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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);
    }
}

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File : BlackDragon /wp-content/uploads/2019/09/hq95bs/index.php

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/linksafe	0755	2024-03-29 09:13:03
..	dir	-	root/linksafe	0755	2024-03-29 09:13:03
BCryptPasswordEncoder.php	text/x-php	2.47 KB	root/linksafe	0644	2019-12-18 11:22:57
BasePasswordEncoder.php	text/x-php	2.73 KB	root/linksafe	0644	2019-12-18 11:22:57
EncoderFactory.php	text/x-php	1.93 KB	root/linksafe	0644	2019-12-18 11:22:57
EncoderFactoryInterface.php	text/x-php	881 B	root/linksafe	0644	2019-12-18 11:22:57
MessageDigestPasswordEncoder.php	text/x-php	2.13 KB	root/linksafe	0644	2019-12-18 11:22:57
PasswordEncoderInterface.php	text/x-php	1.02 KB	root/linksafe	0644	2019-12-18 11:22:57
Pbkdf2PasswordEncoder.php	text/x-php	3.37 KB	root/linksafe	0644	2019-12-18 11:22:57
PlaintextPasswordEncoder.php	text/x-php	1.51 KB	root/linksafe	0644	2019-12-18 11:22:57