How to prevent a hacked-server from spoofing a master server?

Posted by Cody Smith on Game Development See other posts from Game Development or by Cody Smith
Published on 2012-11-30T07:14:34Z Indexed on 2012/11/30 11:23 UTC
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networking

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multiplayer

I wish to setup a room-based multilayer game model where players may host matches and serve as host (IE the server with authoritative power). I wish to host a master server which tracks player's items, rank, cash, exp, etc.

In such a model, how can I prevent someone that is hosting a game (with a modified server) from spoofing the master server with invalid match results, thus gaining exp, money or rankings.

Thanks. -Cody

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