Gaming system with secure electronic payment coupon redemption
A cryptographic key is associated with an identifier (ID) of an electronic gaming machine (EGM). A computing device receives a coupon redemption request including an electronic payment coupon having the EGM ID and a credit amount. The computing device authenticates the electronic payment coupon based at least in part on the cryptographic key associated with the EGM ID and transmits a redemption confirmation when the electronic payment coupon is successfully authenticated. The computing device also stores a cancellation associated with the electronic payment coupon. The cancellation indicates that the electronic payment coupon has been redeemed for the credit amount. Such an electronic payment coupon may, for example, be generated by an EGM and/or be redeemed using an EGM and/or any other computing device capable of receiving the electronic payment coupon, transmitting a redemption request, and providing the credit amount to a user.
1. An electronic gaming machine (EGM) comprising:
a memory area storing an EGM identifier (ID) and a cryptographic key, the EGM ID and the cryptographic key both being uniquely associated with the EGM, wherein the memory area further stores a plurality of instructions;
a display device configured to display to a player a game outcome resulting from execution of a game of chance, wherein the game outcome is associated with a credit amount; and
a processor coupled to the display device and the memory area, wherein the processor, upon executing the plurality of instructions stored in the memory area, causes the processor to at least:
generate an electronic payment coupon including (i) an electronic payment coupon identifier (ID), (ii) a credit balance associated with a gaming session of the game of chance and (iii) the EGM ID in response to a cash-out request at the end of the gaming session;
generate a digital signature for the electronic payment coupon by applying the cryptographic key associated with the EGM to at least one of (i) the electronic payment coupon ID, (ii) the credit balance, and (iii) the EGM ID;
apply the digital signature to the electronic payment coupon to generate a signed electronic payment coupon, wherein the signed electronic payment coupon includes both an encrypted version and an unencrypted version of at least one of (i) the electronic payment coupon ID, (ii) the credit balance, and (iii) the EGM ID; and
transmit the signed electronic payment coupon to a computing device associated with the player from the EGM, at least a portion of the signed electronic payment coupon being displayable on the computing device of the player.
2. The EGM in accordance with claim 1 , wherein the processor, upon executing the plurality of instructions stored in the memory area, further causes the processor to at least:
encode the signed electronic payment coupon as a barcode image; and
transmit the barcode image to the display device, wherein the display device is further configured to display the barcode image.
3. The EGM in accordance with claim 2 , wherein the processor, upon executing the plurality of instructions stored in the memory area, further causes the processor to at least encode the signed electronic payment coupon as a two-dimensional barcode image.
4. The EGM in accordance with claim 1 , wherein the processor, upon executing the plurality of instructions stored in the memory area, further causes the processor to at least transmit the signed electronic payment coupon to the computing device using near field communication.
5. The EGM in accordance with claim 1 , wherein the processor, upon executing the plurality of instructions stored in the memory area, further causes the processor to at least:
determine a player ID associated with the player; and
transmit the signed electronic payment coupon to the computing device based on determining that the computing device is associated with the player ID.
6. The EGM in accordance with claim 5 , wherein the processor, upon executing the plurality of instructions stored in the memory area, further causes the processor to at least receive the player ID from a device presented by the player prior to the execution of the game of chance.
7. The EGM in accordance with claim 1 , wherein the electronic payment coupon ID includes the EGM ID and at least one of a timestamp and a counter value associated with the EGM.
8. The EGM in accordance with claim 1 , wherein the electronic payment coupon includes an encrypted version of the EGM ID and an unencrypted version of the EGM ID.
9. The EGM in accordance with claim 1 , wherein the digital signature is a hash value based on the cryptographic key.