Patent · US Active

Method and unique cryptographic device with a physically unclonable function

US10027482B2 · kind B2 · utility

0Cited by

4References

16Claims

0Family size

Assignee

NAGRAVISION SARL · CH

Inventors

Marco Macchetti · Crissier, CH
Claudio FAVI · Crissier, CH

Key dates

Filing date	Jun 17, 2014
Grant date	Jul 17, 2018
Priority date	—
Expiry date	Jan 14, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/0866
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method and a cryptographic device for encrypting/decrypting an input message by using an algorithm having as entries, said input message, a cryptographic key, and a complementary unique value used as parameter of the algorithm. The output data is formed by the input message decrypted/encrypted by the algorithm using the cryptographic key and the complementary value. The latter is determined on the basis of a unique value physically bound to an electronic device by using a physically unclonable function (PUF) which is inherent to this device and which is used to generate this unique value from a plurality of physical measurements carried out on components integrated in said device.

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