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:
Jun. 20, 2023
Filed:
Jun. 19, 2019
Iot and M2m Technologies, Llc, Evanston, IL (US);
John A. Nix, Evanston, IL (US);
IOT AND M2M TECHNOLOGIES, LLC, Evanston, IL (US);
Abstract
A server can receive a device public key and forward the device public key to a key server. The key server can perform a first elliptic curve Diffie-Hellman (ECDH) key exchange using the device public key and a network private key to derive a secret X. The key server can send the secret Xto the server. The server can derive an ECC PKI key pair and send to the device the server public key. The server can conduct a second ECDH key exchange using the derived server secret key and the device public key to derive a secret X. The server can perform an ECC point addition using the secret Xand secret Xto derive a secret X. The device can derive the secret Xusing (i) the server public key, a network public key, and the device private key and (ii) a third ECDH key exchange.