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Practical identity-based encryption in multiple private key generator (PKG) environments

Authors

  • Shengbao Wang,

    Corresponding author
    1. Institute of Information Science and Engineering, Hangzhou Normal University, Hangzhou, China
    2. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts Telecommunications, Beijing, China
    • Correspondence: Shengbao Wang, Institute of Information Science and Engineering, Hangzhou Normal University, Hangzhou, China.

      E-mail: shengbaowang@gmail.com

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  • Zhenfu Cao,

    1. Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
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  • Qi Xie,

    1. Institute of Information Science and Engineering, Hangzhou Normal University, Hangzhou, China
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  • Wenhao Liu

    1. Institute of Information Science and Engineering, Hangzhou Normal University, Hangzhou, China
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ABSTRACT

In this paper, we present a new identity-based encryption (IBE) scheme using bilinear pairings. Compared with the famous IBE scheme of Boneh and Franklin, ours is more practical in the multiple private key generator (multiple-PKG) environment. We prove that our scheme meets chosen ciphertext security in the random oracle model, assuming the intractability of the standard bilinear Diffie–Hellman problem. Copyright © 2013 John Wiley & Sons, Ltd.

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