通信学报 ›› 2016, Vol. 37 ›› Issue (7): 161-171.doi: 10.11959/j.issn.1000-436x.2016145

• 学术通信 • 上一篇    下一篇

无证书的层次认证密钥协商协议

苏航,刘建伟,陶芮   

  1. 北京航空航天大学电子信息工程学院,北京 100191
  • 出版日期:2016-07-25 发布日期:2016-07-28
  • 基金资助:
    国家重点基础研究发展计划(“973”计划)基金资助项目;国家自然科学基金资助项目;中央高校基本科研业务费专项基金资助项目

Hierarchical certificateless authenticated key agreement protocol

Hang SU,Jian-wei LIU,Rui TAO   

  1. School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
  • Online:2016-07-25 Published:2016-07-28
  • Supported by:
    The National Basic Research Program of China (973 Program);The National Natural Sci-ence Foundation of China;The Fundamental Research Funds for the Central Universities

摘要:

提出了一种无证书的层次认证密钥协商协议,协议的安全性基于计算性 Diffie-Hellman 困难假设,并在eCK(extended Canetti–Krawczyk)模型下证明了该协议的安全性。该协议中,根PKG为多层的域PKG验证身份并生成部分私钥,域 PKG 为用户验证身份并生成部分私钥,私钥则由用户选定的秘密值和部分私钥共同生成。与已有协议相比,协议不含双线性映射配对运算,且具有较高的效率。

关键词: 无证书, 层次认证密钥协商协议, 计算性Diffie-Hellman困难假设, eCK模型

Abstract:

A hierarchical certificateless authenticated key agreement protocol was proposed, and the proposed protocol was proved secure in extended Canetti-Krawczyk (eCK) model, the security of the protocol was based on the computa-tional Diffie-Hellman assumption. In the protocol, a root PKG authenticates the identity and generates a partial private key for lower-level PKG which authenticate the identity and generate a partial private key for users, private key generated by partial private key and user selected secret value. Comparing with the existing protocols, the protocol is efficient without bilinear pairings computation.

Key words: certificateless, hierarchical authenticated key agreement protocol, computational Diffie-Hellman assumption, eCK model

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