Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (12): 84-89.doi: 10.3969/j.issn.1000-565X.2010.12.016

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Hierarchical Identity-Based Signature Scheme with Short Public Parameters

Yang Yang1  Hu Yu-pu1  Zhang Le-you2  Liu Zhen-hua2   

  1. 1.School of Telecommunications Engineering,Xidian University,Xi＇an 710071,Shaanxi,China;2.School of Science,Xidian University,Xi＇an 710071,Shaanxi,China
  • Received:2010-03-24 Revised:2010-06-10 Online:2010-12-25 Published:2010-12-25
  • Contact: 杨呖（1984-），女，博士生，主要从事信息安全、密码学研究． E-mail:yang．yang．research@gmail．com
  • About author:杨呖（1984-），女，博士生，主要从事信息安全、密码学研究．
  • Supported by:

    国家自然科学基金资助项目（60970119 60803149 60833008 61072067）; 国家“973”计划项目（2007CB311201）; 广西信息与通讯技术重点实验室基金资助项目（20902）

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Abstract:

As the existing hierarchical identity-based signature schemes are not practicable in the real world due to the excessive length of public parameters,a description of hierarchical identity-based signature scheme is presented,and a security model is established.Then,a novel hierarchical identity-based signature scheme is proposed,with its security being proved based on the computational Diffie-Hellman assumption in the established security model.The results indicate that,as compared with the existing hierarchical identity-based signature schemes,the proposed scheme possesses shorter public parameters and requires less bilinear pairing operation for verification.

Key words: public key cryptography, hierarchical identity, signature, bilinear mapping, provable security, data security