// LAMESPEC: It's not clear from docs what should be happening
// here if inputCount > InputBlockSize. It just "Converts the
// specified region of the specified byte array" and that's all.
public int TransformBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
{
if (m_disposed)
{
throw new ObjectDisposedException("TransformBlock");
}
if (inputBuffer == null)
{
throw new ArgumentNullException("inputBuffer");
}
if (outputBuffer == null)
{
throw new ArgumentNullException("outputBuffer");
}
if (inputCount < 0)
{
throw new ArgumentException("inputCount", "< 0");
}
if (inputCount > inputBuffer.Length)
{
throw new ArgumentException("inputCount", Locale.GetText("Overflow"));
}
if (inputOffset < 0)
{
throw new ArgumentOutOfRangeException("inputOffset", "< 0");
}
// ordered to avoid possible integer overflow
if (inputOffset > inputBuffer.Length - inputCount)
{
throw new ArgumentException("inputOffset", Locale.GetText("Overflow"));
}
// ordered to avoid possible integer overflow
if (outputOffset < 0)
{
throw new ArgumentOutOfRangeException("outputOffset", "< 0");
}
if (outputOffset > outputBuffer.Length - inputCount)
{
throw new ArgumentException("outputOffset", Locale.GetText("Overflow"));
}
/// To match MS implementation
// if (inputCount != this.InputBlockSize)
// throw new CryptographicException (Locale.GetText ("Invalid input length"));
Base64Helper.TransformBlock(inputBuffer, inputOffset, inputCount, outputBuffer, outputOffset);
return(this.OutputBlockSize);
}