I need to migrate the user passwords from Drupal 6 site to Drupal 7 Website. I am using the migrate_d2d module for performing the migrations. But the problem I am facing is that the Drupal 6 site uses the salt module which appends an internal string to the users passwords before it is being saved to the database. So migrating the passwords as such doesn't work.
Can any one tell me if there is some way to migrate the user passwords in this case or its not possible??