CLASRM: A Lightweight and Secure Certificateless Aggregate Signature Scheme with Revocation Mechanism for 5G-Enabled Vehicular Networks
CLASRM: A Lightweight and Secure Certificateless Aggregate Signature Scheme with Revocation Mechanism for 5G-Enabled Vehicular Networks
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DOI：
10.1155/2022/3646960
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发表时间：
2022-04
影响因子：
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通讯作者：
Zhihua Wang;Haofan Wang;Yongjian Wang;Xiaolong Yang
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文献类型：
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作者：
Zhihua Wang;Haofan Wang;Yongjian Wang;Xiaolong Yang
5G技术的快速部署，进一步加强了传感设备和系统之间的大规模互联互通，推动了智慧城市和智能交通系统的快速发展。5g车联网利用蜂窝车对万物（C-V2X）技术，实现移动车辆之间、车辆与基础设施之间、车辆与云之间的连接，减少交通拥堵和事故发生的可能性，提高交通效率，实现自动驾驶。此外，5g车联网还提供信息娱乐服务和行业应用服务。然而，高强度的数据传输会带来严重的资源开销负担，并且在车联网通信过程中存在安全和隐私隐患。现有的一些车网认证方案采用基于pki和基于身份的认证方法来实现有条件的隐私保护。然而，这些方案过于昂贵，无法解决昂贵的证书管理或高风险的密钥托管问题。一些方案采用计算复杂的双线性配对运算，效率较低，且不考虑恶意节点的撤销，无法有效防止进一步的恶意攻击。针对上述问题，本文提出了一种轻量级无证书聚合签名（CLAS）方案，该方案具有适合5g车载网络的撤销机制。该方案利用聚合签名技术将多个签名聚合为一个短签名，从而降低了路旁单元（rsu）的通信开销和存储开销。此外，我们提出的方案利用椭圆曲线密码术（ECC）来减少验证时间和计算开销。此外，为了防止恶意用户发送无效签名进行攻击，我们提出的方案使用二分搜索来识别无效签名，并引入杜鹃过滤器来撤销恶意用户以防止再次攻击。最后，形式证明和实验分析表明，与以往的方案相比，我们提出的方案在安全性和效率方面具有更大的优势。
The rapid deployment of 5G technology has further strengthened the large-scale interconnection between sensing devices and systems and promoted the rapid development of smart cities and intelligent transportation systems. 5G-enabled vehicular networks take advantage of cellular vehicle-to-everything (C-V2X) technology to achieve the connection between moving vehicles, between vehicles and infrastructure, and between vehicles and the cloud, which can reduce the possibility of traffic jams and accidents, improve transportation efficiency, and realize automatic driving. Besides, 5G-enabled vehicular networks also provide infotainment services and industry application services. High-strength data transmission, however, will bring a serious burden of resource overhead, and there are hidden dangers of security and privacy in the communication process of vehicular networks. Some current vehicular network authentication schemes adopt public key infrastructure-based (PKI-based) and identity-based authentication methods to achieve conditional privacy preservation. Still, these schemes are too expensive and cannot address the problems of costly certificate management or risky key escrow. Some schemes use computationally complex bilinear pairing operations that result in low efficiency and do not consider the revocation of malicious nodes so that they cannot effectively prevent further malicious attacks. This paper proposes a lightweight certificateless aggregate signature (CLAS) scheme with a revocation mechanism suitable for 5G-enabled vehicular networks in response to the above problems. Our proposed scheme uses aggregation signature technology to aggregate multiple signatures into a single short signature, thus reducing communication overhead and storage overhead of road side units (RSUs). Furthermore, our proposed scheme utilizes the elliptic curve cryptography (ECC) to reduce verification time and computational overhead. Moreover, in order to prevent malicious users from sending invalid signatures to attack, our proposed scheme uses binary search to identify invalid signatures and introduces a cuckoo filter to revoke malicious users to prevent reattack. Finally, formal proof and experimental analysis show that our proposed scheme has greater advantages with respect to security and efficiency compared with the previous schemes.