md5 decode

[adex3g]

Please how to decode md5, i use md5 to insert member pass to database, how can get the original password back from db.

[arnage]

It can't. md5 is one way hash.

[something else]

google is the best md5 decoder tool :P but that wont decode everything lol

Added after 3 minutes:

i guess you could ask Ronald Rivest for the algorithm to decode it rofl

[arnage]

Thats probably why people using salt or hashing hashed hash.

[something else]

yeah its surprising that no one has figured out md5 algorithm as is 20 years old now

[adex3g]

Ok i am coding a new script, i want if member 4get there password, i want to send back their original pass to his/her email, any idia?

[something else]

Replace it with a new pass :P

[adex3g]

I dont like that method, but no choice lol.

[something else]

oh by the looks of things md5 has been cracked: MD5 - Wikipedia, the free encyclopedia

[adex3g]

Thank let me checkout

[kei_ki7]

Make your own encryption , so that you can decode it back.

[subzero]

Encoded

<?PHP
 
   $text = "PHP rocks!";
   $encoded = PREG_REPLACE(
           "'(.)'e"
         ,"dechex(ord('\\1'))"
         ,$text
   );
   PRINT "ENCODED: $encoded\n";
 
?>

ENCODED: 50485020726f636b7321

Decode

<?PHP
 
   PRINT "DECODED: ".PREG_REPLACE(
       "'([\S,\d]{2})'e"
     ,"chr(hexdec('\\1'))"
     ,$encoded)."\n";
 
?>

DECODED: PHP rocks!

[adex3g]

Hmm @subzero thanks, but the method suck, easy to hack

[subzero]

<?php
// :::: encode your password :::: // 
function encode($string,$key) {
    $key = sha1($key);
    $strLen = strlen($string);
    $keyLen = strlen($key);
    for ($i = 0; $i < $strLen; $i++) {
        $ordStr = ord(substr($string,$i,1));
        if ($j == $keyLen) { $j = 0; }
        $ordKey = ord(substr($key,$j,1));
        $j++;
        $hash .= strrev(base_convert(dechex($ordStr + $ordKey),16,36));
    }
    return $hash;
}
// :::: Decode your password :::: // 
function decode($string,$key) {
    $key = sha1($key);
    $strLen = strlen($string);
    $keyLen = strlen($key);
    for ($i = 0; $i < $strLen; $i+=2) {
        $ordStr = hexdec(base_convert(strrev(substr($string,$i,2)),36,16));
        if ($j == $keyLen) { $j = 0; }
        $ordKey = ord(substr($key,$j,1));
        $j++;
        $hash .= chr($ordStr - $ordKey);
    }
    return $hash;
}
?>

How to use.

Encode:
echo encode("Please Encode Me!","Your Hidden Password To EnCode!");

Result:
p3e4e4241674d2r4m4i5o464a4f2p3k5c2


Decode:
echo decode("p3e4e4241674d2r4m4i5o464a4f2p3k5c2","Your Hidden Password To EnCode!");

Result:
Please Encode Me!

Now this is Hard to Crack or better off not building a site