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A Hierarchical Key Distribution Scheme for Conditional Access System in DTV Broadcasting

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Computational Intelligence and Security (CIS 2006)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 4456))

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Abstract

A variety of subscriptions in Conditional Access System (CAS) of DTV broadcasting network bring complexity to the key distribution scheme. In this paper, an innovation of hierarchical key distribution scheme for CAS in DTV broadcasting is proposed to reduce the computation of encryption and the number of messages for key refreshment. Compared with the conventional key distribution schemes, no encrypted message is distributed for key refreshment when a subscriber leaves. Further more, our hierarchical tree of key can provide a lot more dynamic management, from which broadcasters can improve efficiency in managing program channels.

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Author information

Authors and Affiliations

  1. Department of Information Science & Electronic Engineering, Yuquan Campus, Zhejiang University, Hangzhou 310027, China

    Mengyao Zhu, Ming Zhang, Xiaoling Chen, Ding Zhang & Zhijie Huang

Authors
  1. Mengyao Zhu
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  2. Ming Zhang
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  3. Xiaoling Chen
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  4. Ding Zhang
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  5. Zhijie Huang
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Editor information

Editors and Affiliations

  1. School of Computer Science and Technology , Xidian University, 710071, Xi’an, China

    Yuping Wang

  2. Department of Computer Science , Hong Kong Baptist University, Hong Kong, China

    Yiu-ming Cheung

  3. Faculty of Applied Mathematics , Guangdong University of Technology, 5100006, Guangzhou, China

    Hailin Liu

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© 2007 Springer-Verlag Berlin Heidelberg

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Zhu, M., Zhang, M., Chen, X., Zhang, D., Huang, Z. (2007). A Hierarchical Key Distribution Scheme for Conditional Access System in DTV Broadcasting. In: Wang, Y., Cheung, Ym., Liu, H. (eds) Computational Intelligence and Security. CIS 2006. Lecture Notes in Computer Science(), vol 4456. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74377-4_88

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  • DOI: https://doi.org/10.1007/978-3-540-74377-4_88

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-74376-7

  • Online ISBN: 978-3-540-74377-4

  • eBook Packages: Computer ScienceComputer Science (R0)

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