新的单轮无证书群认证密钥协商协议  

Novel one- round certificateless group authenticated key agreement protocol

作　　者：邓飞[1] 朱莹[2] DENG Fei;ZHU Ying(Department of Information and Art Design, Huaihua Vocational and Technical College, Huaihua, Hunan 418000, China;Institute of Network Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China)

机构地区：[1]怀化职业技术学院信息与艺术设计系 [2]北京邮电大学网络技术研究院

出　　处：《计算机工程与应用》2017年第5期111-115,共5页Computer Engineering and Applications

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。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.

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 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]