METHOD FOR EVALUATING USER'S RIGHTS STORED IN A SECURITY MODULE

摘要

The method involves scanning a service information table (SI) by a control access Kernel (CAK), and extracting an identifier of a right associated to a service from a descriptor. An index (In) corresponding to the right is searched in advance in a right table (Td). The index is transmitted to a security module (SM) when searching operation provides a positive result. A control message (ECM) is decrypted by the module. The identifier in the message is extracted. Rights in the module are verified by initiating verification of the rights in the right table using the right designated by the index.