[Kde-games-devel] KsirK and Jabber

[Olivier Goffart]

Le mercredi 17 septembre 2008, Matthew Woehlke a écrit :
> Aaron J. Seigo wrote:
> > On Tuesday 16 September 2008, Matthew Woehlke wrote:
> >> - Commit to a course of action
> >> - Tell all clients what you are doing this turn
> >> - Clients send back a partial seed
> >
> > - wait for their seed parts
> > - calculate the missing part of the seed that does you the best favour
> > - send your part of their seed
>
> Ah, good point. BUT... at least you could only ever have one cheater
> using that method ;-).
>
> Yeah... what would be needed is a way to not know the parts of the seed
> until all parts have been sent. Not sure if that's possible or not.

Yes this is possible.
Some cryptograpgy protocols exist.

For exemple, Alice send a hash on her. After that, Bob send his seed. And then 
Alice send her seed and Bob can check that the hash of the Alice seed is 
correct

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