计算机科学
计算机网络
计算机安全
车载自组网
隐藏物
加密
认证(法律)
身份验证服务器
访问控制
方案(数学)
安全性令牌
数据共享
无线自组网
无线
电信
医学
数学分析
替代医学
数学
病理
作者
Jing Zhang,Xinzhong Liu,Jie Cui,Hong Zhong,Lu Wei,Irina Bolodurina,Debiao He
标识
DOI:10.1109/tmc.2023.3323305
摘要
In vehicular networks, caching content on an edge server (ES) is a popular method for quickly responding to massive vehicle service requests, reducing communication delays, and enhancing driver and passenger service experiences. However, after integrating ESs with vehicular networks to provide vehicles access to the cached content in these ESs, significant challenges regarding protecting the privacy of vehicle data and communication security arise. In this study, to address security and privacy-preserving issues, we propose a secure and revocable cache-based distributed data sharing scheme for vehicular networks wherein a token authentication mechanism and multi-authority ciphertext-policy attribute-based encryption are integrated. In this scheme, both authentication and authorization capabilities are delegated to an ES while restricting access to service content to only legal vehicles, achieving proper access control between vehicles and ESs, and effectively preserving the privacy of vehicle data. Moreover, we attributed the revocations of ESs to the associated attribute authorities, eliminating the need for a system-wide update of keying materials. Through rigorous security proofs and detailed security analyses, we demonstrate that the scheme meets the security requirements of vehicular networks and can resist more security attacks. The proposed scheme achieves better balance between computational and communication costs than related schemes.
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