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HashAlgorithm.HashCore Method

When overridden in a derived class, routes data written to the object into the hash algorithm for computing the hash.

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

Protected MustOverride Sub HashCore ( _
	array As Byte(), _
	ibStart As Integer, _
	cbSize As Integer _
Dim array As Byte()
Dim ibStart As Integer
Dim cbSize As Integer

Me.HashCore(array, ibStart, cbSize)
protected abstract void HashCore (
	byte[] array, 
	int ibStart, 
	int cbSize
protected abstract function HashCore (
	array : byte[], 
	ibStart : int, 
	cbSize : int
Not applicable.



The input to compute the hash code for.


The offset into the byte array from which to begin using data.


The number of bytes in the byte array to use as data.

This method is not called by application code.

This abstract method performs the hash computation. Every write to the cryptographic stream object passes the data through this method. For each block of data, this method updates the state of the hash object so a correct hash value is returned at the end of the data stream.

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0