◆ CryptoStream() [2/2]

System.Security.Cryptography.CryptoStream.CryptoStream	(	Stream	stream,
		ICryptoTransform	transform,
		CryptoStreamMode	mode,
		bool	leaveOpen )

inline

Definition at line 81 of file CryptoStream.cs.

    {
        if (transform == null)
        {
            throw new ArgumentNullException("transform");
        }
        _stream = stream;
        _transform = transform;
        _leaveOpen = leaveOpen;
        switch (mode)
        {
        case CryptoStreamMode.Read:
            if (!_stream.CanRead)
            {
                throw new ArgumentException(System.SR.Format(System.SR.Argument_StreamNotReadable, "stream"));
            }
            _canRead = true;
            break;
        case CryptoStreamMode.Write:
            if (!_stream.CanWrite)
            {
                throw new ArgumentException(System.SR.Format(System.SR.Argument_StreamNotWritable, "stream"));
            }
            _canWrite = true;
            break;
        default:
            throw new ArgumentException(System.SR.Argument_InvalidValue, "mode");
        }
        _inputBlockSize = _transform.InputBlockSize;
        _inputBuffer = new byte[_inputBlockSize];
        _outputBlockSize = _transform.OutputBlockSize;
        _outputBuffer = new byte[_outputBlockSize];
    }