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Chosen Ciphertext Attack on a New Class of Self-Synchronizing Stream Ciphers

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Progress in Cryptology - INDOCRYPT 2004 (INDOCRYPT 2004)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 3348))

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Abstract

At Indocrypt’2002, Arnault et al. proposed a new class of self-synchronizing stream ciphers combining LFSR and FCSR architectures. It was claimed to be resistant to known attacks. In this paper, we show that such a self-synchronizing stream cipher is extremely vulnerable to chosen ciphertext attack. We can restore the secret keys easily from one chosen ciphertext with little computation. For the parameters given in the original design, it takes less than one second to restore the secret keys on a Pentium 4 processor.

Supported by National Natural Science Foundation of China (Grant No. 60273027), National Key Foundation Research 973 project (Grant No. G1999035802) and National Science Fund for Distinguished Young Scholars (Grant No. 60025205).

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References

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Author information

Authors and Affiliations

  1. Institute for Infocomm Research, Singapore

    Bin Zhang, Hongjun Wu & Feng Bao

  2. State Key Laboratory of Information Security, Graduate School of the Chinese Academy of Sciences, Beijing, 100039, P.R. China

    Bin Zhang & Dengguo Feng

Authors
  1. Bin Zhang
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  2. Hongjun Wu
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  3. Dengguo Feng
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  4. Feng Bao
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Editor information

Editors and Affiliations

  1. INRIA Rocquencourt, France

    Anne Canteaut

  2. SETS, 21 Mangadu Swamy Street, Nungambakkam, 600 034, Chennai, India

    Kapaleeswaran Viswanathan

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© 2004 Springer-Verlag Berlin Heidelberg

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Zhang, B., Wu, H., Feng, D., Bao, F. (2004). Chosen Ciphertext Attack on a New Class of Self-Synchronizing Stream Ciphers. In: Canteaut, A., Viswanathan, K. (eds) Progress in Cryptology - INDOCRYPT 2004. INDOCRYPT 2004. Lecture Notes in Computer Science, vol 3348. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30556-9_7

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  • DOI: https://doi.org/10.1007/978-3-540-30556-9_7

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-24130-0

  • Online ISBN: 978-3-540-30556-9

  • eBook Packages: Computer ScienceComputer Science (R0)

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