public byte[] Decrypt(byte[] data, KeyParameters parameters)
{
Ensure.ArgumentNotNull(parameters, "parameters");
var key = _keyGenerator.Generate(parameters.Password, parameters.Salt, parameters.KeySize);
var iv = _keyGenerator.Generate(parameters.Password, parameters.Salt, parameters.IVSize);
return(Decrypt(data, key, iv));
}
public byte[] Encrypt(byte[] data, KeyParameters parameters)
{
Ensure.ArgumentNotNull(parameters, "parameters");
var key = _keyGenerator.Generate(parameters.Password, parameters.Salt, parameters.KeySize);
var iv = _keyGenerator.Generate(parameters.Password, parameters.Salt, parameters.IVSize);
return Encrypt(data, key, iv);
}
protected override void ExecuteExample()
{
const string dataToEncrypt = "This is sample data to encrypt and decrypt.";
Console.WriteLine("\nData to encrypt/decrypt: \"{0}\"\n", dataToEncrypt);
var parameters = new List <CryptoParameters>
{
new CryptoParameters(new AesCryptoServiceProvider()),
new CryptoParameters(new DESCryptoServiceProvider())
{
KeySize = 8
},
new CryptoParameters(new TripleDESCryptoServiceProvider()),
new CryptoParameters(new RC2CryptoServiceProvider())
};
var rng = RandomNumberGenerator.Create();
ISaltGenerator saltGenerator = new RNGSaltGenerator(rng);
var password = "******";
try
{
parameters.ForEach(p =>
{
var typeName = p.Algorithm.GetType().Name;
ICryptoUtility cryptoUtility = new CryptoUtility(p.Algorithm, new KeyGenerator());
var salt = saltGenerator.Generate(8);
using (var pdb = new Rfc2898DeriveBytes(password, salt))
{
var key = pdb.GetBytes(p.KeySize);
var iv = pdb.GetBytes(p.IVSize);
var encryptedData = cryptoUtility.Encrypt(Encoding.UTF8.GetBytes(dataToEncrypt), key, iv);
Console.WriteLine("\n{0} | Encrypted data: {1}", typeName, BitConverter.ToString(encryptedData).Replace("-", ""));
var decryptedData = cryptoUtility.Decrypt(encryptedData, key, iv);
var decryptedString = Encoding.UTF8.GetString(decryptedData);
Console.WriteLine("{0} | Decrypted data: {1}", typeName, decryptedString);
Debug.Assert(decryptedString == dataToEncrypt);
}
});
parameters.ForEach(p =>
{
var typeName = p.Algorithm.GetType().Name;
ICryptoUtility cryptoUtility = new CryptoUtility(p.Algorithm, new KeyGenerator());
var salt = saltGenerator.Generate(8);
var keyParams = new KeyParameters {
KeySize = p.KeySize, IVSize = p.IVSize, Password = password, Salt = salt
};
var encryptedData = cryptoUtility.Encrypt(Encoding.UTF8.GetBytes(dataToEncrypt), keyParams);
Console.WriteLine("\n{0} | Encrypted data: {1}", typeName, BitConverter.ToString(encryptedData).Replace("-", ""));
var decryptedData = cryptoUtility.Decrypt(encryptedData, keyParams);
var decryptedString = Encoding.UTF8.GetString(decryptedData);
Console.WriteLine("{0} | Decrypted data: {1}", typeName, Encoding.UTF8.GetString(decryptedData));
Debug.Assert(decryptedString == dataToEncrypt);
});
}
finally
{
parameters.ForEach(p => p.Algorithm.Dispose());
rng.Dispose();
}
}
protected override void ExecuteExample()
{
const string dataToEncrypt = "This is sample data to encrypt and decrypt.";
Console.WriteLine("\nData to encrypt/decrypt: \"{0}\"\n", dataToEncrypt);
var parameters = new List<CryptoParameters>
{
new CryptoParameters(new AesCryptoServiceProvider()),
new CryptoParameters(new DESCryptoServiceProvider()) { KeySize = 8 },
new CryptoParameters(new TripleDESCryptoServiceProvider()),
new CryptoParameters(new RC2CryptoServiceProvider())
};
var rng = RandomNumberGenerator.Create();
ISaltGenerator saltGenerator = new RNGSaltGenerator(rng);
var password = "******";
try
{
parameters.ForEach(p =>
{
var typeName = p.Algorithm.GetType().Name;
ICryptoUtility cryptoUtility = new CryptoUtility(p.Algorithm, new KeyGenerator());
var salt = saltGenerator.Generate(8);
using (var pdb = new Rfc2898DeriveBytes(password, salt))
{
var key = pdb.GetBytes(p.KeySize);
var iv = pdb.GetBytes(p.IVSize);
var encryptedData = cryptoUtility.Encrypt(Encoding.UTF8.GetBytes(dataToEncrypt), key, iv);
Console.WriteLine("\n{0} | Encrypted data: {1}", typeName, BitConverter.ToString(encryptedData).Replace("-", ""));
var decryptedData = cryptoUtility.Decrypt(encryptedData, key, iv);
var decryptedString = Encoding.UTF8.GetString(decryptedData);
Console.WriteLine("{0} | Decrypted data: {1}", typeName, decryptedString);
Debug.Assert(decryptedString == dataToEncrypt);
}
});
parameters.ForEach(p =>
{
var typeName = p.Algorithm.GetType().Name;
ICryptoUtility cryptoUtility = new CryptoUtility(p.Algorithm, new KeyGenerator());
var salt = saltGenerator.Generate(8);
var keyParams = new KeyParameters { KeySize = p.KeySize, IVSize = p.IVSize, Password = password, Salt = salt };
var encryptedData = cryptoUtility.Encrypt(Encoding.UTF8.GetBytes(dataToEncrypt), keyParams);
Console.WriteLine("\n{0} | Encrypted data: {1}", typeName, BitConverter.ToString(encryptedData).Replace("-", ""));
var decryptedData = cryptoUtility.Decrypt(encryptedData, keyParams);
var decryptedString = Encoding.UTF8.GetString(decryptedData);
Console.WriteLine("{0} | Decrypted data: {1}", typeName, Encoding.UTF8.GetString(decryptedData));
Debug.Assert(decryptedString == dataToEncrypt);
});
}
finally
{
parameters.ForEach(p => p.Algorithm.Dispose());
rng.Dispose();
}
}