PNG  IHDR pHYs   OiCCPPhotoshop ICC profilexڝSgTS=BKKoR RB&*! J!QEEȠQ, !{kּ> H3Q5 B.@ $pd!s#~<<+"x M0B\t8K@zB@F&S`cbP-`'{[! eDh;VEX0fK9-0IWfH  0Q){`##xFW<+*x<$9E[-qWW.(I+6aa@.y24x6_-"bbϫp@t~,/;m%h^ uf@Wp~<5j>{-]cK'Xto(hw?G%fIq^D$.Tʳ?D*A, `6B$BB dr`)B(Ͱ*`/@4Qhp.U=pa( Aa!ڈbX#!H$ ɈQ"K5H1RT UH=r9\F;2G1Q= C7F dt1r=6Ыhڏ>C03l0.B8, c˱" VcϱwE 6wB aAHXLXNH $4 7 Q'"K&b21XH,#/{C7$C2'ITFnR#,4H#dk9, +ȅ3![ b@qS(RjJ4e2AURݨT5ZBRQ4u9̓IKhhitݕNWGw Ljg(gwLӋT071oUX**| J&*/Tު UUT^S}FU3S ԖUPSSg;goT?~YYLOCQ_ cx,!k u5&|v*=9C3J3WRf?qtN (~))4L1e\kXHQG6EYAJ'\'GgSSݧ M=:.kDwn^Loy}/TmG X $ <5qo</QC]@Caaᄑ.ȽJtq]zۯ6iܟ4)Y3sCQ? 0k߬~OCOg#/c/Wװwa>>r><72Y_7ȷOo_C#dz%gA[z|!?:eAAA!h쐭!ΑiP~aa~ 'W?pX15wCsDDDޛg1O9-J5*>.j<74?.fYXXIlK9.*6nl {/]py.,:@LN8A*%w% yg"/6шC\*NH*Mz쑼5y$3,幄'L Lݛ:v m2=:1qB!Mggfvˬen/kY- BTZ(*geWf͉9+̳ې7ᒶKW-X潬j9(xoʿܔĹdff-[n ڴ VE/(ۻCɾUUMfeI?m]Nmq#׹=TR+Gw- 6 U#pDy  :v{vg/jBFS[b[O>zG499?rCd&ˮ/~јѡ򗓿m|x31^VwwO| (hSЧc3- cHRMz%u0`:o_F@8N ' p @8N@8}' p '#@8N@8N pQ9p!i~}|6-ӪG` VP.@*j>[ K^<֐Z]@8N'KQ<Q(`s" 'hgpKB`R@Dqj '  'P$a ( `D$Na L?u80e J,K˷NI'0eݷ(NI'؀ 2ipIIKp`:O'`ʤxB8Ѥx Ѥx $ $P6 :vRNb 'p,>NB 'P]-->P T+*^h& p '‰a ‰ (ĵt#u33;Nt̵'ޯ; [3W ~]0KH1q@8]O2]3*̧7# *p>us p _6]/}-4|t'|Smx= DoʾM×M_8!)6lq':l7!|4} '\ne t!=hnLn (~Dn\+‰_4k)0e@OhZ`F `.m1} 'vp{F`ON7Srx 'D˸nV`><;yMx!IS钦OM)Ե٥x 'DSD6bS8!" ODz#R >S8!7ّxEh0m$MIPHi$IvS8IN$I p$O8I,sk&I)$IN$Hi$I^Ah.p$MIN$IR8I·N "IF9Ah0m$MIN$IR8IN$I 3jIU;kO$ɳN$+ q.x* tEXtComment

Viewing File: /opt/alt/php55/usr/share/pear/Symfony/Component/Security/Core/Encoder/Pbkdf2PasswordEncoder.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Security\Core\Encoder;

use Symfony\Component\Security\Core\Exception\BadCredentialsException;

/**
 * Pbkdf2PasswordEncoder uses the PBKDF2 (Password-Based Key Derivation Function 2).
 *
 * Providing a high level of Cryptographic security,
 *  PBKDF2 is recommended by the National Institute of Standards and Technology (NIST).
 *
 * But also warrants a warning, using PBKDF2 (with a high number of iterations) slows down the process.
 * PBKDF2 should be used with caution and care.
 *
 * @author Sebastiaan Stok <s.stok@rollerscapes.net>
 * @author Andrew Johnson
 * @author Fabien Potencier <fabien@symfony.com>
 */
class Pbkdf2PasswordEncoder extends BasePasswordEncoder
{
    private $algorithm;
    private $encodeHashAsBase64;
    private $iterations;
    private $length;

    /**
     * Constructor.
     *
     * @param string  $algorithm          The digest algorithm to use
     * @param Boolean $encodeHashAsBase64 Whether to base64 encode the password hash
     * @param integer $iterations         The number of iterations to use to stretch the password hash
     * @param integer $length             Length of derived key to create
     */
    public function __construct($algorithm = 'sha512', $encodeHashAsBase64 = true, $iterations = 1000, $length = 40)
    {
        $this->algorithm = $algorithm;
        $this->encodeHashAsBase64 = $encodeHashAsBase64;
        $this->iterations = $iterations;
        $this->length = $length;
    }

    /**
     * {@inheritdoc}
     *
     * @throws \LogicException when the algorithm is not supported
     */
    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));
        }

        if (function_exists('hash_pbkdf2')) {
            $digest = hash_pbkdf2($this->algorithm, $raw, $salt, $this->iterations, $this->length, true);
        } else {
            $digest = $this->hashPbkdf2($this->algorithm, $raw, $salt, $this->iterations, $this->length);
        }

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

    /**
     * {@inheritdoc}
     */
    public function isPasswordValid($encoded, $raw, $salt)
    {
        return !$this->isPasswordTooLong($raw) && $this->comparePasswords($encoded, $this->encodePassword($raw, $salt));
    }

    private function hashPbkdf2($algorithm, $password, $salt, $iterations, $length = 0)
    {
        // Number of blocks needed to create the derived key
        $blocks = ceil($length / strlen(hash($algorithm, null, true)));
        $digest = '';

        for ($i = 1; $i <= $blocks; $i++) {
            $ib = $block = hash_hmac($algorithm, $salt.pack('N', $i), $password, true);

            // Iterations
            for ($j = 1; $j < $iterations; $j++) {
                $ib ^= ($block = hash_hmac($algorithm, $block, $password, true));
            }

            $digest .= $ib;
        }

        return substr($digest, 0, $this->length);
    }
}
Back to Directory=ceiIENDB`