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Forgeability of Wang-Zhu-Feng-Yau’s Attribute-Based Signature with Policy-and-Endorsement Mechanism

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Abstract

Recently, Wang et al. presented a new construction of attribute-based signature with policy-and-endorsement mechanism. The existential unforgeability of their scheme was claimed to be based on the strong Diffie-Hellman assumption in the random oracle model. Unfortunately, by carefully revisiting the design and security proof of Wang et al.’s scheme, we show that their scheme cannot provide unforgeability, namely, a forger, whose attributes do not satisfy a given signing predicate, can also generate valid signatures. We also point out the flaws in Wang et al.’s proof.

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Authors and Affiliations

  1. State Key Laboratory of Mathematical Engineering and Advanced Computing, Zhengzhou Information Science and Technology Institute, Zhengzhou, 450001, China

    Ai-Jun Ge & Chuan-Gui Ma (Member, CCF)

  2. State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing, 100093, China

    Ai-Jun Ge & Rui Zhang (Member, CCF)

  3. Fujian Provincial Key Laboratory of Network Security and Cryptology, School of Mathematics and Computer Science, Fujian Normal University, Fuzhou, 350117, China

    Xin-Yi Huang

  4. Institute of Software, Chinese Academy of Sciences, Beijing, 100080, China

    Cheng Chen

Authors
  1. Ai-Jun Ge
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  2. Xin-Yi Huang
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  3. Cheng Chen
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  4. Chuan-Gui Ma
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  5. Rui Zhang
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Corresponding author

Correspondence to Chuan-Gui Ma.

Additional information

This research was partially supported by the National High Technology Research and Development 863 Program of China under Grant No. 2011AA010803, the National Natural Science Foundation of China under Grant Nos. 61100225, 61202450, the funding of Science and Technology on Information Assurance Laboratory (KJ-13-02), and the Key Scientific and Technological Project of Henan Province of China under Grant No. 122102210126.

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Ge, AJ., Huang, XY., Chen, C. et al. Forgeability of Wang-Zhu-Feng-Yau’s Attribute-Based Signature with Policy-and-Endorsement Mechanism. J. Comput. Sci. Technol. 28, 743–748 (2013). https://doi.org/10.1007/s11390-013-1372-y

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  • DOI: https://doi.org/10.1007/s11390-013-1372-y

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