| 摘要 |
Embodiments of the invention disclose a method and a system for protecting contents of a broadband video/audio broadcast, which solves the problem of poor security concerning the video/audio broadcast on a broadband network of (he prior art. In the method a multicast entitlement control list is kept in a broadcast access device and when a subscriber requests to receive a channel, the broadcast access device verifies, according to the multicast entitlement control list, whether the subscriber is entitled to receive the channel, adds the subscriber into a corresponding multicast group only when the subscriber is entitled, and transmits the contents of the multicast group only to the members of the multicast group. Embodiments of the invention also disclose a broadband access device for protecting contents of a broadband video/audio broadcast. |
