private void TestSign() { RLWEParameters mpar = (RLWEParameters)RLWEParamSets.RLWEN512Q12289.DeepCopy(); RLWEKeyGenerator mkgen = new RLWEKeyGenerator(mpar); IAsymmetricKeyPair akp = mkgen.GenerateKeyPair(); using (RLWESign sgn = new RLWESign(mpar)) { sgn.Initialize(akp.PublicKey); int sz = sgn.MaxPlainText; byte[] data = new byte[200]; new VTDev.Libraries.CEXEngine.Crypto.Prng.CSPRng().GetBytes(data); byte[] code = sgn.Sign(data, 0, data.Length); sgn.Initialize(akp.PrivateKey); if (!sgn.Verify(data, 0, data.Length, code)) throw new Exception("EncryptionKey: private key comparison test failed!"); OnProgress(new TestEventArgs("Passed byte sign and verify")); sgn.Initialize(akp.PublicKey); code = sgn.Sign(new MemoryStream(data)); sgn.Initialize(akp.PrivateKey); if (!sgn.Verify(new MemoryStream(data), code)) throw new Exception("EncryptionKey: private key comparison test failed!"); OnProgress(new TestEventArgs("Passed stream sign and verify")); } }
private void TestEncrypt(RLWEParameters Param) { RLWEKeyGenerator mkgen = new RLWEKeyGenerator(Param); IAsymmetricKeyPair akp = mkgen.GenerateKeyPair(); byte[] enc; using (RLWEEncrypt mpe = new RLWEEncrypt(Param)) { mpe.Initialize(akp.PublicKey); int sz = mpe.MaxPlainText; byte[] data = new byte[sz]; new CSPRng().GetBytes(data); enc = mpe.Encrypt(data); mpe.Initialize(akp.PrivateKey); byte[] dec = mpe.Decrypt(enc); if (!Compare.AreEqual(dec, data)) throw new Exception("Encryption test: decryption failure!"); OnProgress(new TestEventArgs(string.Format("Passed N:{0} Q:{1} encryption test", Param.N, Param.Q))); } }
private void TestKey() { RLWEParameters encParams = (RLWEParameters)RLWEParamSets.RLWEN256Q7681.DeepCopy(); RLWEKeyGenerator keyGen = new RLWEKeyGenerator(encParams); IAsymmetricKeyPair keyPair = keyGen.GenerateKeyPair(); byte[] enc, dec, data; // encrypt an array using (RLWEEncrypt cipher = new RLWEEncrypt(encParams)) { cipher.Initialize(keyPair.PublicKey); data = new byte[cipher.MaxPlainText]; new CSPRng().GetBytes(data); enc = cipher.Encrypt(data); } // decrypt the cipher text using (RLWEEncrypt cipher = new RLWEEncrypt(encParams)) { cipher.Initialize(keyPair.PrivateKey); dec = cipher.Decrypt(enc); } if (!Compare.AreEqual(dec, data)) throw new Exception("TestKey test: decryption failure!"); OnProgress(new TestEventArgs("Passed sub-key test")); }
private void TestEncode() { RLWEParameters mpar = (RLWEParameters)RLWEParamSets.RLWEN256Q7681.DeepCopy(); RLWEKeyGenerator mkgen = new RLWEKeyGenerator(mpar); IAsymmetricKeyPair akp = mkgen.GenerateKeyPair(); RLWEPublicKey pub = (RLWEPublicKey)akp.PublicKey; byte[] enc = pub.ToBytes(); using (RLWEPublicKey pub2 = RLWEPublicKey.From(enc)) { if (!pub.Equals(pub2)) throw new Exception("EncryptionKey: public key comparison test failed!"); } OnProgress(new TestEventArgs("Passed public key serialization")); MemoryStream pubstr = pub.ToStream(); using (RLWEPublicKey pub2 = RLWEPublicKey.From(pubstr)) { if (!pub.Equals(pub2)) throw new Exception("EncryptionKey: public key comparison test failed!"); } pubstr.Dispose(); OnProgress(new TestEventArgs("Passed public key stream test")); RLWEPrivateKey pri = (RLWEPrivateKey)akp.PrivateKey; enc = pri.ToBytes(); using (RLWEPrivateKey pri2 = RLWEPrivateKey.From(enc)) { if (!pri.Equals(pri2)) throw new Exception("EncryptionKey: private key comparison test failed!"); } OnProgress(new TestEventArgs("Passed private key serialization")); MemoryStream pristr = pri.ToStream(); using (RLWEPrivateKey pri2 = RLWEPrivateKey.From(pristr)) { if (!pri.Equals(pri2)) throw new Exception("EncryptionKey: private key comparison test failed!"); } pristr.Dispose(); OnProgress(new TestEventArgs("Passed private key stream test")); using (RLWEEncrypt mpe = new RLWEEncrypt(mpar)) { mpe.Initialize(akp.PublicKey); int sz = mpe.MaxPlainText; byte[] data = new byte[sz]; new VTDev.Libraries.CEXEngine.Crypto.Prng.CSPRng().GetBytes(data); enc = mpe.Encrypt(data); mpe.Initialize(akp.PrivateKey); byte[] dec = mpe.Decrypt(enc); if (!Compare.AreEqual(dec, data)) throw new Exception("EncryptionKey: decryption failure!"); OnProgress(new TestEventArgs("Passed encryption test")); } pri.Dispose(); pub.Dispose(); }