Getting massive acceptance of Bitcoin

[Hal]

It's possible to do purely P2P poker using cryptography to shuffle the cards. The problem is that either all n players have to cooperate to decrypt a card, in which case if any player leaves the hand can't be completed; or t < n players suffice to decrypt a card, in which case any t players could collude to learn other players' cards. But it could work for a friendly game.

[1714836663]

1714836663

[fabianhjr]

As a matter of fact it is possible using Public key crypto!

Handshake:
-Generate a key pair.(And keep track of all of them so they can't be reused)
-Hash the private key of both for the pseudo random generator and create the "random" deck.(Separate decks. Maybe cards are not going to be the ideal P2P betting game xD)
-Whoever has the digest of smallest value of their public key"A" draws a card first then "B". One by one hashing their signed card and communicating it to the other.(Which he won't be able to interpret at this point, though, he can validate it later on)
-Play whatever betting game you wish.
-Validate the other didn't cheat(He gives you the signed cards he draw and you compare them to the hashes.

Hopefully I word it correctly. You got the basic idea.

[genjix]

It's possible to do purely P2P poker using cryptography to shuffle the cards. The problem is that either all n players have to cooperate to decrypt a card, in which case if any player leaves the hand can't be completed; or t < n players suffice to decrypt a card, in which case any t players could collude to learn other players' cards. But it could work for a friendly game.

Actually that's very slow. If you do choose to accept a central server (that they generate unbiased random numbers) then you can do a distributed shuffle. However you have the problem of one person leaving with their keys when they loose.

Then you have the other problem of needing an escrow to hold the funds in the current pot. It's definitely something I want to do in the future to protect against super-users but not a priority right now.

[kiba]

Something gottach be THE killer app, right?

Which one?

[MoonShadow]

Something gottach be THE killer app, right?

Which one?

Let the market decide.