At 11:53 PM 11/30/95 +0100, Laurent Demailly wrote:

'small' questions about inet gambling

+ How do you complain that you didn't got your win without revealing your ID ?

+ Alternatively, How do you prevent false complains or nasty concurrent trying to trash gambling co reputation ?

Gambler submits a value that contains a hash of his guess, plus random noise, plus some random numbers resembling random noise that if signed by the bank will become anonymous ecash (once deblinded). Lottery has to acknowledge payments by signing the hashed guess, After the drawing, if the lottery cheats, the winner can prove that the lottery cheated by anonymously revealing the values that when hashed yield the number signed by the lottery. If a disgruntled person makes such an allegation, then in order to prove they did not cheat the lottery must anonymously reveal the numbers signed by the bank. If the reveal this, this proves they are fine, and also pays the gambler, because he holds the deblinding factor which will turn those bank signed numbers into money. Thus not only can it be carried out anonymously, but disputes can be fought anonymously.

regards ps: it would be easier that the game is legal so ppl can play without being hidden... In my current casino, most people do complain when there is a problem, and I think that those who don't aren't because its monopoly money or just they aren't paying much attention...

dl -- Laurent Demailly * http://hplyot.obspm.fr/~dl/ * Linux|PGP|Gnu|Tcl|... Freedom Prime#1: cent cinq mille cent cinq milliards cent cinq mille cent soixante sept

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