/// <summary>
/// Decrypts a byte array
/// </summary>
/// <param name="Data">Data to be decrypted</param>
/// <param name="Key">Password to decrypt with</param>
/// <param name="Algorithm">Algorithm to use for decryption</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">
/// Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)
/// </param>
/// <returns>A decrypted byte array</returns>
public byte[] Decrypt(byte[] Data, DeriveBytes Key,
string Algorithm = "AES",
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
Contract.Requires <NullReferenceException>(SymmetricAlgorithms != null, "SymmetricAlgorithms");
ISymmetric Found = SymmetricAlgorithms.FirstOrDefault(x => x.CanHandle(Algorithm));
if (Found == null)
{
throw new ArgumentException(Algorithm + " not found");
}
return(Found.Decrypt(Data, Key, Algorithm, InitialVector, KeySize));
}
/// <summary>
/// Decrypts a byte array
/// </summary>
/// <param name="Data">Data to be decrypted</param>
/// <param name="Key">Password to decrypt with</param>
/// <param name="Algorithm">Algorithm to use for decryption</param>
/// <param name="Salt">Salt to decrypt with</param>
/// <param name="HashAlgorithm">Can be either SHA1 or MD5</param>
/// <param name="PasswordIterations">Number of iterations to do</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">
/// Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)
/// </param>
/// <returns>A decrypted byte array</returns>
public byte[] Decrypt(byte[] Data, string Key,
string Algorithm,
string Salt = "Kosher",
string HashAlgorithm = "SHA1",
int PasswordIterations = 2,
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
Contract.Requires <NullReferenceException>(SymmetricAlgorithms != null, "SymmetricAlgorithms");
ISymmetric Found = SymmetricAlgorithms.FirstOrDefault(x => x.CanHandle(Algorithm));
if (Found == null)
{
throw new ArgumentException(Algorithm + " not found");
}
return(Found.Decrypt(Data, Key, Algorithm, Salt, HashAlgorithm, PasswordIterations, InitialVector, KeySize));
}
public void Decrypt(ISymmetric testObject, int keySize)
{
var Key = testObject.CreateKey();
var IV = testObject.CreateInitialVector();
Assert.NotNull(testObject.Decrypt(
testObject.Encrypt(
new byte[] { 0, 1, 2, 3, 4, 5 },
(byte[])Key.Clone(),
"Salt".ToByteArray(),
HashingAlgorithms.SHA512,
2,
IV,
keySize),
(byte[])Key.Clone(),
"Salt".ToByteArray(),
HashingAlgorithms.SHA512,
2,
IV,
keySize));
}
public ResultCrypto Decrypt <T>(string cipherText) where T : SymmetricAlgorithm, new()
{
return(symmetric.Decrypt <T>(cipherText));
}
