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. 19, 2014
Filed:
Feb. 01, 2006
Herve Sibert, Le Mans, FR;
Marc Girault, Caen, FR;
Herve Sibert, Le Mans, FR;
Marc Girault, Caen, FR;
France Telecom, Paris, FR;
Abstract
A method of pre-authentication of a first entity () by a second entity () communicating with each other via a wireless connection. The second entity () sends (') a challenge value (c). If the first entity () receives () a challenge value (c′), it applies to the received challenge value a predefined transformation (g) known to the second entity to obtain a first transformed value (r) and then sends () the first transformed value (r) obtained. If the second entity receives (′) a transformed value (r′), it compares (′) the received transformed value to a second transformed value (r″) obtained by applying the predefined transformation (g) to the challenge value sent and considers the pre-authentication to have succeeded if the result of comparing the second transformed value obtained and the transformed value received is below a predefined threshold (m).