计算机应用 ›› 2012, Vol. 32 ›› Issue (01): 95-98.DOI: 10.3724/SP.J.1087.2012.00095

• 信息安全 • 上一篇    下一篇

高效的强安全的基于身份认证密钥协商协议

舒剑1,2   

  1. 1. 电子科技大学 计算机科学与工程学院,成都 611731
    2. 江西财经大学 电子商务系,南昌 330013
  • 收稿日期:2011-07-11 修回日期:2011-09-11 发布日期:2012-02-06 出版日期:2012-01-01
  • 通讯作者: 舒剑
  • 作者简介:舒剑(1972-),男,江西南昌人,副教授,博士,主要研究方向:密码学、信息安全。
  • 基金资助:

    国家863计划项目(2009AA012415)

Efficient strongly-secure identity-based authenticated key agreement protocol

SHU Jian1,2   

  1. 1. Department of Electronic Commercial, Jiangxi University of Finance and Economics, Nanchang Jiangxi 330013, China
    2. School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu Sichuan 611731, China
  • Received:2011-07-11 Revised:2011-09-11 Online:2012-02-06 Published:2012-01-01
  • Contact: SHU Jian

摘要: 现有的基于身份(ID)认证协议大多在CK模型中被证明是安全的,而CK模型比扩展的CK模型(eCK模型)更弱。基于NAXOS方法,利用双线性对设计了一种新协议,并基于随机预言假设和GBDH假设,在eCK模型中证明了协议的安全性。与其他的基于身份认证协议相比,新协议的计算复杂度和通信复杂度较低;满足主密钥前向安全性和完美前向安全性,并抗密钥泄漏伪装。

关键词: 认证, 密钥协商, 基于身份, 双线性对, 随机预言, GBDH假设

Abstract: Most of the existing Identity-based (ID) authenticated protocols are proven secure in the Canetti-Krawczyk (CK) model which is weaker than the extended Canetti-Krawczyk (eCK) model. Based on NAXOS trick, a new scheme using bilinear pairing was proposed. The security of the scheme was proven in the eCK model under the random oracle assumption and the Gap Bilinear Diffie-Hellman (GBDH) assumption. The proposed protocol was efficient in computational cost and communication round when compared with other solutions. The new protocol also satisfied master key forward security, perfect forward security and anti-key-leak disguise.

Key words: authentication, key agreement, Identity-based (ID), bilinear pairing, random oracle, Gap Bilinear Diffie-Hellman (GBDH) assumption

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