/lib/PasswordLib/Password/Implementation/Hash.php
PHP | 113 lines | 44 code | 9 blank | 60 comment | 2 complexity | 0cf49ad4bdd02673a851b33ed17cf718 MD5 | raw file
- <?php
- /**
- * The basic Hash implementation.
- *
- * It's worth noting, since there's no prefix, you cannot create a hash using
- * the factory method.
- *
- * PHP version 5.3
- *
- * @category PHPPasswordLib
- * @package Password
- * @subpackage Implementation
- * @author Anthony Ferrara <ircmaxell@ircmaxell.com>
- * @copyright 2011 The Authors
- * @license http://www.opensource.org/licenses/mit-license.html MIT License
- * @version Build @@version@@
- */
- namespace PasswordLib\Password\Implementation;
- use PasswordLib\Random\Factory as RandomFactory;
- /**
- * The basic Hash implementation.
- *
- * It's worth noting, since there's no prefix, you cannot create a hash using
- * the factory method.
- *
- * @category PHPPasswordLib
- * @package Password
- * @subpackage Implementation
- * @author Anthony Ferrara <ircmaxell@ircmaxell.com>
- */
- class Hash extends \PasswordLib\Password\AbstractPassword {
- /**
- * @var Hash The hash function to use (MD5)
- */
- protected $defaultOptions = array(
- 'hash' => 'sha512',
- );
- /**
- * Determine if the hash was made with this method
- *
- * @param string $hash The hashed data to check
- *
- * @return boolean Was the hash created by this method
- */
- public static function detect($hash) {
- $res = preg_match('/^[a-fA-F0-9]+$/', $hash);
- $res &= (int) in_array(strlen($hash), array(32, 40, 64, 128));
- return (boolean) $res;
- }
- /**
- * Load an instance of the class based upon the supplied hash
- *
- * @param string $hash The hash to load from
- *
- * @return Password the created instance
- * @throws InvalidArgumentException if the hash wasn't created here
- */
- public static function loadFromHash($hash) {
- if (!static::detect($hash)) {
- throw new \InvalidArgumentException('Hash Not Created Here');
- }
- $hashMethod = '';
- switch (strlen($hash)) {
- case 32:
- $hashMethod = 'md5';
- break;
- case 40:
- $hashMethod = 'sha1';
- break;
- case 64:
- $hashMethod = 'sha256';
- break;
- case 128:
- $hashMethod = 'sha512';
- break;
- }
- return new static(array('hash' => $hashMethod));
- }
- /**
- * Create a password hash for a given plain text password
- *
- * @param string $password The password to hash
- *
- * @return string The formatted password hash
- */
- public function create($password) {
- throw new \BadMethodCallException(
- 'Unsalted Passwords are only implemented for verification'
- );
- }
- /**
- * Verify a password hash against a given plain text password
- *
- * @param string $password The password to hash
- * @param string $hash The supplied ahsh to validate
- *
- * @return boolean Does the password validate against the hash
- */
- public function verify($password, $hash) {
- $password = $this->checkPassword($password);
- $test = hash($this->options['hash'], $password);
- return $this->compareStrings($test, $hash);
- }
- }