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:
Sep. 03, 2020
Arista Networks, Inc., Santa Clara, CA (US);
Baptiste Elie Franck Covolato, Vancouver, CA;
Dipankar Bhatt Acharya, Saratoga, CA (US);
Ethan Barnett Rahn, Agoura Hills, CA (US);
Gil Adrian Torres, San Francisco, CA (US);
ARISTA NETWORKS, INC., Santa Clara, CA (US);
Abstract
Verifying a hardware license and controlling hardware features includes receiving a first part of a license payload and a license signature covering the license payload from a CPU, the license signature being generated using a private encryption key; receiving a second part of the license payload from a memory, the CPU being unable to modify the second part of the license payload; generating a hash using the first part and the second part of the license payload; and verifying the license signature using the hash and a public encryption key associated with the private encryption key. When the verifying is successful, communicating with circuitry to enable functionality of the circuitry specified in the license payload.