System and method for tokenization

US11429965B2 · kind B2 · utility

Assignee

• CardinalCommerce Corporation · US

Inventors

• Michael A. Keresman, III · Kirtland Hills, US
• Chandra S. Balasubramanian · University Heights, US
• Gary Bender · San Rafael, US
• Mark Carlson · Rue de l'Église, US
• Edward Katzin · San Francisco, US
• Francis M. Sherwin · Mentor, US

Key dates

• Filing date: Jan 28, 2021
• Grant date: Aug 30, 2022
• Expiry date: Jan 28, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L63/0428
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A method for obscuring a value of a sensitive data element includes: (a) receiving the sensitive data element, the sensitive data element being received over a data communications network (110) at a hardware computing device (142) of a trusted tokenization service provider (140); (b) generating a token corresponding to the received sensitive data element; (c) storing the token and sensitive data element in a memory device (146) such that they are correlated with one another; (d) providing the generated token to a first party (130) that uses the token in place of the sensitive data element in a request for authorization to complete a transaction, the request being sent from the first party (130); (e) intercepting the request for authorization including the token; (f) using the token contained in the intercepted request to look-up and retrieve the correlated sensitive data element in the memory device (160); (g) replacing the token contained in the request with the sensitive data element retrieved from the memory device (160); and (h) forwarding the request containing the sensitive data element to a second party (160 and/or 162) which employs the sensitive data element to determine w…