| 摘要 |
<p>The present invention relates to a contactless communication object (10) able to communicate with an NFC reader (2), said object (10) having several virtual containers (C1,C2,C3) having common memory structure with at least a same memory sector (120,220,320) being intended to be accessed by readers (2) associated to different services, each of such memory sector (120,220,320) having at least a key (K1,K2,K3) associated to the corresponding service. According to the invention, the object is able to calculate different possible test data (TDi, i=1 to 3) using keys (K1,K2,K3) associated to the memory sector indicated in memory sector information (MSI) for each of the virtual containers (C1,C2,C3), and to detect the matching of the initialization data (ID) received from the reader (2) with one of the locally calculated test data (TDi), the authentication module (13) then taking the key (Km) corresponding to the matching test data (TDm), if ever detected, to terminate authentication.</p> |
