public static byte[] DecryptData(string password, AutoSaltSizes saltSize, byte[] data, SymmetricCryptoAlgorithm algorithm = SymmetricCryptoAlgorithm.AES_256_CBC)
{
DecryptionBuffer decBuffer = new DecryptionBuffer(password, saltSize, algorithm);
decBuffer.AddData(data, true);
return(decBuffer.GetData());
}
public static void DecryptStream(string password, AutoSaltSizes saltSize, Stream inputStream, Stream outputStream, SymmetricCryptoAlgorithm algorithm = SymmetricCryptoAlgorithm.AES_256_CBC)
{
if (!inputStream.CanRead)
{
throw new Exception("The input stream has to support read");
}
if (!outputStream.CanWrite)
{
throw new Exception("The output stream has to support write");
}
DecryptionBuffer decBuffer = new DecryptionBuffer(password, saltSize, algorithm);
byte[] readBuffer = new byte[500000];
bool isLastData = false;
while (!isLastData)
{
int nrOfBytes = inputStream.Read(readBuffer, 0, readBuffer.Length);
isLastData = (nrOfBytes == 0);
decBuffer.AddData(readBuffer, 0, nrOfBytes, isLastData);
byte[] decryptedData = decBuffer.GetData();
outputStream.Write(decryptedData, 0, decryptedData.Length);
}
}
public string Decrypt(string cypherText)
{
String pass = Password;
DecryptionBuffer decBuffer = new DecryptionBuffer(pass, Salt, SymmetricCryptoAlgorithm.AES_192_CBC);
if (cypherText.Contains(" "))
{
return(cypherText);
}
decBuffer.AddData(Convert.FromBase64String(cypherText), true);
byte[] decryptedBytes = decBuffer.GetData();
return(Encoding.Unicode.GetString(decryptedBytes));
}