Joomla Password generation

Use the below code for generating joomla password.

        $new_password = "Your password";
       $salt = JUserHelper::genRandomPassword(32);
$crypt = JUserHelper::getCryptedPassword($new_password, $salt);
        $password = $crypt.':'.$salt;

I hope it will help you.. 

Generate Moodle password

For generating a moodle password , first of all include the the configuration page then use the script given below
$password = “new password”;
$moodle_password = md5($password.$CFG->passwordsaltmain);
$password is the actual password and the passwordsaltmain is a hash key generated at moodle installation.