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Questions  |  score: 5  |  4.20 5.20 5.98 |  Solved By 225 People  |  108887 views  |  since Dec 02, 2010 - 19:50:50

WC Hashing Game (Cracking)

WeChall Hashing Game
Welcome to the WeChall Hashing Game.
Your mission is to crack 2 lists of hahes.
The first list is using the WC3 hashing algorithm, which uses some fixed salt md5.
The second list is using the WC4 hashing algorithm, which uses salted sha1.

The solution is the 2 longest plaintexts of each list, concatenated with a comma.
Example solution: wordfrom1,wordfrom1,wordfrom2,wordfrom2.

The goal of this challenge is to demonstrate the advantage of the new algo over the old.
Note: All passwords are lowercase and real english words from a dictionary.
Some thanks go to Z, for encouraging me to change WC4 hashing algorithms.

Happy cracking!
GeSHi`ed PHP code for hg_wc4.php
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<?php
define('HASHGAME_SALT_WC4', 'zomgsalt4');
 
function hashgame_wc4_salt($len = 4)
{        $alpha = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
        $max = strlen($alpha)-1;
        $back = '';
        for ($i = 0; $i < $len; $i++)
        {                $back .= $alpha[rand(0, $max)];
        }
        return $back;
}
 function hashgame_wc4($password)
{
        $salt = hashgame_wc4_salt(4); // Generate random salt.
        return hash('sha1', HASHGAME_SALT_WC4.$password.$salt.HASHGAME_SALT_WC4, false).$salt;
} 
# PS: If you like the algo, you can grab the whole src from /inc/util/Common.php
# All the GWF/WC4 stuff is free as in beer ;)
?>
List of WC4 hashes. (WC4 Algo)
2088d14aaf8e3f057a2c0123a86ec5f11efb7a482pch
c3f420f4acc9c55d9673aabe5b2a049155e774bduMKr
43f5710ff13177029116beface793b283dc4bba6s0Jr
43cbedbe362868534d81ee3ccef2a6ba78babd52fq75
2f4712c0de627c8990d668149873729201828547BZkb
22e2e27389374963c1435be4872d2aebbdad245edP5V
fc61e1646f0f3f5c70b3100e2d57f449bdb6ff51b14x
d652c961831bc20fa537cb2c95b8420a492fe71dxGw7
dce08c1e0c519a45eaf1880ab37260be07d8825eLOs1
195136d3fdd9a8548b87e7955419cfd653518855OUzZ
f73755f83b18a08167412cbde0d0b3dfdff0e009kYBn
f8037584d314ede836e19a8d693cd669a4506d52SnJn
1829f02857bd3d70739f16499a55246bfd0da3ablvWW
d40cd4619c825b89e88d4618b19be84ba268f458JLgl
42c7b47f64054612b3f4880753d27b14551ce03dI0zu
990306c47f4a9623797db3f334039b1a39a68ce1RlcU
ce360aace9a0164365ae67cc822202db96e5dcb1p09M
Your solution for WC Hashing Game
Answer
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