iTextSharp.text.pdf.PdfPKCS7.IsRevocationValid C# (CSharp) Метод

        public bool IsRevocationValid() {
            if (basicResp == null)
                return false;
            if (signCerts.Count < 2)
                return false;
            try {
                X509Certificate[] cs = SignCertificateChain;
                SingleResp sr = basicResp.Responses[0];
                CertificateID cid = sr.GetCertID();
                X509Certificate sigcer = SigningCertificate;
                X509Certificate isscer = cs[1];
                CertificateID tis = new CertificateID(CertificateID.HashSha1, isscer, sigcer.SerialNumber);
                return tis.Equals(cid);
            }
            catch {
            }
            return false;
        }