In this paper we provide protocols for fair lottery and casino games.These fair protocols enable to remove the trust from the casino/lottery without resorting to another
trusted third party, by allowing the user playing the game to participate in the generation of the specific run of the game.
Furthermore, the user is able to verify the correctness of the execution of the game at the end of the run. On-line lotteries
and on-line casinos have different properties and we address the needs of the two different types of games.
Keywords e-lotteries - e-casinos - delaying functions - fair lotteries - publicly verifiable lotteries
Most of this research was done while the author was a visiting scientist at the IBM T.J. Watson Research Center.
For example, the offcial web site of the New-York lottery is www.nylottery.org while if you enter www.nylottery.com you get
a different web-site that until recently used to offer lotteries.