Road rescue privacy protection system and method based on block chain in fog computing environment

A privacy protection system and blockchain technology, applied in the field of data privacy protection of the Internet of Vehicles, can solve the problems of increasing bandwidth costs, prone to time delays, etc., to reduce communication costs, ensure confidentiality and integrity, and improve efficiency.
CN112261078AActive Publication Date: 2021-01-22SHANDONG NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG NORMAL UNIV
Publication Date
2021-01-22

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Abstract

The invention provides a blockchain-based road rescue privacy protection system and method in a fog computing environment, belongs to the technical field of Internet of Vehicles data privacy protection, and aims to generate system public parameters and calculate the pseudo identity of an OBU. In the method, a complete secret key of the OBU is calculated according to the system parameters and the pseudo identity, signcryption is conducted on vehicle information corresponding to the OBU within the validity period of the pseudo identity, the signcryption result is sent to the RSU to be subjectedto aggregation calculation and verification, and a ciphertext which is successfully verified is sent to the alliance chain; and a rescue corresponding platform nearest to the vehicle user is searchedaccording to the rescue request, then a search result and the ciphertext of the vehicle user on the alliance chain are sent to the TA for verification, and the verification result is verified and decrypted to a rescue response platform. According to the invention, the confidentiality and integrity of data are ensured, signed messages cannot be forged or modified by malicious vehicles, the real identity of a vehicle user is hidden and kept consistent, a trusted mechanism can track the real identity of the vehicle, and a secret key generation center has no complete private key of the vehicle user, so that the information security is ensured.
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Description

technical field

[0001] The invention relates to the technical field of Internet of Vehicles data privacy protection, in particular to a blockchain-based road rescue privacy protection system and method in a fog computing environment. Background technique

[0002] At present, with the rapid growth of the number of cars, many traffic accidents inevitably occur. Traffic accidents not only threaten personal and property safety, but also lead to traffic congestion, which causes a lot of waste of fuel and transportation resources. Road rescue mainly refers to car road emergency rescue, which provides services such as on-site minor repairs for owners of faulty cars. Therefore, a safe and efficient road rescue system is of great significance for improving traffic accident rescue services, ensuring the safety of life and property of people on board, and alleviating traffic congestion.

[0003] Vehicle ad hoc network (VANET) is considered as a promising technology to improve the oper...

Claims

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