A1 hack

a1.php

<?php
//Added for prevent changes in a1_cores
/**
 * User AUTHENTICATION module for Kohana PHP Framework using bcrypt
 *
 * bcrypt is highly recommended by many to safely store passwords. For more
 * information, see http://codahale.com/how-to-safely-store-a-password/
 *
 * Based on Kohana's AUTH, Fred Wu's AUTHLITE and Woody Gilk's Bonafide
 *
 * @copyright  (c) 2011 Wouter
 * @copyright  (c) 2011 Woody Gilk
 * @copyright  (c) 2011 Fred Wu
 * @copyright  (c) 2011 Kohana Team
 * @license    MIT
 */
class A1 extends A1_Core {

	// Allowed salt characters
	const SALT = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';

        /**
	 * Return a static instance of A1.
	 *
	 * @return  object
	 */
	public static function instance($_name = 'a1')
	{
		static $_instances;

		if ( ! isset($_instances[$_name]))
		{
			$_config = Kohana::$config->load($_name);
			$_driver = isset($_config['driver']) ? $_config['driver'] : 'ORM';
			$_class  = 'A1_' . ucfirst($_driver);

			$_instances[$_name] = new $_class($_name, $_config);
		}

		return $_instances[$_name];
	}

	/**
	 * Generates bcrypt hash for input
	 *
	 * @param   string   value to hash
	 * @param   string   salt (optional, will be generated if missing)
	 * @param   int      cost (optional, will be read from config if missing)
	 * @return  string   hashed input value
	 */
	public function hash($input, $salt = NULL, $cost = NULL)
	{
                return sha1($input);        
	}

	/**
	 * Checks if password matches hash
	 *
	 * @param   string   password
	 * @param   string   hashed password
	 * @return  boolean  password matches hashed password
	 */
	public function check($password, $hash)
	{
            return ($this->hash($password) === $hash);        
	}
        
        protected function _load_user($username){}

} // End A1