| 摘要 |
The system comprises a center for management of right of access (GES), principal (PRI) and secondary (SEC) deciphering devices including entry interfaces (10) and modules for controlled access in connection with memory cards. Medium of communication (MCOM) links principal decoder to management center in case of a request for secondary right of access (DAS), for identification of principal user, an identification of secondary user and information regarding affiliation, and transfer of right of access to the secondary user card (CS). The procedure includes the identification of principal user card (CP), the request for secondary right of access (RQ), a verification and authorization of the request (RQ), a search for the identification by table (TAB) of secondary user and the address of secondary rights, an encipherment of secondary rights, a transmission within the broadcasting network, decipherment and recording of the secondary rights, decipherment and visualization of authorized program. |
