期刊名称：International Journal of Distributed Sensor Networks
印刷版ISSN：1550-1329
电子版ISSN：1550-1477
出版年度：2013
卷号：2013
DOI：10.1155/2013/615906
出版社：Hindawi Publishing Corporation
摘要：Security and privacy have been important issues in VANETs. Anonymity is an effective way to achieve privacy protection, and it sometimes requires to be disclosed for determining traffic liability. In most pseudonym schemes, an authority is aware of a vehicle's secret, and its compromise will result in the leakage of a large amount of privacy information. So, we propose a distributed traceable pseudonym management scheme in VANETs. In the scheme, a blind signature method is adopted to achieve strict separation of issuance and tracking. The distributed tracking protocol is proposed to enhance the robustness for tracking, which is based on the improved scheme for shared generation of RSA keys. An efficient pseudonymous authentication mechanism is proposed to reduce the communication overhead. Compared with other related proposals, our scheme is unforgeability, especially against authority forge attacks, and has better robustness. Moreover, the performance analysis shows that it is efficient in VANETs.
