| 摘要 |
The aim of the present invention is to provide a method for receiving specific services by a user (A) from a broadcaster to which said user is not authorized. Said aim is achieved, whereby an access control method is provided for a broadcast from a broadcaster (B) of specific services, which are encrypted by control words (CW); the access rights (DB) to said services are managed by an access control centre (CAB); said rights (DB) comprise a transmission key (TB) which permits said control words (CW) to be decrypted; said broadcast is received by a mobile apparatus (A) which is connected to a security unit (SM) comprising a unique identification number (UA) and a security key (KA) for the secured transmission of information and whereby said apparatus (A) is connected to a telephone carrier (B) and initially registered at an other access control centre (CAA) for receiving specific services. |
