The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Nov. 02, 2023
Capital One Services, Llc, McLean, VA (US);
Kevin Osborn, Newton Highlands, MA (US);
Jeffrey Rule, Chevy Chase, MD (US);
Capital One Services, LLC, McLean, VA (US);
Abstract
Example embodiments of systems and methods for data transmission between a contactless card and a server are provided. The card may include an applet, a counter, and a plurality of encryption keys. The applet may rotate the plurality of keys based on a predetermined key rotation, select one or more keys for a cryptographic operation, perform the operation using the selected keys and the counter to generate a cryptographic result, and transmit the result and the counter to the server. Upon receipt of the result, a server, in communication with the card and containing the plurality of encryption keys, may rotate the plurality of keys based on the predetermined key rotation, select one or more keys for decryption, wherein the keys selected by the server matches the keys selected by the applet, and perform the decryption on the result.