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Apr
11
comment Relaxed trust criterion for mental poker server?
Here's a thought: how about a slight modification of this idea, which generates a single random number fairly among N players: Have the central server initially act as a player, revealing his commitment along with the others. But then all players except him reveal their secret numbers. The server (who now is the only player who knows the final random number) runs the hand, then publishes the result along with his secret number which can be verified with his earlier commitment, and verified as the number used to shuffle the deck.
Apr
11
comment Relaxed trust criterion for mental poker server?
It wouldn't. A false-early timestamp is hard to tell from a valid timestamp in a net-delayed message. But you might be able to show, for example, that a message has an earlier timestamp than another one that had to have preceded it logically for game reasons.