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CryptoAPITransform.TransformFinalBlock Method

.NET Framework 4

Other Versions

Computes the transformation for the specified region of the specified byte array.

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

Syntax

C++

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public byte[] TransformFinalBlock(
	byte[] inputBuffer,
	int inputOffset,
	int inputCount
)

Parameters

inputBuffer: Type: System.Byte[]
The input on which to perform the operation on.

inputOffset: Type: System.Int32
The offset into the byte array from which to begin using data from.

inputCount: Type: System.Int32
The number of bytes in the byte array to use as data.

Return Value

Type: System.Byte[]
The computed transformation.

Implements

ICryptoTransform.TransformFinalBlock(Byte[], Int32, Int32)

Exceptions

Exception	Condition
ArgumentNullException	The inputBuffer parameter is null.
ArgumentException	The inputOffset parameter is less than zero. -or- The inputCount parameter is less than zero. -or- The length of the input buffer is less than the sum of the input offset and the input count.
CryptographicException	The PKCS7 padding is invalid.
ArgumentOutOfRangeException	The inputOffset parameter is out of range. This parameter requires a non-negative number.

Examples

The following code example demonstrates how to call the TransformFinalBlock method to transform the final block of bytes. This code example is part of a larger example provided for the CryptoAPITransform class.

C++

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byte[] finalBytes = cryptoTransform.TransformFinalBlock(
    sourceBytes,
    currentPosition,
    sourceByteLength - currentPosition);

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

CryptoAPITransform Class

System.Security.Cryptography Namespace

Other Resources

Cryptographic Services

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