Patent · US Active

Recording of a key in an integrated circuit

US8316221B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignee

PROTON WORLD INTERNATIONAL N.V. · BE

Inventors

Joan Daemen · Overpelt, BE
Thierry Huque · Grand-Rosière-Hottomont, BE
Paul Fontaine · Langenfeld, DE

Key dates

Filing date	Jul 22, 2005
Grant date	Nov 20, 2012
Priority date	—
Expiry date	Jan 1, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06Q20/40975
WIPO fieldIT methods for management
WIPO sectorElectrical engineering

Abstract

A method and a system for personalizing electronic elements, by replacing, in a non-volatile memory of each of the electronic elements a first secret key with a second secret key, by a secure authentication module automatically generating the second key after having restored the first one from an identifier of the element being personalized, including conditioning, on the authentication module side, the provision of the second key to a current element to the reception of a message confirming the key replacement of at least one preceding element.

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