EVOLUTION-NINJA

Edit File: Bcrypt.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Bcrypt {
  private $rounds;
  private $salt_prefix;
  public function __construct($params=array('rounds'=>7, 'salt_prefix'=>'$2y$')) {

if(CRYPT_BLOWFISH != 1) {
      throw new Exception("bcrypt not supported in this installation. See http://php.net/crypt");
    }

$this->rounds = $params['rounds'];
    $this->salt_prefix = $params['salt_prefix'];
  }

public function hash($input) {
    $hash = crypt($input, $this->getSalt());

if(strlen($hash) > 13)
      return $hash;

return false;
  }

public function verify($input, $existingHash) {
    $hash = crypt($input, $existingHash);
    return $hash === $existingHash;
  }

private function getSalt() {
    $salt = sprintf($this->salt_prefix.'%02d$', $this->rounds);

$bytes = $this->getRandomBytes(16);

$salt .= $this->encodeBytes($bytes);

return $salt;
  }

private $randomState;
  private function getRandomBytes($count) {
    $bytes = '';

if(function_exists('openssl_random_pseudo_bytes') &&
        (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN')) { // OpenSSL slow on Win
      $bytes = openssl_random_pseudo_bytes($count);
    }

if($bytes === '' && @is_readable('/dev/urandom') &&
       ($hRand = @fopen('/dev/urandom', 'rb')) !== FALSE) {
      $bytes = fread($hRand, $count);
      fclose($hRand);
    }

if(strlen($bytes) < $count) {
      $bytes = '';

if($this->randomState === null) {
        $this->randomState = microtime();
        if(function_exists('getmypid')) {
          $this->randomState .= getmypid();
        }
      }

for($i = 0; $i < $count; $i += 16) {
        $this->randomState = md5(microtime() . $this->randomState);

if (PHP_VERSION >= '5') {
          $bytes .= md5($this->randomState, true);
        } else {
          $bytes .= pack('H*', md5($this->randomState));
        }
      }

$bytes = substr($bytes, 0, $count);
    }

return $bytes;
  }

private function encodeBytes($input) {
    // The following is code from the PHP Password Hashing Framework
    $itoa64 = './ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';

$output = '';
    $i = 0;
    do {
      $c1 = ord($input[$i++]);
      $output .= $itoa64[$c1 >> 2];
      $c1 = ($c1 & 0x03) << 4;
      if ($i >= 16) {
        $output .= $itoa64[$c1];
        break;
      }

$c2 = ord($input[$i++]);
      $c1 |= $c2 >> 4;
      $output .= $itoa64[$c1];
      $c1 = ($c2 & 0x0f) << 2;

$c2 = ord($input[$i++]);
      $c1 |= $c2 >> 6;
      $output .= $itoa64[$c1];
      $output .= $itoa64[$c2 & 0x3f];
    } while (1);

return $output;
  }
}

/***** End of BCrypt.php ***********/