Computer Engineering and Applications ›› 2017, Vol. 53 ›› Issue (5): 111-115.DOI: 10.3778/j.issn.1002-8331.1508-0100

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Novel one-round certificateless group authenticated key agreement protocol

DENG Fei1, ZHU Ying2   

  1. 1.Department of Information and Art Design, Huaihua Vocational and Technical College, Huaihua, Hunan 418000, China
    2.Institute of Network Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2017-03-01 Published:2017-03-03


邓  飞1,朱  莹2   

  1. 1.怀化职业技术学院 信息与艺术设计系,湖南 怀化 418000
    2.北京邮电大学 网络技术研究院,北京 100876

Abstract: Group authenticated key agreement protocol can help participants establish a session key in an open communication channel. In this paper, it proposes an effective PKC-based certificateless group authenticated key agreement protocol, the certificateless mechanism of the protocol simplifies the complex certificate management problem and key escrow problem in ID-based protocols. The security of the scheme is proved and its computational cost is discussed. The result shows that the new protocol is secure and effective.

Key words: group key agreement, certificateless protocol, provable security, key escrow, Public Key Infrastructure(PKI)

摘要: 群认证密钥协商协议可以使多个参与者在公开信道中建立会话密钥。提出了一种高效的基于PKC的无证书群认证密钥协商协议,由于采用了无证书机制,简化了基于证书的协议中复杂的证书管理问题,同时也解决了基于身份的协议中密钥托管问题。还对新协议进行了严格的形式化证明和计算量的横向比较,结果显示,新协议是安全且高效的。

关键词: 群密钥协商, 无证书协议, 可证明安全, 密钥托管, 公钥基础设施