Sciweavers

Share
JSAC
2011

A Distributed Key Management Framework with Cooperative Message Authentication in VANETs

7 years 10 months ago
A Distributed Key Management Framework with Cooperative Message Authentication in VANETs
Abstract—In this paper, we propose a distributed key management framework based on group signature to provision privacy in vehicular ad hoc networks (VANETs). Distributed key management is expected to facilitate the revocation of malicious vehicles, maintenance of the system, and heterogeneous security policies, compared with the centralized key management assumed by the existing group signature schemes. In our framework, each road side unit (RSU) acts as the key distributor for the group, where a new issue incurred is that the semi-trust RSUs may be compromised. Thus, we develop security protocols for the scheme which are able to detect compromised RSUs and their colluding malicious vehicles. Moreover, we address the issue of large computation overhead due to the group signature implementation. A practical cooperative message authentication protocol is thus proposed to alleviate the verification burden, where each vehicle just needs to verify a small amount of messages. Details of ...
Yong Hao, Yu Cheng, Chi Zhou, Wei Song
Added 14 May 2011
Updated 14 May 2011
Type Journal
Year 2011
Where JSAC
Authors Yong Hao, Yu Cheng, Chi Zhou, Wei Song
Comments (0)
books