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我正在尝试使用 RSA 公钥加密消息并使用我的私钥对其进行解密。它加密了消息，但我无法解密它。在最后的过程之后，消息仍然被加密。当我导出私钥时，它还包括公钥。我试图删除离开的公钥，但它不起作用。这是私钥和公钥

//This is the public key
private const string public_key =  "<RSAKeyValue><Modulus>uznzVPilsR1rWPkpq6m6IALaafDnVZTDDcnEyBD3A/PBx2JZTKM0DTgiTDDwCEmQBNBpPILcIBdtg3aSUgicair+2ksYrVFT+uiy0Zy1nU6qoJ+SsapLKrpCa1zHpV4LMO/pFo4Foqzw0C1FNe56FXo1xj77GPgeYl0MHUVtAUc=</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>";

//This is the private and public key.
private const String private_key = "<RSAKeyValue><Modulus>uznzVPilsR1rWPkpq6m6IALaafDnVZTDDcnEyBD3A/PBx2JZTKM0DTgiTDDwCEmQBNBpPILcIBdtg3aSUgicair+2ksYrVFT+uiy0Zy1nU6qoJ+SsapLKrpCa1zHpV4LMO/pFo4Foqzw0C1FNe56FXo1xj77GPgeYl0MHUVtAUc=</Modulus><Exponent>AQAB</Exponent><P>+jPKs9JxpCSzNY+YNanz49Eo/A6RaU1DZWoFm/bawffZOompeL1jzpUlJUIrKVZJkNFvlxE90uXVwjxWBLv9BD==</P><Q>v5CVWKZ5Wo7W0QyoEOQS/OD8tkKS9DjzZnbnuo6lhcMaxsBrCWLstac1Xm2oFNtZgLtrPGbPfCNC5Su4Rz/P5w==</Q><DP>ZnyikmgobqEt20m3gnvcUDxT+nOJMsYYTklQhONoFj4M+EJ9bdy+Lle/gHSLM4KJ3c08VXgVh/bnSYnnfkb20Q==</DP><DQ>sSYGRfWk0W64Dpfyr7QKLxnr+Kv186zawU2CG44gWWNEVrnIAeUeWxnmi41CWw9BZH9sum2kv/pnuT/F6PWEzw==</DQ><InverseQ>XpWZQKXa1IXhF4FX3XRXVZGnIQP8YJFJlSiYx6YcdZF24Hg3+Et6CZ2/rowMFYVy+o999Y5HDC+4Qa1yWvW1vA==</InverseQ><D>Kkfb+8RrJqROKbma/3lE3xXNNQ7CL0F5CxQVrGcN8DxL9orvVdyjlJiopiwnCLgUHgIywceLjnO854Q/Zucq6ysm2ZRq36dpGLOao9eg+Qe8pYYO70oOkEe1HJCtP1Laq+f3YK7vCq7GkgvKAI9uzOd1vjQv7tIwTIADK19ObgE=</D></RSAKeyValue>";

//Encrypting the text using the public key
private RSACryptoServiceProvider cipher = null;
cipher = new RSACryptoServiceProvider();
            cipher.FromXmlString(public_key);
            byte[] data = Encoding.UTF8.GetBytes(txtUnencrypt.Text);
            byte[] cipherText = cipher.Encrypt(data, false);
            lblUnencryptMessage.Text = Convert.ToBase64String(cipherText);

        //    decryptText();

//Trying to decrypt the text using the private key

cipher = new RSACryptoServiceProvider();
            cipher.FromXmlString(private_key);

            byte[] ciphterText = Convert.FromBase64String(lblUnencryptMessage.Text);
            byte[] plainText = cipher.Decrypt(ciphterText, false);
            lblDecript.Text = Convert.ToBase64String(plainText);

我在这里想念什么？

上午 11:37 更新

For example, I encrypted the word "Testing", the encrypted text was kkqs+UGHNI7/3cKhQvSnJrKzNeCBQX9xHX2VrlyMvnwtszJAoFuViBZlfwmpVhqddnVUrlaqqkD7971E8L3wWltfGetK9nIljeo0GeietLYljoY0Gy3gatU++JPrqajAKxpIB75tvVlKXuYIs0qE3XWZu9bj0zAa4BVT2MhVNQM="

解密后的文本是 dGVzdGluZw==

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1 回答 1

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加密/解密代码似乎没有任何问题，只是您处理解密数据的方式。特别是这一行：

lblDecript.Text = Convert.ToBase64String(plainText);

您正在获取解密的数据并对其进行 Base64 编码，这就是为什么您得到：dGVzdGluZw==（因为这是字符串“testing”的 Base64 编码版本）。

您需要改用以下内容：

lblDecript.Text = Encoding.UTF8.GetString(plainText);

这应该正确地将解密的字节数组转换为原始字符串。

于 2013-10-08T20:32:12.173 回答