COUPON VERIFICATION SYSTEM AND COUPON VERIFICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a coupon verification system for prohibiting identifying a terminal holding a coupon issued by an issuance station and prohibiting a terminal excluding a terminal to which a coupon is issued by the issuance station from using the coupon.SOLUTION: A coupon verification system includes: an issuance station for issuing a coupon; a mobile terminal for using the coupon acquired from the issuance station; and a verification device for permitting the mobile terminal to use the coupon according to a result obtained by verifying the coupon acquired from the mobile terminal. The mobile terminal acquires a coupon including first information for identifying a result of calculation performed in the terminal on the basis of a random number value transmitted from the issuance station and a unique value of the terminal, and the random number value from the issuance station; receives a random number value included in the coupon transmitted to the verification device from the verification device; transmits second information for identifying a result of calculation performed in the terminal on the basis of the acquired random number value and unique value of the terminal to the verification device; and makes the coupon be available according to correspondence between the first information and second information.