Management process of secret keys between two IC-cards

摘要

According to the invention, the process consists in - supplying the same random number to each of the IC cards (C1 and C2); - transmitting a first identity code (ID1) from the first to the second IC card; - transmitting a second identity code (ID2) from the second to the first IC card; - applying, within each of the IC cards, a diversification algorithm (D1, D2) in order to determine a same secret number (NS); - computing a session key common to each of the IC cards using a session key computing algorithm (CC1, CC2).