The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2011
Filed:
Jun. 20, 2005
Stéphanie Salgado, Montrouge, FR;
Jorge Sevilla Abellan, Meudon, FR;
Stéphanie Salgado, Montrouge, FR;
Jorge Sevilla Abellan, Meudon, FR;
Gemalto SA, Meudon, FR;
Abstract
An authentication method including operation of a personal token, a personal token for a terminal in a communication network, an authentication server, and a computer program for an authentication server. The secure server producing derived key material on the basis of a random and a secret key (K), said personal token including program instructions for re-computing the derived key material (Ck, Ik) on the basis of the received random and the secret key (K) as stored in the personal token. The personal token includes program instructions for using a re-computed part of the derived key material in order to interpret the received additional data.