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

        public static Object[] VerifyCertificates(X509Certificate[] certs, ArrayList keystore, object[] crls, DateTime calendar) {
            for (int k = 0; k < certs.Length; ++k) {
                X509Certificate cert = certs[k];
                String err = VerifyCertificate(cert, crls, calendar);
                if (err != null)
                    return new Object[]{cert, err};
                foreach (X509Certificate certStoreX509 in keystore) {
                    try {
                        if (VerifyCertificate(certStoreX509, crls, calendar) != null)
                            continue;
                        try {
                            cert.Verify(certStoreX509.GetPublicKey());
                            return null;
                        }
                        catch {
                            continue;
                        }
                    }
                    catch {
                    }
                }
                int j;
                for (j = 0; j < certs.Length; ++j) {
                    if (j == k)
                        continue;
                    X509Certificate certNext = certs[j];
                    try {
                        cert.Verify(certNext.GetPublicKey());
                        break;
                    }
                    catch {
                    }
                }
                if (j == certs.Length)
                    return new Object[]{cert, "Cannot be verified against the KeyStore or the certificate chain"};
            }
            return new Object[]{null, "Invalid state. Possible circular certificate chain"};
        }