期刊
INTERNATIONAL JOURNAL OF INFORMATION SECURITY
卷 21, 期 5, 页码 1151-1162出版社
SPRINGER
DOI: 10.1007/s10207-022-00604-8
关键词
Anonymity; Cryptography; Electronic toll collection; Privacy; Security; Unlinkability
类别
资金
- Spanish Ministry of Science, Innovation and Universities [MTM2017-83271-R]
In this paper, a privacy-preserving ETC system is proposed to protect the privacy of drivers while allowing them to pay toll fees. The system ensures anonymity and unlinkability of all interactions between the vehicles and the system. The security of the proposal has been analyzed and its feasibility has been demonstrated through prototype implementation.
Electronic toll collection (ETC) systems make it easier for drivers to pay the fee for driving on toll roads. Nevertheless, digitalization of any process enables the service provider to collect digital records containing an accurate description of all the transactions carried out by users. This is the case for ETC systems. Moreover, records about road usage contain data about people's driving habits, from which highly sensitive personal information can be inferred. Hence, these systems should be designed in such a way that the privacy of drivers is preserved. In this paper we present an ETC system which guarantees that drivers pay the amount corresponding to their journeys while preserving their privacy in the sense that all the interactions of a car with the system are anonymous and unlinkable. To the best of our knowledge, this is the first ETC proposal in which the system server is unable to link the entrance and exit points of a trip. The security of the proposal has been analyzed, while its performance has been tested from a prototype implementation which proves its feasibility.
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