Cryptanalysis of Secure Key Exchange Protocol between STB and Smart Card in IPTV Broadcasting

Authors:
Song-Hee Lee;Nam-Sup Park;Soo-Kyun Kim;Jin-Young Choi
Affiliations:
Dept. of Computer Science and Engineering, Korea University, Korea;LG Electronics Inc., Korea;Dept. of Game Engineering, PaiChai University, Korea;Dept. of Computer Science and Engineering, Korea University, Korea
Venue:
ISA '09 Proceedings of the 3rd International Conference and Workshops on Advances in Information Security and Assurance
Year:
2009

Citing 6
Cited 1

Scrambling and Key Distribution Scheme for Digital Television

ICON '01 Proceedings of the 9th IEEE International Conference on Networks
A new secure key exchange protocol between STB and smart card in DTV broadcasting

WISI'06 Proceedings of the 2006 international conference on Intelligence and Security Informatics
Efficient key distribution schemes for secure media delivery in pay-TV systems

IEEE Transactions on Multimedia
On key distribution management for conditional access system on pay-TV system

IEEE Transactions on Consumer Electronics
Key distribution based on hierarchical access control for conditional access system in DTV broadcast

IEEE Transactions on Consumer Electronics
Secure communication between set-top box and smart card in DTV broadcasting

IEEE Transactions on Consumer Electronics

Secure communication in IPTV broadcasting

The Journal of Supercomputing

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Abstract

In 2006, Yoon et al. [1] proposed a new secure key exchange protocol based on a one-way hash function and Diffie-Hellman key exchange algorithm for secure communication between STB and Smart Card in IPTV Broadcasting. In this paper, we show that Yoon et al.'s protocol is vulnerable to impersonation attack and can not achieve mutual authentication. Further, we recommend some modifications to the protocol to correct these security problems.