System.Security.Cryptography.CryptoStream.CryptoStream C# (CSharp) Method

CryptoStream Class Documentation 显示文件 Open project: dotnet/corefx

CryptoStream() public method

public CryptoStream ( Stream stream, ICryptoTransform transform, CryptoStreamMode mode, bool leaveOpen ) : System.Diagnostics.Contracts
stream	Stream
transform	ICryptoTransform
mode	CryptoStreamMode
leaveOpen	bool
return	System.Diagnostics.Contracts

        public CryptoStream(Stream stream, ICryptoTransform transform, CryptoStreamMode mode, bool leaveOpen)
        {

            _stream = stream;
            _transformMode = mode;
            _transform = transform;
            _leaveOpen = leaveOpen;
            switch (_transformMode)
            {
                case CryptoStreamMode.Read:
                    if (!(_stream.CanRead)) throw new ArgumentException(SR.Format(SR.Argument_StreamNotReadable, nameof(stream)));
                    _canRead = true;
                    break;
                case CryptoStreamMode.Write:
                    if (!(_stream.CanWrite)) throw new ArgumentException(SR.Format(SR.Argument_StreamNotWritable, nameof(stream)));
                    _canWrite = true;
                    break;
                default:
                    throw new ArgumentException(SR.Argument_InvalidValue);
            }
            InitializeBuffer();
        }