Patent · US Active

System and method for cryptographic key identification

US9667419B2 · kind B2 · utility

1Cited by

1References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Jorge Guajardo Merchan · Pittsburgh, US
Heiko Stahl · Reutlingen, DE
Matthew Lewis · Reutlingen, DE
Andreas Mueller · Kaufbeuren, DE
Ralf Schellin · Reutlingen, DE

Key dates

Filing date	Jan 9, 2015
Grant date	May 30, 2017
Priority date	—
Expiry date	Feb 5, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/73
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for determining a cryptographic key for a MEMS device includes identifying physical properties for the device. A feature vector having a plurality of values is determined. Each of the values correspond to different physical properties. The cryptographic key is determined from the feature vector. The cryptographic key can be determined using a fuzzy extractor. The cryptographic key can be determined using different feature vectors corresponding to different channels in a device or different MEMS structures in the device.

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