Vehicular ad hoc network group awareness data report duplication eliminating method

Abstract

The invention discloses a vehicular ad hoc network group awareness data report duplication eliminating method. According to the method, through adoption of an ECC algorithm, secure and reliable task distribution is realized, a label part of a ciphertext is hidden in a communication process, and fog nodes detect awareness report uniqueness and does not detect specific content of reports, so the privacy protection in a data duplication eliminating process can be realized, and a data counterfeiting attack can be resisted. According to the method, in order to record vehicle contributions in a report duplication eliminating process, signature aggregation is supported through adoption of an improved multi-signature scheme based on identities. According to the scheme, an efficient and secure aggregation confirmation function can be realized, and moreover, vehicles making contributions to the group awareness reports also can be recorded.

Description

technical field [0001] The invention relates to a safe and efficient deduplication technology for group sensing data reports, in particular to a deduplication method for group sensing data reports in a vehicle-mounted ad hoc network. Background technique [0002] With the development of "intelligent transportation system", the current cars are equipped with on-board sensors and wireless communication devices (such as cameras, GPS, driving recorders, lateral acceleration sensors and on-board units, etc.), which not only provide basic functions, but also provide The realization of vehicle group perception system provides convenience. [0003] Through the use of on-board units and on-board sensing devices, vehicles can not only periodically upload vehicle driving conditions (such as location information, real-time vehicle speed, driving video, etc.), but also upload traffic conditions, road conditions and weather conditions to realize transportation planning and route planning ...

AI Technical Summary

Problems solved by technology

[0006] However, the security and privacy issues of public devices are a serious challenge: on-board sensors collect real-time data from the surrounding environment, which may contain some sensitive information

[0010] In the prior art, the message lock encryption mechanism (MLE) is generally used to resist data forgery attacks, that is, the file fingerprint is determined by the data itself and the system parameters provided by the server, and the adversary cannot forge the system parameters, and thus cannot forge the owner of the file

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