Downloadable conditional access system and method of session control for secured 2-way communication between authentication server and host device in downloadable conditional access system
US8166298B2 · kind B2 · utility
2Cited by
5References
25Claims
0Family size
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Key dates
| Filing date | Sep 3, 2009 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Oct 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/63775
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a downloadable conditional access system (DCAS) including a key request unit to transmit a key request message to an authentication server, an authentication request unit to request authentication from the authentication server based on a key response message received from the authentication server in response to the key request message, and a session establishment unit to establish a session with the authentication server, based on an authentication response message received in response to the authentication request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.