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:
Sep. 27, 2022
Filed:
Jul. 24, 2020
Arris Enterprises Llc, Suwanee, GA (US);
Alexander Medvinsky, San Diego, CA (US);
Tat Keung Chan, San Diego, CA (US);
ARRIS Enterprises LLC, Suwanee, GA (US);
Abstract
A method is provided for generating a key ladder for securely communicating between a first device and a second device using a first device symmetric key and a chip-unique private key. The method includes generating a second processor-specific first device symmetric key from a first processor-specific first device symmetric key and a first identifier (CPU_ID), generating a chip-unique first device application private key (CUAPrK) from a second identifier and the second processor-specific first device symmetric key, generating a chip-unique first device application public key (CUAPuK) from the chip-unique first device application private key (CUAPrK), and transmitting the chip-unique first device application public key (CUAPuK) and an identifier of the processor to the second device.