When overridden in a derived class, finalizes the hash computation after the last data is processed by the cryptographic stream object.
protected override byte HashFinal()
System .Byte  The computed hash code in a byte array.
This method is not called by application code. This method finalizes any partial computation and returns the correct hash value of the data stream.
Supported in: 4, 3.5, 3.0, 2.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
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.