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CryptoStream.Read Method

Reads a sequence of bytes from the current stream 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.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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