SECURE ELEMENT WITH SHARED MEMORIES, FOR A MULTI-IMAGE OWNER DEVICE

A secure element (1) equips a device (2) usable by N image owners, and comprises a first non-volatile memory (4) divided into N parts (4 1 -4 4 ) storing image owner data, a second non-volatile memory (5) storing a primary boot loader (10), a third non-volatile memory (6) divided into N parts (6 1 -6 4 ) storing image owner session private data, a first random access memory (7) divided into N parts (7 1 -7 4 ) associated to the N first non-volatile memory parts (4 1 -4 4 ), a second random access memory (8) for temporarily storing image owner data during an access session, and a controller (9) activated by the primary boot loader (10) when the device (2) starts an access session, and then controlling accesses to the non-volatile memories (4-6) and random access memories (7-8) according to rules, and erasing the second random access memory (8) each time the device (2) starts an access session.