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msd2/myoos/includes/lib/adodb/session/old/crypt.inc.php

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+<?php
+//	 Session Encryption by Ari Kuorikoski <ari.kuorikoski@finebyte.com>
+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;
+		}
+
+}