Nette\Security\Passwords::needsRehash PHP Метод

    public static function needsRehash($hash, array $options = [])
    {
        return password_needs_rehash($hash, PASSWORD_BCRYPT, $options);
    }

 /**
  * Performs an authentication against e.g. database.
  * and returns IIdentity on success or throws AuthenticationException
  * @var array $credentials
  * @return Nette\Security\IIdentity
  * @throws Nette\Security\AuthenticationException
  */
 public function authenticate(array $credentials)
 {
     list($username, $password) = $credentials;
     if (is_null($password)) {
         $user = $this->manager->getItem($username);
     } else {
         $user = $this->manager->getUserByUsername($username);
         if (is_null($user->password)) {
             throw new Trejjam\Authorization\User\AuthenticatorException('User has not have defined password.', Trejjam\Authorization\User\AuthenticatorException::NOT_DEFINED_PASSWORD);
         } else {
             if (!Nette\Security\Passwords::verify($password, $user->password)) {
                 throw new Trejjam\Authorization\User\AuthenticatorException('The password is incorrect.', Trejjam\Authorization\User\AuthenticatorException::INVALID_CREDENTIAL);
             } else {
                 if (Nette\Security\Passwords::needsRehash($user->password)) {
                     $this->manager->changePassword($user, $password);
                 }
             }
         }
     }
     if ($this->manager->isEnableLogin($user)) {
         $baseUserArr = (array) $this->manager->getUserInfo($user);
         $baseUserArr["login_time"] = new Nette\Utils\DateTime();
         $role = $this->acl->getUserRoles($user);
         return new Identity($user->id, $role, $baseUserArr);
     } else {
         //this may not happen
         throw new Trejjam\Authorization\User\AuthenticatorException();
     }
 }