METHOD, CHIP, AND SYSTEM FOR MANAGING A PHYSICALLY UNCLONABLE FUNCTION CHIP PUBLIC KEY

A chip 14 includes at least one PUF type element 142 and at least one hardcoded key 144, the method 20 comprises:- a) receiving 22, by the chip, from an entity 12, a request for getting a signed PUF chip public key certificate;- b) generating 24, as a PUF chip private key, based on the request, a pr...

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Bibliographic Details
Main Authors TEGLIA, Yannick, BERZATI, Alexandre
Format Patent
LanguageEnglish
French
German
Published 01.11.2023
Subjects
ADVERTISING
CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PHYSICS
SEALS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A chip 14 includes at least one PUF type element 142 and at least one hardcoded key 144, the method 20 comprises:- a) receiving 22, by the chip, from an entity 12, a request for getting a signed PUF chip public key certificate;- b) generating 24, as a PUF chip private key, based on the request, a private key relating to the at least one PUF element, and determining 26, as a PUF chip public key, a public key relating to the at least one PUF element;- c) generating 28, as a PUF chip public key certificate, a certificate relating to the PUF chip public key;- d) signing 210 the PUF chip public key certificate using the hardcoded key; ande) sending 212, from the chip to the entity, as a request response, a signed PUF chip public key certificate.
Bibliography:Application Number: EP20210839931