The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2025
Filed:
Dec. 08, 2022
John A. Nix, Evanston, IL (US);
John A. Nix, Evanston, IL (US);
Abstract
A server and a device can support secure sessions with both (i) post-quantum cryptography (PQC) key encapsulation mechanisms (KEM) and (ii) session resumption. In an initial secure session, the device and server can mutually generate a first shared secret key K1 from a first KEM based on a device PKI key pair. The device and server can mutually generate a second shared secret key K2 from a second KEM based on a server PKI key pair. The device and server can mutually generate a symmetric ciphering key S2 from both K1 and K2. The server can encrypt an identity for a 'pre-shared' secret key (PSK-ID) with S2. The device and server can (i) mutually generate a PSK from both K1 and K2 and (ii) close the initial secure session. The device can transmit a message to resume the session, where the message includes the PSK-ID and a MAC value.