Browse > Article
http://dx.doi.org/10.13089/JKIISC.2009.19.6.161

Technique and Implementation of Secure Downloadable Conditional Access System  

Kang, Seong-Ku (Chung-Nam National University)
Park, Jong-Youl (Electronics and Telecommunications Research Institute)
Paik, Eui-Hyun (Electronics and Telecommunications Research Institute)
Park, Choon-Sik (Seoul Woman University)
Ryou, Jae-Cheol (Chung-Nam National University)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.19, no.6, 2009 , pp. 161-174 More about this Journal
Abstract
IPTV provides their services only for their subscribers who have a eligibility to watch it by using Conditional Access System(CAS). CAS has been servicing their contents for subscribers by using set-top box or cable card so far, but these days, to solve the compatibility between kinds of devices, linkage with other services as DRM and confirming stability, the research of Downloadable CAS(DCAS) is being advanced steadily. On this paper, we analyse the vulnerability of DCAS based on the OpenCable and make up for the vulnerability in DCAS, then proposes to use secure DCAS system for IPTV. Also we show the result of the research and analyse the satisfaction of requirements.
Keywords
IPTV Security; CAS; DCAS; Network Security;
Citations & Related Records
연도 인용수 순위
  • Reference
1 권호영, IPTV의 동향과 전략, 커뮤니케이션북스, 2004년 12월
2 OpenCable, "OC-SP-DCAS-CP-D01-060206: OpenCable DCAS Content Protection Specification," OpenCable Specification, Feb. 2006
3 CableLabs, "The OpenCable Application Platform," http://www.opencable.com/ocap/
4 ATIS, "IIF Default Scrambling Algorithm(IDSA) IPTV Interoperability Specification," ATIS-0800006, Mar. 2007
5 ETSI Technical Report 289, "Support for use of scrambling and Conditional Access within digital broadcasting system," Oct. 1996
6 ATSC, "Advanced Common Application Platform," http://www.atsc.org/standards/a101.html
7 OpenCable, "OC-SP-CDL2.0-l06-080118: Common Download 2.0," OpenCable Specification, Jan. 2008
8 OpenCable, "OC-TR-DCAS-D01-060206: DCAS System Overview Technical Report," OpenCable Technical Report, Feb. 2006
9 서창호, 박종열, 문진영, 백의현, "IPTV 접근제어 표준 및 서비스 기술," TTA Journal, 110호, 2007년 4월
10 N. Borisov, I. Goldverg, and D. Wagner, "Intercepting Mobile Communications: The Insecurity of 802.11," Proceeding of the 7th Annual International Conference on Mobile Computing and Networking, pp. 180-189, July 2001   DOI
11 ITU-T, "Functional Requirements and Architecture for IPTV Security Aspects," X.iptvsec-1, May 2008
12 ETSI TS 103 197 v1.4.1, "Digital Video Broadcasting(DVB) Head-end Implementation of DVB," Simulcrypt, Dec. 2004
13 전한얼, 이윤경, 최진용, 허민성, 이현석, "방송통신기술동향연구," 방송위원회 연구센터, 2007년 1월
14 OpenCable, "OC-SP-HOST2.5-CFR-D01-060206: OpenCable DCAS Host Device 2.5 core Functional Requirements," OpenCable Specification, Feb. 2006