Two-Way, Token-Based Validation for NFC-Enabled Transactions

A method for facilitating the two-way validation of electronic tickets in order to provide a person access to a system, good, service or location, the method comprising the steps of:

• generating, by a server, at least one cryptographic key;
• sending, by said server and via a communications network, said cryptographic key to a plurality of validator devices;
• generating, by said server and in response to receiving a request for a ticket from a mobile device, an electronic ticket based on said cryptographic key;
• sending, by said server, said electronic ticket to said mobile device;
• receiving, at one of said plurality of validator devices, authentication data from said mobile device as a result of said mobile device being brought within close proximity of said one of said plurality of validator devices by the person, wherein said authentication data is based on said cryptographic key;
• validating, by said one of said plurality of validator devices, said authentication data received from said mobile device based on said cryptographic key;
• sending, by said one of said plurality of validator devices in response to validating said authentication data, a request for said electronic ticket;
• receiving, by said one of said plurality of validator devices, an electronic transmission based upon said electronic ticket from said mobile device when said mobile device authenticates said request based on said cryptographic key;
• validating, by said one of said plurality of validator devices in response to said electronic transmission, said electronic ticket based on said cryptographic key;
• and
• providing the person access to the system, good, service or location in response to validating said electronic ticket.

A method for generating and validating electronic tokens, the method comprising the steps of:

• associating, by a server, each one of a plurality of cryptographic keys with one of a plurality of time periods;
• transmitting, by said server, said plurality of cryptographic keys to each of a plurality of disparately-located validator devices;
• generating, by said server in response to receiving a request from a mobile device during one of said plurality of time periods, a first electronic token, wherein said first electronic token is based upon one of said plurality of cryptographic keys associated with one of said plurality of time periods relevant to when said request was received;
• sending, by said server, said first electronic token to said mobile device;
• receiving, at one of said plurality of validator devices, a transmission of said first electronic token from said mobile device, wherein said transmission results from bringing said mobile device within close proximity to said one of said plurality of validator devices;
• and
• validating, by said one of said plurality of validator devices, said first electronic token based on said one of said plurality of cryptographic keys associated with said one of said plurality of time periods.

One or more computer storage media having stored thereon multiple instructions that implement a two-way, token-based validation of contactless transaction component by, when executed by one or more processors of a computing device, causing the one or more processors to:

• provide a graphical user interface, via a communications network, to a plurality of NFC-enabled mobile devices;
• store a plurality of time slots for a plurality of days in a time slot database;
• generate a plurality of time slot keys, each corresponding to one of said plurality of time slots;
• store said plurality of time slot keys in a time slot keys database;
• generate a plurality of unique identification numbers, each corresponding to one of said plurality of NFC-enabled mobile devices;
• store said plurality of unique identification numbers in an identification database;
• generate a plurality of time-based tokens, each is generated using one of said plurality of time slot keys and one of said plurality of unique identification numbers;
• and
• facilitate a transaction when one of said plurality of NFC-enabled mobile devices is presented to one of said plurality of validator devices, wherein said transaction is secured by a two-way authentication based upon one of said plurality of time-based tokens.