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Questions  |  score: 5  |  4.20 5.20 5.98 |  Solved By 227 People  |  110250 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)
aefde1ace4bd943ea6e0be81925ac4ebd6fb4c24u1kd
6a07b1c9440ad26e17ce8604a64a1b3410c50343vdot
7a834a9e18b95015c400c3e8cec212c948399123Nvti
dfec3195e4e6274a427360d247edb0ac8f94c46c1mvq
188d13034e0f013f44da3dc6c7c7d2087fe5871baji0
b9d9b8731a47e2a61676acdbe30c2eaa99c267bcQHk8
fb1b5c87d8c33492ee82f48e9630fbefb375f56cyQwz
a9709d0ad7c2ae6cf62a168541e193689dd264d7aekw
6b86d17fb971b2863d88853f68412974361951dens5i
ba5a40767bc6ffe4e1435ebcb59b5d0a5628c87aqdlI
6e04eb6a1a2b11d62e240796fce9842b521d5429EdPb
33d28206b239eae3ba87afc29227f30af0a5cfd8Vtqf
52bf3757bb80540f8405bcdc0eb768f8d480769cFHwW
cdbe741050a9cc0ff44b163c87d7d4818666a4e4aSgs
bbaa4f0e826cba11bd1741e4fe12f116cd4d2a47eXGV
e42a382a1f3cb703eaccc9751787b3d09208a0a96v91
78e617950cac8fbfbda7f08c54789858245515fd38DW
Your solution for WC Hashing Game
Answer
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