US Patent Issued to Cryptography Research on June 3 for "Authentication timers" (California Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,323,418, issued on June 3, was assigned to Cryptography Research Inc. (San Jose, Calif.).

"Authentication timers" was invented by Scott C. Best (Palo Alto, Calif.) and Matthew E. Orzen (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first device transmits a first message to a second device as part of a challenge-response protocol in order to authenticate the second device. A power limited power supply coupled to the second device limits power consumption by the second device during the second device's challenge-response protocol calculations. The first device measures a response time of the second device during the challenge-response prot...