Patent · US Active

Integrated circuit lifecycle security with redundant and overlapping crosschecks

US10289871B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

NXP USA, Inc. · US

Inventors

Michael Rohleder · Unterschleißheim, DE
Stefan Doll · Obermoschel, DE
Clemens Alfred Roettgermann · Munich, DE

Key dates

Filing date	Nov 2, 2015
Grant date	May 14, 2019
Priority date	—
Expiry date	May 26, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/26
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An integrated circuit includes a security module with multiple stages arranged in a pipeline, with each stage executing a different operation for accessing stored lifecycle (LC) information. For each portion of LC being accessed, each stage performs N iterations of its corresponding operation, whereby N is an integer greater than two, and crosschecks the results of successive iterations to ensure that the results of the operation are consistent. In addition, the stages of the security module are overlapping, such that different stages can perform different iterations concurrently. These concurrent operations at different stages are organized such that they may also be crosschecked and thereby confirm “offset” results between the stages.

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