Abstract: The invention is a method for managing a secure element that comprises an operating system and a software application including an executable part which is tied to the operating system through a plurality of links. The method comprises the following steps: on receipt of an un-map command, recording in a memory area of the secure element a description of said links using an intermediate language, replacing the operating system by a new operating system by keeping said memory area unchanged, on receipt of a re-map command by the secure element, restoring a new set of links between the executable part and the new operating system by using the description.

Abstract: The invention is a method for managing a secure element that comprises an operating system and a software application including an executable part which is tied to the operating system through a plurality of links. The method comprises the following steps: on receipt of an un-map command, recording in a memory area of the secure element a description of said links using an intermediate language, replacing the operating system by a new operating system by keeping said memory area unchanged, on receipt of a re-map command by the secure element, restoring a new set of links between the executable part and the new operating system by using the description.

Abstract: The invention is a method for restoring to a factory state a secure element which is embedded in a first device and which comprises a set of data. The method comprises the steps of: classifying data of the set in three independent categories, retrieving from a second device a first entity configured to provide factory value of data of the first category, restoring all current data of the first category (C1) by factory value, retrieving from a third device a second entity configured to provide factory value of data of the second category, restoring factory value of data of the second category.

Abstract: The invention relates to a method for carrying out an electronic transaction between a main communication apparatus and a transaction terminal, wherein a smart portable accessory is provided, which has a different format from a standardized chip card format and is capable of relaying the transaction or of representing said main apparatus relative to a transaction terminal; and the transaction is carried out by only presenting said accessory, instead of the main apparatus, to the transaction terminal. The invention also relates to the corresponding system.

Abstract: The invention is a method of analyzing the wear of a non volatile memory embedded in a secure electronic token. A set of events are intended to generate writing and/or erasing operations in said memory. The token comprises a buffer. The method comprises the following steps: each time an event belonging to said set occurs, generating a data which reflects the event and storing said data in the buffer, sending the buffer to a remote machine, analyzing the buffer to determine the wear of the memory.