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CryptoStream.Read Method

Reads a sequence of bytes from the current CryptoStream and advances the position within the stream by the number of bytes read.

Namespace:  System.Security.Cryptography
Assembly:  mscorlib (in mscorlib.dll)

public override int Read(
	byte[] buffer,
	int offset,
	int count
)

Parameters

buffer
Type: System.Byte[]

An array of bytes. A maximum of count bytes are read from the current stream and stored in buffer.

offset
Type: System.Int32

The byte offset in buffer at which to begin storing the data read from the current stream.

count
Type: System.Int32

The maximum number of bytes to be read from the current stream.

Return Value

Type: System.Int32
The total number of bytes read into the buffer. This can be less than the number of bytes requested if that many bytes are not currently available, or zero if the end of the stream has been reached.

ExceptionCondition
NotSupportedException

The CryptoStreamMode associated with current CryptoStream object does not match the underlying stream. For example, this exception is thrown when using Read with an underlying stream that is write only.

ArgumentOutOfRangeException

The offset parameter is less than zero.

-or-

The count parameter is less than zero.

ArgumentException

Thesum of the count and offset parameters is longer than the length of the buffer.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0

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