Secure element with applications

摘要

A secure element (10) is in the form of a chip comprising a processor (11) and a nonvolatile, re-wiitable, memory (14) on which have been stored at least a first application (A1) in a first portion (41) of the memory and a second application (A2) in a second portion (42) of the memory. A method of preparing the secure element (10) comprises invoking (33) code stored in the secure element to recover (34) a memory portion remove occupied by a selected one of the first application (A1) and the second application (A2), leaving a remaining application in the memory. Invoking the code makes (35) the recovered memory portion available for storage of other data. A further invocation of the code is prevented.