XF 1.3 Using forum passwords for my game as well.

Hi there,

I'm currently developing a large scale multiplayer game and I would like to use one user account for both the game login as well as the forum login, is this possible? I would like to display trophies and medals for players that they earn in the game on the forums as well. How would I go about decoding the passwords for users to use in a query in my game's mysql statements?