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Message-ID: <53CFB81C.7080306@onsec.ru>
Date: Wed, 23 Jul 2014 17:26:52 +0400
From: D0znpp <d0znpp@...ec.ru>
To: john-users@...ts.openwall.com
Subject: Simfony2 hashes

Hi all!

Does anybody already cracked this by JTR?

https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Security/Core/Encoder/MessageDigestPasswordEncoder.php:

    public function __construct($algorithm = 'sha512',
$encodeHashAsBase64 = true, $iterations = 5000)

...

    public function encodePassword($raw, $salt)
    {
        if ($this->isPasswordTooLong($raw)) {
            throw new BadCredentialsException('Invalid password.');
        }

        if (!in_array($this->algorithm, hash_algos(), true)) {
            throw new \LogicException(sprintf('The algorithm "%s" is not
supported.', $this->algorithm));
        }

        $salted = $this->mergePasswordAndSalt($raw, $salt);
        $digest = hash($this->algorithm, $salted, true);

        // "stretch" hash
        for ($i = 1; $i < $this->iterations; $i++) {
            $digest = hash($this->algorithm, $digest.$salted, true);
        }

        return $this->encodeHashAsBase64 ? base64_encode($digest) :
bin2hex($digest);

...

    protected function demergePasswordAndSalt($mergedPasswordSalt)
    {
        if (empty($mergedPasswordSalt)) {
            return array('', '');
        }

        $password = $mergedPasswordSalt;
        $salt = '';
        $saltBegins = strrpos($mergedPasswordSalt, '{');

        if (false !== $saltBegins && $saltBegins + 1 <
strlen($mergedPasswordSalt)) {
            $salt = substr($mergedPasswordSalt, $saltBegins + 1, -1);
            $password = substr($mergedPasswordSalt, 0, $saltBegins);
        }

        return array($password, $salt);
    }

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