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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.

Active Publication Date: 2021-01-22
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cloud computing technology still has many problems, such as transmitting a large amount of real-time data to a centralized cloud server, which is prone to time delay and increases bandwidth costs

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Such as figure 1 As shown, Embodiment 1 of the present invention provides a blockchain-based road rescue privacy protection system in a fog computing environment, the system includes:

[0065] The trusted organization TA is used to generate the master key and traceability key of the vehicle self-organizing network VANET and publish system public parameters, calculate the false identity of the vehicle-mounted unit OBU, verify and decrypt the ciphertext, and send the decrypted plaintext information to Rescue Response Platform.

[0066] The on-board unit OBU is used to calculate the complete key of the OBU according to the system parameters and the pseudo-identity, and sign-encrypt the vehicle information corresponding to the OBU within the validity period of the pseudo-identity, and send the ciphertext after sign-encryption to the roadside basic unit RSU.

[0067] The roadside basic unit RSU is used as a fog server to receive the ciphertext signatures of multiple vehicle...

Embodiment 2

[0112] Such as figure 2 As shown, this embodiment 2 provides a blockchain-based road rescue privacy protection system in a fog computing environment, including a trusted organization TA, a vehicle user, a road unit RSU as a fog server, an alliance blockchain, and a road rescue system. The five entities of the company.

[0113] Trusted agency TA: Assuming that the trusted agency is always trusted, it has strong computing power and huge storage space in the entire network. It is mainly used to generate system parameters, master key, traceability key, etc. It is mainly responsible for receiving the ciphertext from the search smart contract, decrypting and verifying the ciphertext, and sending it to the corresponding road rescue company for timely response to emergencies. If the information uploaded by the vehicle user leads to an accident or dispute, TA can trace the pseudo-identity of the vehicle user to find the real identity.

[0114] Vehicle user: The vehicle user uses th...

Embodiment 3

[0135] Such as Figure 2 to Figure 4 As shown, Embodiment 3 of the present invention provides a privacy protection method of a blockchain-based road rescue privacy protection system in a fog computing environment, wherein the system includes a trusted institution, a vehicle user, a road unit as a fog server, Consortium blockchain, road rescue company five entities. First divide each area into corresponding road units, and each road unit is a fog node. The i-th vehicle user wants to upload the relevant information of each part of the vehicle, and first generates the ciphertext from the encrypted data and uploads it to the unique road unit RSU in the area j , road unit RSU j Collect the ciphertexts of the relevant data from n vehicles to be rescued in the area for aggregate verification. Afterwards, the road unit connects the verified ciphertext to the alliance chain. If the aggregate verification fails, a check for invalid signature operation is performed. After the vehicl...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L9/06H04L9/32H04L29/06
CPCH04L9/3247H04L9/0643H04L63/0442H04L63/0421H04L67/12H04L2209/84H04L2209/42H04L2209/72H04L9/50
Inventor 吴磊王威
Owner SHANDONG NORMAL UNIV
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