public static byte[] EncryptOrDecryptData(bool encrypt, byte[] data, int start, int length)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
ICryptoTransform cryptoTransform = (encrypt ? EncryptionAlgorithm.CreateEncryptor() :
EncryptionAlgorithm.CreateDecryptor());
MemoryStream stream = new MemoryStream();
using (CryptoStream cryptoStream = new CryptoStream(stream, cryptoTransform, CryptoStreamMode.Write))
{
cryptoStream.Write(data, start, length);
cryptoStream.FlushFinalBlock();
return(stream.ToArray());
}
}
private void InitializeDecryptor(byte[] key, byte[] initializationVector)
{
Decryptor = EncryptionAlgorithm.CreateDecryptor(key, initializationVector);
}
