Abstract: A method for implementing a transaction from a mobile terminal, which includes a data-processing module and a security element on which a plurality of transaction modules are stored. Each transaction module is associated with an electronic card and suitable for authorizing a transaction on behalf of the electronic card when activated upon presentation of an associated confidential code.

Abstract: A method for accessing a service supplied on a mobile terminal by an application server contributing to supplying the service. The method is implemented by the mobile terminal and includes: transmitting a request having a subscriber identifier of a subscriber of a subscription with a mobile operator, the subscriber identifier being based on a piece of information supplied by a security module of the mobile terminal, and inserted in the request without intervention of the user; receiving a response including an identification code relating to the subscriber identifier; transmitting an authentication request Including the identification code, the request being transmitted to an authentication server of the mobile operator; receiving an authentication response including an authentication code relating to the identification code; and transmitting a service access request including the authentication code to the application server.

Abstract: A method for reinitializing an application secret of an application executed by a terminal, the terminal including a security infrastructure to securely manage data for authenticating a user by the terminal. The application is connected to an application server.

Abstract: A method of verifying identity of a user of an object virtualized in a memory connected to a terminal of the user. The object includes an identification data item, relating to identity of the bearer thereof. The terminal communicates with a virtualization server. The virtualization server obtains the identification data item, transmits it to a validation server having control of the object, obtains a first data item about the user, generates a first verification data item as a function of the first data item, and transmits it to the validation server. The validation server obtains a second data item about the bearer, generates a second verification data item as a function of the second data item, the function being identical to that used to generate the first verification data item, compares the first and second verification data items, and validates the identity of the user based on the comparison.

Abstract: A method for accessing a service supplied on a mobile terminal by an application server contributing to supplying the service. The method is implemented by the mobile terminal and includes: transmitting a request having a subscriber identifier of a subscriber of a subscription with a mobile operator, the subscriber identifier being based on a piece of information supplied by a security module of the mobile terminal, and inserted in the request without intervention of the user; receiving a response including an identification code relating to the subscriber identifier; transmitting an authentication request Including the identification code, the request being transmitted to an authentication server of the mobile operator; receiving an authentication response including an authentication code relating to the identification code; and transmitting a service access request including the authentication code to the application server.

Abstract: A method for implementing a transaction from a mobile terminal, which includes a data-processing module and a security element on which a plurality of transaction modules are stored. Each transaction module is associated with an electronic card and suitable for authorizing a transaction on behalf of the electronic card when activated upon presentation of an associated confidential code.

Abstract: A method of verifying identity of a user of an object virtualized in a memory connected to a terminal of the user. The object includes an identification data item, relating to identity of the bearer thereof. The terminal communicates with a virtualization server. The virtualization server obtains the identification data item, transmits it to a validation server having control of the object, obtains a first data item about the user, generates a first verification data item as a function of the first data item, and transmits it to the validation server. The validation server obtains a second data item about the bearer, generates a second verification data item as a function of the second data item, the function being identical to that used to generate the first verification data item, compares the first and second verification data items, and validates the identity of the user based on the comparison.