Abstract: The invention is a method of analyzing the behavior of a secure electronic token which comprises an interface for exchanging data with an external entity. The token has a lifecycle wherein the token is intended to be created then issued. The method comprises the steps of: loading and installing a dedicated application into the token after the electronic token has been issued, spying the data exchanged through the interface and providing the dedicated application with these exchanged data, generating a buffer from the exchanged data by the dedicated application, sending the buffer to an external machine.

Abstract: The invention is a method of analyzing the behavior of a secure electronic token which comprises an interface for exchanging data with an external entity. The token has a lifecycle wherein the token is intended to be created then issued. The method comprises the steps of: loading and installing a dedicated application into the token after the electronic token has been issued, spying the data exchanged through the interface and providing the dedicated application with these exchanged data, generating a buffer from the exchanged data by the dedicated application, sending the buffer to an external machine.

Abstract: The solution refers to an optimization of the memory space further to a data update in a data processing device such as a smartcard (SIM). The data to be updated comes from a remote machine (SRV) communicating with the said card. This machine stores a number of data (Sn) and comprises a storing step for each type of data in different memory areas (Z2,Z3) of the said device.