ALEXANDRIA, Va., July 30 -- United States Patent no. 12,375,304, issued on July 29, was assigned to Visa International Service Association (San Francisco).

"Mutual authentication of confidential communication" was invented by Eric Le Saint (Los Altos, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the invention relate to systems and methods for confidential mutual authentication. A first computer may blind its public key using a blinding factor. The first computer may generate a shared secret using its private key, the blinding factor, and a public key of a second computer. The first computer may encrypt the blinding factor and a certificate including its public key using the shared sec...