PROCEDURE FOR IMPROVING SECURITY AGAINST THE IMPROPER USE OF A SMART CARD AND SMART CARD TO CARRY OUT THE PROCEDURE.

摘要

Procedure for improving protection against improper use of the smart card that takes the form of a SIM subscriber identification module (1) for use in mobile communication terminals (3), in which a first procedure is provided of authentication (A1), which is optionally carried out before each use of the subscriber identification module (1) and serves as proof of authenticity of a user (5) with respect to the subscriber identification module (1), characterized because, optionally, a second authentication procedure (A2) is provided that serves as proof of user authenticity (5) with respect to the subscriber identification module (1), and is carried out automatically and repeatedly during the use of the module of subscriber identification (1).