Multi-State Lottery Association

Robert J Nitz

A lottery transaction processing method is provided and includes receiving a lottery play request by a lottery play generation processor. The method further includes generating play information including a unique play serial number, and a play random number key, by the play generation processor, generating a play digital signature as a function of the play information and the play random number key by the play generation processor, transmitting the play information and the play digital signature, but not the play random number key, over a network to a gaming system server for storage by the gaming system server, and issuing a lottery play record including the play information and the play random number key by the play generation processor.

Lottery transaction processing system

A method for operating a lottery through a plurality of lottery entities. Each of the lottery entities generates a respective plays hash of a set of play transactions issued by the entity for a lottery game, and a digital signature as a function of the plays hash, before a game drawing. Each of the plurality of lottery entities publishes the respective digital signature, followed by the respective plays hash, to other entities of the plurality of lottery entities and/or a central authority. A random number seed is generated as a function of the published plays hashes. One or more random draw numbers for the game drawing are generated as a function of the random number seed.

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Ames, IA, United States of America

Robert J Nitz