public void KeyIsNotNull()
{
// Arrange
var rc2 = new RC2();
// Act
var wrong = rc2.Encrypt(_valueDecrypt, "");
// Assert - Expects exception
}
public void ExpectedCrypto()
{
// Arrange
var rc2 = new RC2();
// Act
var right = rc2.Encrypt(_valueDecrypt, _key);
// Assert
Assert.AreEqual(_valueEncrypt, right);
}
public static void RC2RoundTrip(CipherMode cipherMode, PaddingMode paddingMode, string key, string iv, string textHex, string expectedDecrypted, string expectedEncrypted)
{
byte[] expectedDecryptedBytes = expectedDecrypted == null?textHex.HexToByteArray() : expectedDecrypted.HexToByteArray();
byte[] expectedEncryptedBytes = expectedEncrypted.HexToByteArray();
byte[] keyBytes = key.HexToByteArray();
using (RC2 alg = RC2Factory.Create())
{
alg.Key = keyBytes;
alg.Padding = paddingMode;
alg.Mode = cipherMode;
if (iv != null)
{
alg.IV = iv.HexToByteArray();
}
byte[] cipher = alg.Encrypt(textHex.HexToByteArray());
Assert.Equal <byte>(expectedEncryptedBytes, cipher);
byte[] decrypted = alg.Decrypt(cipher);
Assert.Equal <byte>(expectedDecryptedBytes, decrypted);
if (RC2Factory.OneShotSupported)
{
byte[] oneShotEncrypt = cipherMode switch
{
CipherMode.ECB => alg.EncryptEcb(textHex.HexToByteArray(), paddingMode),
CipherMode.CBC => alg.EncryptCbc(textHex.HexToByteArray(), iv.HexToByteArray(), paddingMode),
_ => throw new NotImplementedException(),
};
Assert.Equal(expectedEncryptedBytes, oneShotEncrypt);
byte[] oneShotDecrypt = cipherMode switch
{
CipherMode.ECB => alg.DecryptEcb(cipher, paddingMode),
CipherMode.CBC => alg.DecryptCbc(cipher, iv.HexToByteArray(), paddingMode),
_ => throw new NotImplementedException(),
};
Assert.Equal(expectedDecryptedBytes, oneShotDecrypt);
}
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
try
{
var iv = this.EncryptIv.Text;
var key = this.EncryptCryptoKey.Text;
var message = this.EncryptNomalMessage.Text;
var crp = new RC2(key, message);
crp.IV = iv;
crp.Encrypt();
this.EncryptResult.Text = crp.EncryptMessage;
}catch (Exception ex)
{
this.EncryptResult.Text = ex.Message;
}
}
public static void RC2RoundTrip(CipherMode cipherMode, PaddingMode paddingMode, string key, string iv, string textHex, string expectedDecrypted, string expectedEncrypted)
{
byte[] expectedDecryptedBytes = expectedDecrypted == null?textHex.HexToByteArray() : expectedDecrypted.HexToByteArray();
byte[] expectedEncryptedBytes = expectedEncrypted.HexToByteArray();
byte[] keyBytes = key.HexToByteArray();
using (RC2 alg = RC2Factory.Create())
{
alg.Key = keyBytes;
alg.Padding = paddingMode;
alg.Mode = cipherMode;
if (iv != null)
{
alg.IV = iv.HexToByteArray();
}
byte[] cipher = alg.Encrypt(textHex.HexToByteArray());
Assert.Equal <byte>(expectedEncryptedBytes, cipher);
byte[] decrypted = alg.Decrypt(cipher);
Assert.Equal <byte>(expectedDecryptedBytes, decrypted);
}
}