期刊
IEEE INTERNET OF THINGS JOURNAL
卷 8, 期 1, 页码 647-656出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JIOT.2020.3037252
关键词
Conditional anonymity; conditional privacy; identity-based cryptosystem; ring signcryption; vehicular ad hoc networks (VANETs)
资金
- National Natural Science Foundation of China [61672106]
- Natural Science Foundation of Beijing, China [L192023]
Vehicular ad hoc networks aim to improve transportation systems by leveraging information technology, but face serious privacy concerns due to potential leakage. A novel conditional privacy protection scheme based on ring signcryption was designed to address these issues, showing advantages over existing solutions through security analysis and experiments.
Vehicular ad hoc networks (VANETs) leverage information and communications technology to make transportation systems intelligent, safe, and efficient, hence improving people's driving experience. Unfortunately, due to the openness of wireless channels and vehicular mobility, privacy leakage in VANETs poses serious privacy concerns. Once a user's identity is leaked, it will cause serious threats to his/her property and personal safety as a malicious attacker, such as a stalker could utilize the targeted identity to track particular driver and/or launch malicious attack. To address such a privacy problem, by observing the nice properties of ring signature like anonymity, spontaneity, flexibility, and membership equality, we design a novel conditional privacy protection scheme based on ring signcryption, which utilizes the salient features of identity-based cryptosystems and ring signature to achieve conditional privacy. Through security analysis and experiments, we have demonstrated the advantage of our scheme over most existing solutions.
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