php_library/fboprime/crhsh.inc

<?php
//$Header: /hl/cvsroots/gpl01/gpl01/webprojs/fboprime/sw/phplib/crhsh.inc,v 1.4 2006/04/08 07:14:16 dashley Exp $
//********************************************************************************
//Copyright (C)2006 David T. Ashley
//********************************************************************************
//This program or source file is free software; you can redistribute it and/or 
//modify it under the terms of the GNU General Public License as published by
//the Free Software Foundation; either version 2 of the License, or (at your 
//option) any later version.
//
//This program or source file is distributed in the hope that it will 
//be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU General Public License for more details.
//
//You may have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//********************************************************************************
//Dave Ashley, 04/06
//
//This source file contains cryptographic hash function(s).
//
//The site hash key must be included, as this is used for all hashing functions.
//
require_once("sitehashkey.inc");
//
//As it turns out, because PHP provides for functions with variable numbers of arguments,
//only one function is required to meet all cryptographic hashing functions.
//
//--------------------------------------------------------------------------------
//The return value is an MD5 hash of the arguments intermingled with the key.
//
//The function is always deterministic (the same inputs will always produce the same 
//output).
//
//Unit-tested 20060408.
//
function CRHSH_hashva()
   {
   $input = SITEHASHKEY_SITEHASHKEY;

   $num_args = func_num_args();

   for ($i=0; $i<$num_args; $i++)
      {
      $input .= ((string) func_get_arg($i));
      $input .= SITEHASHKEY_SITEHASHKEY;
      }

   $rv = md5($input);

   return($rv);
   }
//--------------------------------------------------------------------------------
?>
1	<?php
2	//$Header: /hl/cvsroots/gpl01/gpl01/webprojs/fboprime/sw/phplib/crhsh.inc,v 1.4 2006/04/08 07:14:16 dashley Exp $
3	//********************************************************************************
4	//Copyright (C)2006 David T. Ashley
5	//********************************************************************************
6	//This program or source file is free software; you can redistribute it and/or
7	//modify it under the terms of the GNU General Public License as published by
8	//the Free Software Foundation; either version 2 of the License, or (at your
9	//option) any later version.
10	//
11	//This program or source file is distributed in the hope that it will
12	//be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
13	//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	//GNU General Public License for more details.
15	//
16	//You may have received a copy of the GNU General Public License
17	//along with this program; if not, write to the Free Software
18	//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19	//********************************************************************************
20	//Dave Ashley, 04/06
21	//
22	//This source file contains cryptographic hash function(s).
23	//
24	//The site hash key must be included, as this is used for all hashing functions.
25	//
26	require_once("sitehashkey.inc");
27	//
28	//As it turns out, because PHP provides for functions with variable numbers of arguments,
29	//only one function is required to meet all cryptographic hashing functions.
30	//
31	//--------------------------------------------------------------------------------
32	//The return value is an MD5 hash of the arguments intermingled with the key.
33	//
34	//The function is always deterministic (the same inputs will always produce the same
35	//output).
36	//
37	//Unit-tested 20060408.
38	//
39	function CRHSH_hashva()
40	{
41	$input = SITEHASHKEY_SITEHASHKEY;
42
43	$num_args = func_num_args();
44
45	for ($i=0; $i<$num_args; $i++)
46	{
47	$input .= ((string) func_get_arg($i));
48	$input .= SITEHASHKEY_SITEHASHKEY;
49	}
50
51	$rv = md5($input);
52
53	return($rv);
54	}
55	//--------------------------------------------------------------------------------
56	?>