US Patent 10102509 Secure electronic coupon delivery to mobile device

A system, method, device and interface for providing and redeeming an electronic coupon that provides for authenticating access of a user to an electronic coupon server, receiving selection from the user of at least one of an event, transportation, secured location, good, authorization, and service, generating a reservation number corresponding to the selection, encrypting the reservation number based on a first string of characters that is uniquely associated with a mobile device that will be utilized for redeeming the electronic coupon, transmitting the encrypted reservation number to the mobile device, retrieving a second string of characters from the mobile device, wherein the second string of characters corresponds to the first string of characters, decrypting the encrypted reservation number on the mobile device using the retrieved second string of characters, generating the electronic coupon from the decrypted reservation number, and presenting the electronic coupon to an authentication device for redemption.