V2V车联网中隐私保护性异构聚合签密方案

doi:10.19678/j.issn.1000-3428.0063450

摘要/Abstract

摘要： 随着5G/6G移动通信技术的发展，车联网对于车辆对基础设施、车辆对车辆之间快速交换信息的要求明显提高。然而，在5G/6G网络切片技术中，不同的网络切片采用不同的密码体制，从而会形成异构网络通信。异构车联网可以实现车辆信息的即时共享，但开放的无线通信通道使车辆隐私信息易被泄露，这需要保证共享数据的机密性和完整性。提出一种隐私保护性异构聚合签密方案。该方案使用异构签密技术，在公钥基础设施和基于身份的密码系统（IBC）网络切片环境中可实现不同密码系统注册车辆之间的异构安全通信，同时采用聚合技术，在IBC环境中的车辆将接收到的密文消息进行聚合并对其解密。为确保解密后的密文消息完整，接收车辆对消息进行批量验证，以减少解签密过程所需的时间及传输量。在随机预言模型下，该方案对适应性选择密文攻击具有不可区分性，对适应性选择消息攻击具有存在性与不可伪造性。实验结果表明，相比基于边缘计算的无证书聚合签密方案与车联网高效签密方案，该方案在发送车辆对消息进行签密的阶段中所用时间减少了18.91%~63.12%，在接收车辆对密文进行解签密的阶段中所用时间减少了5.91%~33.66%，具有较高的计算效率。

关键词: 车联网, 公钥基础设施, 基于身份的密码系统, 异构聚合签密, 5G/6G网络切片

Abstract: Owing to the emergence of 5G/6G mobile communication technology, the requirements of Internet of vehicles for the rapid exchange of information between Vehicle-to-Infrastructure(V2V), and between Vehicle-to-Increased(V2I).However, in the 5G/6G network slicing technology, different network slices use different cryptosystems, thus affording heterogeneous network communication.Heterogeneous vehicle networking can realize the instant sharing of vehicle information.However, owing to open wireless communication channels, vehicle privacy information is easily leaked;as such, the confidentiality and integrity of information must be ensured.Hence, this paper proposes a privacy-preserving heterogeneous aggregated signcryption scheme.The proposed scheme uses heterogeneous signcryption technology to achieve heterogeneous secure communication between registered vehicles in different cryptographic systems in Public Key Infrastructure(PKI) and Identity-Based Cryptosystem(IBC) network slicing environments.Using aggregation technology, vehicles in the IBC aggregate and unsigncrypt the received ciphertext messages.To ensure that the unsigncrypted ciphertext message is complete, the receiving vehicle verifies the messages in batches, which obviates the requirement for determining the signcryption process time and transmission volume.When using a random oracle model, the scheme is indistinguishable to adaptively selected ciphertext attacks and existentially unforgeable to adaptively selected message attacks.The experimental results show that, compared with the certificateless aggregation signcrypting scheme based on edge computing and the efficient signcrypting scheme of Internet of vehicles, the time required by this scheme for signcrypting the message sent by the sending vehicle is 18.91%~63.12% less, and the time required by the receiving vehicle to decrypt the ciphertext is 5.91%~33.66% less, which proves the high computational efficiency of the algorithm.

Key words: Internet of vehicles, Public Key Infrastructure(PKI), Identity-Based Cryptosystem(IBC), heterogeneous aggregated signcryption, 5G/6G network slicing

中图分类号:

TP309

牛淑芬, 闫森, 吕锐曦, 周思玮, 张美玲. V2V车联网中隐私保护性异构聚合签密方案[J]. 计算机工程, 2022, 48(9): 20-27,36.

NIU Shufen, YAN Sen, Lü Ruixi, ZHOU Siwei, ZHANG Meiling. Privacy-Preserving Heterogeneous Aggregated Signcryption Scheme in V2V Internet of Vehicles[J]. Computer Engineering, 2022, 48(9): 20-27,36.

http://www.ecice06.com/CN/Y2022/V48/I9/20

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