A New Group Key Agreement Protocol with Anonymity

2013 ◽  
Vol 380-384 ◽  
pp. 2256-2261
Author(s):  
Gang Yao ◽  
Li Guo
Keyword(s):  
Privacy Protection ◽  
Key Agreement ◽  
Forward Secrecy ◽  
Session Key ◽  
Group Key ◽  
Group Key Agreement ◽  
Key Agreement Protocol ◽  
Perfect Forward Secrecy ◽  
Agreement Protocols ◽  
Group Key Agreement Protocol

Popularity of group-oriented applications motivates research on security protection for group communications. A number of group key agreement protocols have been proposed for this objective, but most current group key agreement protocols do not consider privacy protection. Group key agreement protocols for networks should also handle dynamic group membership events such as user join and leave events. The Join and Leave Protocols provide backward and forward secrecy respectively. In this paper, we proposed a new anonymous group key agreement protocol based on ID-based encryption cryptosystems. The proposed protocol not only benefits from the desirable features of ID-based cryptosystem, but also provides privacy protection for users. The proposed protocol achieves the following security attribute: anonymity, unlinkability, group key secrecy, group forward secrecy, group backward secrecy, perfect forward secrecy for the group session key and entity authentication.

scholarly journals Group Key Agreement Protocol Based on Privacy Protection and Attribute Authentication

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 87085-87096 ◽  
Author(s):  
Zhang Qikun ◽  
Li Yongjiao ◽  
Gan Yong ◽  
Zheng Chuanyang ◽  
Luo Xiangyang ◽  
...  
Keyword(s):  
Privacy Protection ◽  
Key Agreement ◽  
Group Key ◽  
Group Key Agreement ◽  
Key Agreement Protocol ◽  
Group Key Agreement Protocol

scholarly journals On the Security of Authenticated Group Key Agreement Protocols

2019 ◽  
Vol 20 (1) ◽  
pp. 93-99 ◽  
Author(s):  
Suman Bala ◽  
Gaurav Sharma ◽  
Hmani Bansal ◽  
Tarunpreet Bhatia
Keyword(s):  
Key Agreement ◽  
Secret Key ◽  
Session Key ◽  
Security Vulnerabilities ◽  
Group Key ◽  
Group Key Agreement ◽  
Key Leakage ◽  
Malicious Insiders ◽  
Agreement Protocols ◽  
Group Key Agreement Protocol

The group key agreement protocol enables to derive a shared session key for the remote members to communicate securely. Recently, several attempts are made to utilize group key agreement protocols for secure multicasting in Internet of Things. This paper contributes to identify the security vulnerabilities in the existing protocols, to avoid them in future constructions. The protocols presented by Gupta and Biswas have been found insecure to ephemeral secret key leakage (ESL) attack and also, malicious insiders can impersonate an honest participant. Additionally, the protocol presented by Tan is also ESL-insecure. We also present a fix to the Tan's protocol to make it secure.

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