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Group Key Distribution Scheme Based on Blockchain and Quantum Keys for VANET
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Teng Cheng1, Qiang Liu1, Qin Shi1, Chuansu Wang2, Xing Zhang2
Automobile Technology | 2023, (10) : 1 - 8
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Automobile Technology | 2023, (10): 1-8
• Special Topic on Quantum Encrypted Communication Technologies for Internet of Vehicle •
Group Key Distribution Scheme Based on Blockchain and Quantum Keys for VANET
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Teng Cheng1, Qiang Liu1, Qin Shi1, Chuansu Wang2, Xing Zhang2
Affiliations
  • 1 Key Laboratory for Automated Vehicle Safety Technology of Anhui Province, Engineering Research Center for Intelligent Transportation and Cooperative Vehicle-Infrastructure of Anhui Province, Hefei University of Technology, Hefei 230009
  • 2 Chery Automobile Co., Ltd., Wuhu 241000
Published: 2023-10-24 doi: 10.19620/j.cnki.1000-3703.20230691
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In order to improve the communication efficiency and security of Vehicular Ad-hoc NETwork (VANET), this paper proposed an anonymous identity authentication and group key distribution scheme based on quantum key and blockchain. Anonymous credentials for vehicles were generated by a combination of random numbers on the vehicle side and random numbers in the cloud, which achieved privacy protection for the vehicle during authentication. The utilization of blockchain for secure distribution of group keys has been proposed, which reduced the computational overhead of the Quantum Secret Service platform and enabled vehicle revocation and traceability. A two-stage key generation method was devised to ensure the security and efficiency of group key distribution in various scenarios, as well as achieve forward and backward security. The signaling and computation overheads were calculated, the signaling overhead was reduced by nearly half. During the group key distribution process, the computational overhead at the vehicle was reduced by 44%, while the computational overhead at the roadside is approximately 20% of the overhead in the comparison scheme. The formal security analysis results proved the security and feasibility of this scheme.

VANET  /  Anonymous authentication  /  Blockchain  /  Group key distribution  /  Information security
Teng Cheng, Qiang Liu, Qin Shi, Chuansu Wang, Xing Zhang. Group Key Distribution Scheme Based on Blockchain and Quantum Keys for VANET[J]. Automobile Technology, 2023 , (10) : 1 -8 . DOI: 10.19620/j.cnki.1000-3703.20230691
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doi: 10.19620/j.cnki.1000-3703.20230691
  • Online Date：2025-12-07
  • Published：2023-10-24
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  • Revised：2023-07-28
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Affiliations
    1 Key Laboratory for Automated Vehicle Safety Technology of Anhui Province, Engineering Research Center for Intelligent Transportation and Cooperative Vehicle-Infrastructure of Anhui Province, Hefei University of Technology, Hefei 230009
    2 Chery Automobile Co., Ltd., Wuhu 241000
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