예제 #1
0
        public bool ECDHTest_Signature(string svcProvider)
        {
            try
            {
                using (ECDsaCryptoServiceProvider csp = new ECDsaCryptoServiceProvider(svcProvider))
                {
                    byte[] dataToSign = System.Text.UTF8Encoding.UTF8.GetBytes("This is a string to sign");

                    byte[] sig = csp.SignData(dataToSign);

                    return csp.VerifyData(dataToSign, sig);
                }
            }
            catch
            {
                return false;
            }
        }
예제 #2
0
        private static bool TestSignDataStream(Session session)
        {
            bool passed = true;

            byte[] data = new byte[10000];
            for (int i = 0; i < data.Length; i++)
                data[i] = (byte)(i % 256);

            MechanismType[] hashAlgorithms = new MechanismType[]
            {
                //MechanismType.MD5,  currently not supported in OpenSSL for DSA
                MechanismType.SHA_1,
                MechanismType.SHA256,
                MechanismType.SHA384,
                MechanismType.SHA512
            };
            int[] keySizes = new int[] { 256, 384, 521 };

            foreach (int keySize in keySizes)
            {
                WriteLine("Using key size " + keySize);

                foreach (MechanismType hashAlgorithm in hashAlgorithms)
                {
                    WriteLine("Using hash algorithm " + hashAlgorithm.ToString());

                    using (ECDsaCryptoServiceProvider sign = new ECDsaCryptoServiceProvider(session))
                    {
                        sign.KeySize = keySize;

                        using (ECDsaCryptoServiceProvider verify1 = new ECDsaCryptoServiceProvider(sign.KeyPair))
                        using (ECDsaCryptoServiceProvider verify2 = new ECDsaCryptoServiceProvider(sign.KeyPair))
                        //using (MemoryStream ms = new MemoryStream(data))
                        {
                            sign.HashAlgorithm = hashAlgorithm;
                            verify1.HashAlgorithm = hashAlgorithm;
                            verify2.HashAlgorithm = hashAlgorithm;

                            byte[] signature = sign.SignData(data); //ms);

                            //ms.Position = 0;
                            bool verified = verify1.VerifyData(data, signature);
                            if (!verified)
                                WriteLine("Did not verify via stream");
                            passed &= verified;

                            verified = verify2.VerifyData(data, signature);
                            if (!verified)
                                WriteLine("Did not verify via array");
                            passed &= verified;
                        }
                    }
                }
            }

            return passed;
        }
예제 #3
0
        private static bool TestSignDataBuffer(Session session)
        {
            bool passed = true;

            byte[] data = new byte[10000];
            for (int i = 0; i < data.Length; i++)
                data[i] = (byte)(i % 256);

            MechanismType[] hashAlgorithms = new MechanismType[]
        {
            // MechanismType.MD5, - currently not supported in OpenSSL for ECDSA
            MechanismType.SHA_1,
            MechanismType.SHA256,
            MechanismType.SHA384,
            MechanismType.SHA512,
        };

            int[] keySizes = new int[] { 256, 384, 521 };

            foreach (int keySize in keySizes)
            {
                WriteLine("Using key size " + keySize);

                foreach (MechanismType hashAlgorithm in hashAlgorithms)
                {
                    WriteLine("Using hash algorithm " + hashAlgorithm.ToString());

                    using (ECDsaCryptoServiceProvider sign = new ECDsaCryptoServiceProvider(session, keySize))
                    using (ECDsaCryptoServiceProvider verify = new ECDsaCryptoServiceProvider(sign.KeyPair))
                    {
                        sign.HashAlgorithm = hashAlgorithm;
                        verify.HashAlgorithm = hashAlgorithm;

                        try
                        {
                            byte[] signature = sign.SignData(data);
                            bool verified = verify.VerifyData(data, signature);

                            if (!verified)
                                WriteLine("Did not verify");

                            passed &= verified;
                        }
                        catch
                        {
                            passed = false;
                        }
                    }
                }
            }

            return passed;
        }