public JsonResult AsymmetricEncrypt(WebSecurity.Models.EncryptionModel encryption, string ButtonType)
{
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
string publicKey = string.Empty; // false to get the public key
string privateKey = string.Empty; // true to get the private key
if (!string.IsNullOrEmpty(encryption.PublicKey) && !string.IsNullOrEmpty(encryption.PrivateKey))
{
publicKey = HttpUtility.HtmlDecode(encryption.PublicKey);
privateKey = HttpUtility.HtmlDecode(encryption.PrivateKey);
}
else
{
publicKey = rsa.ToXmlString(false); // false to get the public key
privateKey = rsa.ToXmlString(true); // true to get the private key
}
var result = new EncryptionModel();
var asymEncryption = new AsymmetricEncryption();
if (ButtonType == "Encrypt")
{
var encryptedText = asymEncryption.EncryptText(publicKey, encryption.PlainText);
result = new EncryptionModel()
{
EncryptedText = encryptedText,
PlainText = encryption.PlainText,
PublicKey = HttpUtility.HtmlEncode(publicKey),
PrivateKey = HttpUtility.HtmlEncode(privateKey)
};
}
else if (ButtonType == "Decrypt")
{
var plainText = asymEncryption.DecryptData(HttpUtility.HtmlDecode(encryption.PrivateKey), encryption.EncryptedText);
result = new EncryptionModel()
{
EncryptedText = encryption.EncryptedText,
PlainText = plainText,
PublicKey = HttpUtility.HtmlEncode(publicKey),
PrivateKey = HttpUtility.HtmlEncode(privateKey)
};
}
return(Json(result));
}
public void AsymmetricEncryption_Test_Pass()
{
using (var encryption = new AsymmetricEncryption())
{
(RSAParameters, RSAParameters)keys = new Helpers().GenerateRSAKeys();
const string expected = "Text to encrypt";
var encrypted = encryption.EncryptData(Encoding.UTF8.GetBytes(expected), keys.Item1);
var decrypted = encryption.DecryptData(encrypted, keys.Item2);
string actual = Encoding.UTF8.GetString(decrypted);
string encryptedAsString = Encoding.UTF8.GetString(encrypted);
Assert.AreEqual(expected, actual);
Assert.AreNotEqual(expected, encryptedAsString);
}
}