Method and apparatus for mutual authentication in downloadable conditional access system
US8621218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2008 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Mar 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a mutual authentication method and apparatus in a CAS including a headend system and DCAS host. In particular, example embodiments relate to a mutual authentication method and apparatus in DCAS, wherein the mutual authentication is performed between an authentication server of the headend system and an SM of a DCAS host, and then CAS software is downloaded to the SM. According to the example embodiments, there is provided a mutual authentication protocol between the authentication server of the headend and the SM of the DCAS host in a cable network, and also provided a mutual authentication method and apparatus in the DCAS where a substantial authentication based on a hardware, such as a smart card or a cable card, is not needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.