creator: zomgwtfbbq
slots: (8/10)
status: open

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winner: 500 karma points + coding award
second: 300 karma points
third: 100 karma points

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stats: tournament statistics

Welcome to the first tournament on Tools & Design.
Your job is to code a program that cracks a random string, the person that cracks his/her string in the least amount of time wins the tournament.:xmas:

After joining and fetching your key this tournament you can activate your cracking frenzy, but before you do this, it's recommended to code your bruteforcer as it will save you lots of time.

The decrypted passwords (sha1) consist of the following characters(regex):
[abcdefz]{12} - only one of the characters is a 'z'

Below is the algorithm of the encryption:

<?php
$sString = "abdcdef";
$iChars = 12;
$iOffset = mt_rand(0,$iChars-2);
$sBuffer = "";
for($x=0;$x<$iChars-1;$x++){
if($iOffset==$x){
$sBuffer .= "z";
}
$sBuffer .= $sString[mt_rand(0,strlen($sString)-1)];
}
$sHash = sha1($sBuffer);
// possible output:
// abcdefzabcde
?>


HINT: Adjust your script so that it will, after bruteforcing is finished, post the result to save some time.

rank	username	start	disqualified	answer	finished	total time
1	Mandara	10-14		efdadzdbddaa		1(m)22(s)
2	zomgwtfbbq	10-12		bddzcadebdcd		13(m)26(s)
3	lasQo	01-30		ddfadbeazdba		13(m)45(s)
4	takedown	03-13		aabbfdcazece		14(m)37(s)
5	valsa	09-29		xxxxxxxxzxxx		85(w)3(d)18(h)
6	criple_ripper	07-30		xxxzxxxxxxxx		94(w)2(d)9(h)
7	alone	10-08		xxxxzxxxxxxx		136(w)2(d)21(h)