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CCA-secure unidirectional proxy re-encryption in the adaptive corruption model without random oracles

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Abstract

Up to now, it is still an open question of how to construct a chosen-ciphertext secure unidirectional proxy re-encryption scheme in the adaptive corruption model. To address this problem, we propose a new unidirectional proxy re-encryption scheme, and prove its chosen-ciphertext security in the adaptive corruption model without random oracles. Compared with the best known unidirectional proxy re-encryption scheme proposed by Libert and Vergnaud in PKC’08, our scheme enjoys the advantages of both higher efficiency and stronger security.

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Authors and Affiliations

  1. Department of Computer Science, Jinan University, Guangzhou, 510632, China

    Jian Weng

  2. School of Information Systems, Singapore Management University, Singapore, 178902, Singapore

    Jian Weng & Robert Deng

  3. College of Information Engineering, Shenzhen University, Shenzhen, 518060, China

    MinRong Chen

  4. Institute for Infocomm Research (I2R), Singapore, 119613, Singapore

    YanJiang Yang & Feng Bao

  5. Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    KeFei Chen

Authors
  1. Jian Weng
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  2. MinRong Chen
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  3. YanJiang Yang
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  4. Robert Deng
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  5. KeFei Chen
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  6. Feng Bao
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Correspondence to MinRong Chen.

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Weng, J., Chen, M., Yang, Y. et al. CCA-secure unidirectional proxy re-encryption in the adaptive corruption model without random oracles. Sci. China Inf. Sci. 53, 593–606 (2010). https://doi.org/10.1007/s11432-010-0047-3

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  • DOI: https://doi.org/10.1007/s11432-010-0047-3

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