// PRO: doing this ensure all cipher modes and padding modes supported by .NET will be available with CommonCrypto (drop-in replacements)
// CON: doing this will only process one block at the time, so it's not ideal for performance, but still a lot better than managed
protected override void ECB(byte[] input, byte[] output)
{
IntPtr len = IntPtr.Zero;
CCCryptorStatus s = Cryptor.CCCryptorUpdate((encrypt == encryption) ? handle : handle_e,
input, (IntPtr)input.Length, output, (IntPtr)output.Length, ref len);
if (((int)len != output.Length) || (s != CCCryptorStatus.Success))
{
throw new CryptographicUnexpectedOperationException(s.ToString());
}
}
int Transform(byte[] input, int inputOffset, byte[] output, int outputOffset, int length)
{
IntPtr len = IntPtr.Zero;
IntPtr in_len = (IntPtr)length;
IntPtr out_len = (IntPtr)(output.Length - outputOffset);
fixed(byte *inputBuffer = &input[0])
fixed(byte *outputBuffer = &output [0])
{
CCCryptorStatus s = Cryptor.CCCryptorUpdate(handle, (IntPtr)(inputBuffer + inputOffset), in_len, (IntPtr)(outputBuffer + outputOffset), out_len, ref len);
if (s != CCCryptorStatus.Success)
{
throw new CryptographicException(s.ToString());
}
}
return((int)len);
}
