ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,625, issued on Dec. 2, was assigned to Capital One Services LLC (McLean, Va.).
"Systems and methods of key selection for cryptographic authentication of contactless cards" was invented by Kevin Osborn (Newton Highlands, Mass.) and Jeffrey Rule (Chevy Chase, Md.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 o...