#$EPIC: sha256.txt,v 1.3 2006/08/20 16:57:01 sthalik Exp $
======Synopsis:======
$[[sha256]](//<data>//)

======Purpose:======
The $sha256() function returns the SHA-256 hash value of <data> represented
as a 64-hex-digit string.  This is the value that is used for AES+SHA and 
SED+SHA crypto.  This function is intended more for debugging the builtin 
sha256 support than for use in a script.

======Examples:======
$sha256(booya booya booya boo) returns
62ea80ca6a21d4ab1fec0c5c3227b593ed04309474be04ca03ea74d91fa09c34

======History:======
The $[[sha256]]() function first appeared in EPIC5-0.3.1.