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:
Feb. 11, 2014
Filed:
Jun. 11, 2010
Sébastien Canard, Caen, FR;
Amandine Jambert, Nancy, FR;
Eric Malville, Montgermont, FR;
France Telecom, Paris, FR;
Abstract
The invention relates to cryptographic method for the anonymous authentication and the identification of a user entity (U) respectively by a checking entity (D) and an identifying entity (O). According to this method, the checking entity (D) receives () from the user entity (U) at least one first signature (σ) and a first message (m), and checks () the first signature (σ) using the first message (m) in order to authenticate the user (U), and the identifying entity (O) receives () from the checking entity (D) a second signature (σ') connected to the first signature (σ) and identifies () the user using the second signature and a secret key particular thereto. The invention also relates to a cryptographic system for implementing said method.