ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,756,544, issued on Oct. 6, was assigned to QuSecure Inc (Petaluma, Calif.).

"Forward secrecy QSL" was invented by Chris Cap (Bayville, N.J.) and Sarah McCarthy (Carrickfergus, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for forward security Quantum Secure Layer (QSL), where the method causing a server to hold long-term public/private Key Encapsulation Mechanism (KEM) keypair; uses KEM to establish a pre-master shared secret; causing the server to send ephemeral KEM public key to the client; uses KEM to establish master shared secret; and generates a session key by the server and encrypted to the client using the master shared se...