Patent ID: 6935953

Claim:
A method in a casino gaming system, the casino gaming system comprising a plurality of casino gaming machines operatively coupled to a host computer via a network, wherein each of the plurality of casino gaming machines has associated therewith a respective unique machine identification number, the method comprising: determining a sequence number associated with a voucher number to be generated, wherein the sequence number is different from sequence numbers associated with voucher numbers previously generated; combining, using a casino gaming machine, the machine identification number associated with the casino gaming machine with the sequence number to form a combined number; performing a cyclic redundancy check (CRC) operation on at least a portion of the combined number, using the casino gaming machine, to generate at least one CRC result; generating a voucher number based on the at least one CRC result and not based on the at least the portion of the combined number using the casino gaming machine; and writing the voucher number generated based on the at least one CRC result to a machine readable medium.