         return CER_STATUS_NOT_VERIFIED;
     }
     else
     {
         foreach (VerificationOK v in verification)
             Console.WriteLine(v);
         return 0;
     }
 }