Method for efficient CA software provisioning in downloadable conditional access system

Author

Kim, SoonChoul ; Jeong, Youngho ; Kwon, Ohhyung ; Chung, Jin-Wook

Author_Institution

Electron. & Telecommun. Res. Inst., Daejeon, South Korea

fYear

2011

fDate

14-17 June 2011

Firstpage

335

Lastpage

338

Abstract

A downloadable conditional access system (DCAS) focuses on transmitting conditional access (CA) software into a set-top-box (STB) securely via a bi-directional communication channel. This paper presents the method to provision CA software onto STBs efficiently for the purpose. In order to achieve this goal, we defined the DCAS policy on CA software´s configuration and downloading method, and designed DCAS headend servers which execute authentication and downloading according to the DCAS policy. Especially, a policy server (DPS) which plays an important role of generating and distributing the policy, is presented in detail. Also we implemented the DCAS system and showed the stability and effectiveness by verifying the implemented results in a testbed.

Keywords

computer communications software; message authentication; protocols; bi-directional communication channel; conditional access software provisioning; downloadable conditional access system; policy server; set-top-box; Authentication; Cryptography; Protocols; Servers; Software; Streaming media;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (ISCE), 2011 IEEE 15th International Symposium on

Conference_Location

Singapore

ISSN

0747-668X

Print_ISBN

978-1-61284-843-3

Type

conf

DOI

10.1109/ISCE.2011.5973844

Filename

5973844