ALEXANDRIA, Va., July 14 -- United States Patent no. 12,683,771, issued on July 14, was assigned to ASSA ABLOY AB (Stockholm).

"Non-repudiation-free public key authentication protocols" was invented by Pasquale Noce (Naples, Italy) and Martin Kaufmann (Graz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for securely communicating with an access control system are provided. The methods and systems establish, between first and second devices, a communication session based on a plurality of ephemeral keys. The methods and systems compute, by the first device, a shared session key as a function of a second public key of the second device and a sum of a first private key of the first ...