Lightweight Mutual Authentication Protocol for V2G Using Physical Unclonable Function
Lightweight Mutual Authentication Protocol for V2G Using Physical Unclonable Function
复制标题
DOI：
10.1109/tvt.2020.2976960
复制
发表时间：
2020-07-01
影响因子：
6.8
通讯作者：
Guizani, Mohsen
中科院分区：
文献类型：
--
作者：
Bansal, Gaurang;Naren, Naren;Guizani, Mohsen
自过去十年以来，电动汽车（EV）一直在缓慢取代传统的燃油汽车。电动汽车不仅环保，而且当与智能电网结合使用时，还开辟了新的可能性，并可以实现通常称为V2G的车辆智能电网生态系统。这不仅可以鼓励人们转向环保型电动汽车或插电式混合动力电动汽车（PHEV），还可以积极帮助电网的负载管理，并为参与这种生态系统的所有实体带来新的经济效益。尽管如此，隐私和安全仍然是智能电网的一个严重问题。V2G中使用的设备体积小，价格便宜，资源有限，这使得它们容易受到多种攻击。为V2G系统设计的任何协议都必须安全、轻量级，并且必须保护车主的隐私。由于电动汽车和充电站一般没有人看守，因此物理安全也是必须的。为了解决这些问题，我们提出了基于物理不可克隆功能（PUF）的安全用户密钥交换认证（SUKA）协议的V2G系统。该协议使用PUF实现了EV和网格服务器之间的两步相互认证。它是轻量级的，安全的，隐私保护的。仿真结果表明，与现有的V2G认证协议相比，该协议具有更好的性能和更多的安全特性。所提出的协议的安全性使用一个正式的安全模型和分析。
Electric vehicles (EVs) have been slowly replacing conventional fuel based vehicles since the last decade. EVs are not only environment-friendly but when used in conjunction with a smart grid, also open up new possibilities and a Vehicle-Smart Grid ecosystem, commonly called V2G can be achieved. This would not only encourage people to switch to environment-friendly EVs or Plug-in Hybrid Electric Vehicles (PHEVs), but also positively aid in load management on the power grid, and present new economic benefits to all the entities involved in such an ecosystem. Nonetheless, privacy and security remain a serious concern of smart grids. The devices used in V2G are tiny, inexpensive, and resource constrained, which renders them susceptible to multiple attacks. Any protocol designed for V2G systems must be secure, lightweight, and must protect the privacy of the vehicle owner. Since EVs and charging stations are generally not guarded by people, physical security is also a must. To tackle these issues, we propose Physical Unclonable Functions (PUF) based Secure User Key-Exchange Authentication (SUKA) protocol for V2G systems. The proposed protocol uses PUFs to achieve a two-step mutual authentication between an EV and the Grid Server. It is lightweight, secure, and privacy preserving. Simulations show that the proposed protocol performs better and provides more security features than state-of-the-art V2G authentication protocols. The security of the proposed protocol is shown using a formal security model and analysis.