METHOD FOR UPDATING DATA ON A CHIP, IN PARTICULAR OF A SMART CARD

摘要

The invention concerns a method for secure communication between a security module and a remote server. The invention also concerns a security module. The security module contains a unique identification number (UA). The inventive method is characterized in that it consists in: inserting into said security module (10), an anonymous authentication certificate (CAA); inserting in parallel data concerning the holder of the security module (10) in a database (17) of a management center (18), said data being associated with the unique identification number (UA). When setting up a first communication, the latter is made secure by using the anonymous authentication certificate (CAA). It consists in: transmitting the unique identification number (UA) in encrypted form to the management center (18), associating said unique identification number (UA) with the data concerning the holder of the security module and generating at least one customized authentication certificate (CAP), containing data concerning the holder of said security module derived from said database (17); then transmitting said customized authentication certificate (CAP) in encrypted form to the security module. Subsequent communications between the security module and the remote server use the customized authentication certificate (CAP).