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[Phpgroupware-cvs] phpgwapi/inc/adodb/session/crypt.inc.php, 1.2
From: |
nomail |
Subject: |
[Phpgroupware-cvs] phpgwapi/inc/adodb/session/crypt.inc.php, 1.2 |
Date: |
Thu, 30 Dec 2004 07:47:33 +0100 |
Update of /phpgwapi/inc/adodb/session
Added Files:
Branch:
crypt.inc.php
date: 2004/12/30 06:47:33; author: skwashd; state: Exp; lines: +64 -0
Log Message:
new HEAD
=====================================================================
<?php
// Session Encryption by Ari Kuorikoski <address@hidden>
class MD5Crypt{
function keyED($txt,$encrypt_key)
{
$encrypt_key = md5($encrypt_key);
$ctr=0;
$tmp = "";
for ($i=0;$i<strlen($txt);$i++){
if ($ctr==strlen($encrypt_key))
$ctr=0;
$tmp.= substr($txt,$i,1) ^
substr($encrypt_key,$ctr,1);
$ctr++;
}
return $tmp;
}
function Encrypt($txt,$key)
{
srand((double)microtime()*1000000);
$encrypt_key = md5(rand(0,32000));
$ctr=0;
$tmp = "";
for ($i=0;$i<strlen($txt);$i++)
{
if ($ctr==strlen($encrypt_key)) $ctr=0;
$tmp.= substr($encrypt_key,$ctr,1) .
(substr($txt,$i,1) ^
substr($encrypt_key,$ctr,1));
$ctr++;
}
return base64_encode($this->keyED($tmp,$key));
}
function Decrypt($txt,$key)
{
$txt = $this->keyED(base64_decode($txt),$key);
$tmp = "";
for ($i=0;$i<strlen($txt);$i++){
$md5 = substr($txt,$i,1);
$i++;
$tmp.= (substr($txt,$i,1) ^
$md5);
}
return $tmp;
}
function RandPass()
{
$randomPassword = "";
srand((double)microtime()*1000000);
for($i=0;$i<8;$i++)
{
$randnumber = rand(48,120);
while (($randnumber >= 58 &&
$randnumber <= 64) || ($randnumber >= 91 && $randnumber <= 96))
{
$randnumber =
rand(48,120);
}
$randomPassword .=
chr($randnumber);
}
return $randomPassword;
}
}
?>