Blockchain-based asymmetric group key agreement protocol for internet of vehicles

【Author】 Zhang, Qikun; Li, Yongjiao; Wang, Ruifang; Li, Jianyong; Gan, Yong; Zhang, Yanhua; Yu, Xiao

【Source】COMPUTERS & ELECTRICAL ENGINEERING

【影响因子】4.152

【Abstract】Data sharing and group communication are the main applications for Internet of Vehicles (IoV). IoV has some obvious characteristics, such as terminals resources are limited, sensitive information is easy to leak and the whole network is vulnerable to some attacks. Therefore, in the process of terminal communication for IoV, it is urgent to construct an efficient group key to encrypt the communication contents to protect the security of communication contents and user's privacy. In this work, we propose a blockchain-based asymmetric group key agreement protocol for IoV (B-AGKA), in which blockchain anonymous authentication technology is adopted to achieve user's privacy protection. And in this scheme, the calculation is distributed to each node in a balanced manner, reducing the calculation and communication overhead; for traceability and accountability, the blockchain logging techniques are adopted. In the whole process, we show that the proposed protocol is proven secure under the hardness assumption of decision bilinear Diffie-Hellman (DBDH) problem. The performance analysis shows that the proposed scheme is more efficient than existing works. (C) 2020 Elsevier Ltd. All rights reserved.

【Keywords】Group key agreement; Blockchain; Anonymous authentication; Information exchange

【发表时间】2020 SEP

【收录时间】2022-01-02

【文献类型】

【主题类别】

--