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Efficient CCA-Secure CDH Based KEM Balanced between Ciphertext and Key

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Information Security and Privacy (ACISP 2011)

Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 6812))

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Abstract

In this paper we construct an efficient CCA-secure key encapsulation scheme in the standard model. The new scheme is based on the computational Diffie-Hellman assumption and the twinning technique, which has been widely discussed in recent years. Compared with previous schemes of the same kind, the new scheme is more generic, and offers a simple approach for reconciling ciphertext length and key size by altering a parameter. Choosing a reasonable value for the parameter, a balance between the ciphertext length and key size could be achieved.

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Author information

Authors and Affiliations

  1. State Key Laboratory of Information Security, Graduate University of Chinese Academy of Sciences, No.19A Yuquan Road, 100049, Beijing, China

    Yamin Liu, Bao Li, Xianhui Lu & Dingding Jia

Authors
  1. Yamin Liu
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  2. Bao Li
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  3. Xianhui Lu
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  4. Dingding Jia
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Editor information

Editors and Affiliations

  1. Department of Computer Science and Software Engineering, The University of Melbourne, 3010, Victoria, Australia

    Udaya Parampalli

  2. Qualcomm Incorporated, Suite 301, Level 3, 77 King Street, NSW 2000, Sydney, Australia

    Philip Hawkes

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© 2011 Springer-Verlag Berlin Heidelberg

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Liu, Y., Li, B., Lu, X., Jia, D. (2011). Efficient CCA-Secure CDH Based KEM Balanced between Ciphertext and Key. In: Parampalli, U., Hawkes, P. (eds) Information Security and Privacy. ACISP 2011. Lecture Notes in Computer Science, vol 6812. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-22497-3_20

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  • DOI: https://doi.org/10.1007/978-3-642-22497-3_20

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-22496-6

  • Online ISBN: 978-3-642-22497-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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