Secured discount coupons managing method for e.g. merchant, involves attributing benefit to coupon bearer when encrypted information printing zone is unmasked, and to donee organization relative to identifier when another zone is unmasked

摘要

The method involves fabricating coupons constituted by a physical medium with encrypted information printing zones (2, 3) by printing information specific to cards and covering the zones by an opaque cover. A benefit e.g. discount, is attributed to a bearer during presentation of the coupon after removing cover of one zone, and printing on another zone is controlled with a code calculated from an identifier of a donee organization e.g. aid. The benefit is attributed to the bearer if the latter zone is unmasked, and to the organization relative to the identifier if the former zone is unmasked. An independent claim is also included for a discount card for implementing a method for managing discount coupons.