Patent · US Active

Asymmetric protection of circuit designs

US10776522B1 · kind B1 · utility

6Cited by

0References

17Claims

0Family size

Assignee

XILINX, INC. · US

Inventors

Steven E. McNeil · Rio Rancho, US
Jason J. Moore · Albuquerque, US
Theodore A. Ennis · Fountain Hills, US

Key dates

Filing date	Feb 20, 2018
Grant date	Sep 15, 2020
Priority date	—
Expiry date	Nov 30, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/3247
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Protecting circuit designs can include, in response to receiving a first encrypted public key, generating, using a hash circuit within the integrated circuit, a first hash of the first encrypted public key. The first hash can be compared with a second hash that was previously stored within a non-volatile memory of the integrated circuit. In response to determining that the first hash matches the second hash, the first encrypted public key is decrypted resulting in a first decrypted public key. A determination is made whether received configuration data for the device is authentic using the first decrypted public key.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.