International Journal of Information Security

, Volume 15, Issue 1, pp 35–50 | Cite as

Practical chosen-ciphertext secure Hierarchical Identity-Based Broadcast Encryption

  • Weiran Liu
  • Jianwei Liu
  • Qianhong Wu
  • Bo Qin
  • Yan Li
Special Issue Paper

Abstract

We focus on practical Hierarchical Identity-Based Broadcast Encryption (HIBBE) with semantic security against adaptively chosen-ciphertext attacks (CCA2) in the standard model. We achieve this goal in two steps. First, we propose a new HIBBE scheme that is secure against chosen-plaintext attacks (CPA). Compared with the existing HIBBE scheme that is built from composite-order bilinear groups, our construction is based on prime-order bilinear groups. The much better efficiency of group operations in prime-order bilinear groups makes our proposed HIBBE scheme more practical. Then, we convert it into a CCA2-secure scheme at the cost of a one-time signature. Instead of extending one user hierarchy in the Canetti–Halevi–Katz approach from CPA-secure (\(l+1\))-Hierarchical Identity-Based Encryption [(\(l+1\))-HIBE] to CCA2-secure \(l\)-HIBE, our construction merely adds one on-the-fly dummy user in the basic scheme. We formally prove the security of these two schemes in the standard model. Comprehensive theoretical analyses and experimental results demonstrate that the proposed HIBBE schemes achieve desirable performance.

Keywords

Identity-based encryption Broadcast encryption Hierarchical Identity-Based Broadcast Encryption Access control Provable security 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Weiran Liu
    • 1
    • 2
  • Jianwei Liu
    • 1
    • 5
  • Qianhong Wu
    • 1
    • 3
  • Bo Qin
    • 4
  • Yan Li
    • 5
  1. 1.School of Electronic and Information EngineeringBeihang UniversityBeijingChina
  2. 2.The State Key Laboratory of Integrated Services NetworksXidian UniversityXi’anChina
  3. 3.The State Key Laboratory of Information Security, Institute of Information EngineeringChinese Academy of SciencesBeijingChina
  4. 4.The Key Laboratory of Data Engineering and Knowledge Engineering (Renmin University of China) Ministry of Education, School of InformationRenmin University of ChinaBeijingChina
  5. 5.Aerospace Hengxing Science and Technology co. LTDBeijingChina

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