Kohana 3: Login without salt

Question

We're developing a software that will manage users and I need to build an application with Kohana 3 and Auth Module. My application will allow just login. I don't need to append a salt to the passwords when user log in. How could i do that? Thank you.

EDIT:

I know, its wrong but I changed the core. Now I encrypt password without the salt: /kohana/modules/auth/classes/model/auth/user.php

public function login($username, $password, $remember = FALSE)
{
    if (empty($password))
        return FALSE;

    if (is_string($password))
    {
        // Get the salt from the stored password
        //$salt = $this->find_salt($this->password($username));
        // Create a hashed password using the salt from the stored password
        //$password = $this->hash_password($password, $salt);
        $password = sha1($password);
    }

    return $this->_login($username, $password, $remember);
}

Answer 1

of course you need to do this. otherwise you would store the password as a plain text. You didnt specify whether you use file or the orm system. anyway there is no reason for that, since its even harder to hack the salat function out of the login logic, then just to use it as it is.