Exemple #1
0
        private void btnAsymmEncrypt_Click(object sender, EventArgs e)
        {
            AsymmetricCrypto crypto = new AsymmetricCrypto();

            // 產生公鑰與私鑰
            AsymmetricCrypto.PublicKey  pubKey = new AsymmetricCrypto.PublicKey();
            AsymmetricCrypto.PrivateKey priKey = new AsymmetricCrypto.PrivateKey();
            crypto.GenerateNewKeyset(ref pubKey, ref priKey);

            // 用公鑰加密
            ByteArray inputData = new ByteArray(txtRawData.Text);
            ByteArray encrypted = crypto.Encrypt(inputData, pubKey);

            txtAsymmEncrypted.Text = encrypted.Base64String;

            // 用私鑰解密
            ByteArray decrypted = crypto.Decrypt(encrypted, priKey);

            txtAsymmDecrypted.Text = decrypted.Text;
        }
Exemple #2
0
        public void AsymmetricCrypto_RsaEncryption()
        {
            string privateKey;
            string publicKey;

            byte[] plainText = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 };
            byte[] encrypted;
            byte[] decrypted;

            try
            {
                privateKey = AsymmetricCrypto.CreatePrivateKey(CryptoAlgorithm.RSA, 1024);
                publicKey  = AsymmetricCrypto.GetPublicKey(CryptoAlgorithm.RSA, privateKey);

                encrypted = AsymmetricCrypto.Encrypt(CryptoAlgorithm.RSA, publicKey, plainText);
                CollectionAssert.AreNotEqual(encrypted, plainText);
                decrypted = AsymmetricCrypto.Decrypt(CryptoAlgorithm.RSA, privateKey, encrypted);
                CollectionAssert.AreEqual(plainText, decrypted);

                encrypted = AsymmetricCrypto.Encrypt(CryptoAlgorithm.RSA, privateKey, plainText);
                Assert.AreNotEqual(encrypted, plainText);
                decrypted = AsymmetricCrypto.Decrypt(CryptoAlgorithm.RSA, privateKey, encrypted);
                CollectionAssert.AreEqual(plainText, decrypted);

                AsymmetricCrypto.SaveKey(CryptoAlgorithm.RSA, KeyContainer, null, privateKey);

                encrypted = AsymmetricCrypto.Encrypt(CryptoAlgorithm.RSA, KeyContainer, plainText);
                CollectionAssert.AreNotEqual(encrypted, plainText);
                decrypted = AsymmetricCrypto.Decrypt(CryptoAlgorithm.RSA, KeyContainer, encrypted);
                CollectionAssert.AreEqual(plainText, decrypted);

                encrypted = AsymmetricCrypto.Encrypt(CryptoAlgorithm.RSA, KeyContainer, plainText);
                CollectionAssert.AreNotEqual(encrypted, plainText);
                decrypted = AsymmetricCrypto.Decrypt(CryptoAlgorithm.RSA, KeyContainer, encrypted);
                CollectionAssert.AreEqual(plainText, decrypted);
            }
            finally
            {
                AsymmetricCrypto.DeleteKey(CryptoAlgorithm.RSA, KeyContainer, null);
            }
        }