Verify() public method

Verify Pkcs10 Cert Request is valid.
public Verify ( ) : bool
return bool
        private void createPssTest(
			string algorithm)
        {
            //			RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(
            RsaKeyParameters pubKey = new RsaKeyParameters(false,
                new BigInteger("a56e4a0e701017589a5187dc7ea841d156f2ec0e36ad52a44dfeb1e61f7ad991d8c51056ffedb162b4c0f283a12a88a394dff526ab7291cbb307ceabfce0b1dfd5cd9508096d5b2b8b6df5d671ef6377c0921cb23c270a70e2598e6ff89d19f105acc2d3f0cb35f29280e1386b6f64c4ef22e1e1f20d0ce8cffb2249bd9a2137",16),
                new BigInteger("010001",16));

            //			RSAPrivateCrtKeySpec privKeySpec = new RSAPrivateCrtKeySpec(
            RsaPrivateCrtKeyParameters privKey = new RsaPrivateCrtKeyParameters(
                new BigInteger("a56e4a0e701017589a5187dc7ea841d156f2ec0e36ad52a44dfeb1e61f7ad991d8c51056ffedb162b4c0f283a12a88a394dff526ab7291cbb307ceabfce0b1dfd5cd9508096d5b2b8b6df5d671ef6377c0921cb23c270a70e2598e6ff89d19f105acc2d3f0cb35f29280e1386b6f64c4ef22e1e1f20d0ce8cffb2249bd9a2137",16),
                new BigInteger("010001",16),
                new BigInteger("33a5042a90b27d4f5451ca9bbbd0b44771a101af884340aef9885f2a4bbe92e894a724ac3c568c8f97853ad07c0266c8c6a3ca0929f1e8f11231884429fc4d9ae55fee896a10ce707c3ed7e734e44727a39574501a532683109c2abacaba283c31b4bd2f53c3ee37e352cee34f9e503bd80c0622ad79c6dcee883547c6a3b325",16),
                new BigInteger("e7e8942720a877517273a356053ea2a1bc0c94aa72d55c6e86296b2dfc967948c0a72cbccca7eacb35706e09a1df55a1535bd9b3cc34160b3b6dcd3eda8e6443",16),
                new BigInteger("b69dca1cf7d4d7ec81e75b90fcca874abcde123fd2700180aa90479b6e48de8d67ed24f9f19d85ba275874f542cd20dc723e6963364a1f9425452b269a6799fd",16),
                new BigInteger("28fa13938655be1f8a159cbaca5a72ea190c30089e19cd274a556f36c4f6e19f554b34c077790427bbdd8dd3ede2448328f385d81b30e8e43b2fffa027861979",16),
                new BigInteger("1a8b38f398fa712049898d7fb79ee0a77668791299cdfa09efc0e507acb21ed74301ef5bfd48be455eaeb6e1678255827580a8e4e8e14151d1510a82a3f2e729",16),
                new BigInteger("27156aba4126d24a81f3a528cbfb27f56886f840a9f6e86e17a44b94fe9319584b8e22fdde1e5a2e3bd8aa5ba8d8584194eb2190acf832b847f13a3d24a79f4d",16));

            //			KeyFactory  fact = KeyFactory.getInstance("RSA", "BC");
            //
            //			PrivateKey privKey = fact.generatePrivate(privKeySpec);
            //			PublicKey pubKey = fact.generatePublic(pubKeySpec);

            Pkcs10CertificationRequest req = new Pkcs10CertificationRequest(
                algorithm, new X509Name("CN=XXX"), pubKey, null, privKey);

            if (!req.Verify())
            {
                Fail("Failed verify check PSS.");
            }

            req = new Pkcs10CertificationRequest(req.GetEncoded());
            if (!req.Verify())
            {
                Fail("Failed verify check PSS encoded.");
            }

            if (!req.SignatureAlgorithm.ObjectID.Equals(PkcsObjectIdentifiers.IdRsassaPss))
            {
                Fail("PSS oid incorrect.");
            }

            if (req.SignatureAlgorithm.Parameters == null)
            {
                Fail("PSS parameters incorrect.");
            }

            ISigner sig = SignerUtilities.GetSigner(algorithm);

            sig.Init(false, pubKey);

            byte[] encoded = req.GetCertificationRequestInfo().GetEncoded();
            sig.BlockUpdate(encoded, 0, encoded.Length);

            if (!sig.VerifySignature(req.Signature.GetBytes()))
            {
                Fail("signature not mapped correctly.");
            }
        }
        public override void PerformTest()
        {
            generationTest(512, "RSA", "SHA1withRSA");
            generationTest(512, "GOST3410", "GOST3411withGOST3410");

            //		if (Security.getProvider("SunRsaSign") != null)
            //        {
            //            generationTest(512, "RSA", "SHA1withRSA", "SunRsaSign");
            //        }

            // elliptic curve GOST A parameter set
            Pkcs10CertificationRequest req = new Pkcs10CertificationRequest(gost3410EC_A);
            if (!req.Verify())
            {
                Fail("Failed Verify check gost3410EC_A.");
            }

            // elliptic curve GOST B parameter set
            req = new Pkcs10CertificationRequest(gost3410EC_B);
            if (!req.Verify())
            {
                Fail("Failed Verify check gost3410EC_B.");
            }

            // elliptic curve GOST C parameter set
            req = new Pkcs10CertificationRequest(gost3410EC_C);
            if (!req.Verify())
            {
                Fail("Failed Verify check gost3410EC_C.");
            }

            // elliptic curve GOST ExA parameter set
            req = new Pkcs10CertificationRequest(gost3410EC_ExA);
            if (!req.Verify())
            {
                Fail("Failed Verify check gost3410EC_ExA.");
            }

            // elliptic curve GOST ExB parameter set
            req = new Pkcs10CertificationRequest(gost3410EC_ExB);
            if (!req.Verify())
            {
                Fail("Failed Verify check gost3410EC_ExA.");
            }

            // elliptic curve openSSL
            IAsymmetricCipherKeyPairGenerator g = GeneratorUtilities.GetKeyPairGenerator("ECDSA");

            ECCurve curve = new FPCurve(
                new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
                new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
                new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b

            ECDomainParameters ecSpec = new ECDomainParameters(
                curve,
                curve.DecodePoint(Hex.Decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
                new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307")); // n

            //			g.initialize(ecSpec, new SecureRandom());
            g.Init(new ECKeyGenerationParameters(ecSpec, new SecureRandom()));

            IAsymmetricCipherKeyPair kp = g.GenerateKeyPair();

            req = new Pkcs10CertificationRequest(
                "ECDSAWITHSHA1", new X509Name("CN=XXX"), kp.Public, null, kp.Private);

            if (!req.Verify())
            {
                Fail("Failed Verify check EC.");
            }

            createECRequest("SHA1withECDSA", X9ObjectIdentifiers.ECDsaWithSha1);
            createECRequest("SHA224withECDSA", X9ObjectIdentifiers.ECDsaWithSha224);
            createECRequest("SHA256withECDSA", X9ObjectIdentifiers.ECDsaWithSha256);
            createECRequest("SHA384withECDSA", X9ObjectIdentifiers.ECDsaWithSha384);
            createECRequest("SHA512withECDSA", X9ObjectIdentifiers.ECDsaWithSha512);

            createECGostRequest();

            // TODO The setting of parameters for MGF algorithms is not implemented
            //			createPssTest("SHA1withRSAandMGF1");
            //			createPssTest("SHA224withRSAandMGF1");
            //			createPssTest("SHA256withRSAandMGF1");
            //			createPssTest("SHA384withRSAandMGF1");

            nullPointerTest();
        }
        private void generationTest(
			int		keySize,
			string	keyName,
			string	sigName)
        {
            IAsymmetricCipherKeyPairGenerator kpg = GeneratorUtilities.GetKeyPairGenerator(keyName);

            //			kpg.initialize(keySize);
            kpg.Init(new KeyGenerationParameters(new SecureRandom(), keySize));

            IAsymmetricCipherKeyPair kp = kpg.GenerateKeyPair();

            IDictionary attrs = new Hashtable();
            attrs.Add(X509Name.C, "AU");
            attrs.Add(X509Name.O, "The Legion of the Bouncy Castle");
            attrs.Add(X509Name.L, "Melbourne");
            attrs.Add(X509Name.ST, "Victoria");
            attrs.Add(X509Name.EmailAddress, "*****@*****.**");

            IList order = new ArrayList();
            order.Add(X509Name.C);
            order.Add(X509Name.O);
            order.Add(X509Name.L);
            order.Add(X509Name.ST);
            order.Add(X509Name.EmailAddress);

            X509Name subject = new X509Name(order, attrs);

            Pkcs10CertificationRequest req1 = new Pkcs10CertificationRequest(
                sigName,
                subject,
                kp.Public,
                null,
                kp.Private);

            byte[] bytes = req1.GetEncoded();

            Pkcs10CertificationRequest req2 = new Pkcs10CertificationRequest(bytes);

            if (!req2.Verify())
            {
                Fail(sigName + ": Failed Verify check.");
            }

            if (!req2.GetPublicKey().Equals(req1.GetPublicKey()))
            {
                Fail(keyName + ": Failed public key check.");
            }
        }
        /*
         * we generate a self signed certificate for the sake of testing - SHA224withECDSA
         */
        private void createECRequest(
			string				algorithm,
			DerObjectIdentifier	algOid)
        {
            FPCurve curve = new FPCurve(
                new BigInteger("6864797660130609714981900799081393217269435300143305409394463459185543183397656052122559640661454554977296311391480858037121987999716643812574028291115057151"), // q (or p)
                new BigInteger("01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC", 16),   // a
                new BigInteger("0051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573DF883D2C34F1EF451FD46B503F00", 16));  // b

            ECDomainParameters spec = new ECDomainParameters(
                curve,
            //				curve.DecodePoint(Hex.Decode("02C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66")), // G
                curve.DecodePoint(Hex.Decode("0200C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66")), // G
                new BigInteger("01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409", 16)); // n

            ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(
                new BigInteger("5769183828869504557786041598510887460263120754767955773309066354712783118202294874205844512909370791582896372147797293913785865682804434049019366394746072023"), // d
                spec);

            ECPublicKeyParameters pubKey = new ECPublicKeyParameters(
            //				curve.DecodePoint(Hex.Decode("026BFDD2C9278B63C92D6624F151C9D7A822CC75BD983B17D25D74C26740380022D3D8FAF304781E416175EADF4ED6E2B47142D2454A7AC7801DD803CF44A4D1F0AC")), // Q
                curve.DecodePoint(Hex.Decode("02006BFDD2C9278B63C92D6624F151C9D7A822CC75BD983B17D25D74C26740380022D3D8FAF304781E416175EADF4ED6E2B47142D2454A7AC7801DD803CF44A4D1F0AC")), // Q
                spec);

            //			//
            //			// set up the keys
            //			//
            //			IAsymmetricKeyParameter privKey;
            //			IAsymmetricKeyParameter pubKey;
            //
            //			KeyFactory fact = KeyFactory.getInstance("ECDSA");
            //
            //			privKey = fact.generatePrivate(privKeySpec);
            //			pubKey = fact.generatePublic(pubKeySpec);

            Pkcs10CertificationRequest req = new Pkcs10CertificationRequest(
                algorithm, new X509Name("CN=XXX"), pubKey, null, privKey);
            if (!req.Verify())
            {
                Fail("Failed Verify check EC.");
            }

            req = new Pkcs10CertificationRequest(req.GetEncoded());
            if (!req.Verify())
            {
                Fail("Failed Verify check EC encoded.");
            }

            //
            // try with point compression turned off
            //
            //			((ECPointEncoder)pubKey).setPointFormat("UNCOMPRESSED");
            FPPoint q = (FPPoint) pubKey.Q;
            pubKey = new ECPublicKeyParameters(
                pubKey.AlgorithmName,
                new FPPoint(q.Curve, q.X, q.Y, false),
                pubKey.Parameters);

            req = new Pkcs10CertificationRequest(
                algorithm, new X509Name("CN=XXX"), pubKey, null, privKey);
            if (!req.Verify())
            {
                Fail("Failed Verify check EC uncompressed.");
            }

            req = new Pkcs10CertificationRequest(req.GetEncoded());
            if (!req.Verify())
            {
                Fail("Failed Verify check EC uncompressed encoded.");
            }

            if (!req.SignatureAlgorithm.ObjectID.Equals(algOid))
            {
                Fail("ECDSA oid incorrect.");
            }

            if (req.SignatureAlgorithm.Parameters != null)
            {
                Fail("ECDSA parameters incorrect.");
            }

            ISigner sig = SignerUtilities.GetSigner(algorithm);

            sig.Init(false, pubKey);

            byte[] b = req.GetCertificationRequestInfo().GetEncoded();
            sig.BlockUpdate(b, 0, b.Length);

            if (!sig.VerifySignature(req.Signature.GetBytes()))
            {
                Fail("signature not mapped correctly.");
            }
        }
        private void createECGostRequest()
        {
            string algorithm = "GOST3411withECGOST3410";
            IAsymmetricCipherKeyPairGenerator ecGostKpg = GeneratorUtilities.GetKeyPairGenerator("ECGOST3410");

            ecGostKpg.Init(
                new ECKeyGenerationParameters(
                    CryptoProObjectIdentifiers.GostR3410x2001CryptoProA,
                    new SecureRandom()));

            //
            // set up the keys
            //
            IAsymmetricCipherKeyPair pair = ecGostKpg.GenerateKeyPair();
            IAsymmetricKeyParameter privKey = pair.Private;
            IAsymmetricKeyParameter pubKey = pair.Public;

            Pkcs10CertificationRequest req = new Pkcs10CertificationRequest(
                algorithm, new X509Name("CN=XXX"), pubKey, null, privKey);

            if (!req.Verify())
            {
                Fail("Failed Verify check EC.");
            }

            req = new Pkcs10CertificationRequest(req.GetEncoded());
            if (!req.Verify())
            {
                Fail("Failed Verify check EC encoded.");
            }

            if (!req.SignatureAlgorithm.ObjectID.Equals(CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001))
            {
                Fail("ECGOST oid incorrect.");
            }

            if (req.SignatureAlgorithm.Parameters != null)
            {
                Fail("ECGOST parameters incorrect.");
            }

            ISigner sig = SignerUtilities.GetSigner(algorithm);

            sig.Init(false, pubKey);

            byte[] b = req.GetCertificationRequestInfo().GetEncoded();
            sig.BlockUpdate(b, 0, b.Length);

            if (!sig.VerifySignature(req.Signature.GetBytes()))
            {
                Fail("signature not mapped correctly.");
            }
        }