Abstract Internet of Vehicles (IoV) is a typical representative of the Internet of Things in the area of transportation systems. Due to the mobility of vehicles, most applications for IoV are based on the location information. How to provide location-based access control is especially important for the IoV environment. Based on the multi-authority attribute-based encryption, we propose a novel location-based encryption scheme that enables both attribute-based and location-based access control for cloud storage. In this scene, vehicles can access data only if they arrive at a designated location and their attributes satisfy the access policy simultaneously. In the deployment of our scheme, we introduce fog computing and blockchain technologies. We deploy the fog nodes in the data access area to issue location-based keys and aid decrypting for vehicles, while we deploy the blockchain system to publish public parameters. The experiment shows that our scheme is feasible in practical applications.

中文翻译：

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基于位置的车联网数据访问控制方案

摘要 车联网（IoV）是交通系统领域物联网的典型代表。由于车辆的移动性，大多数车联网应用都是基于位置信息。如何提供基于位置的访问控制对于车联网环境尤为重要。基于多权限基于属性的加密，我们提出了一种新颖的基于位置的加密方案，该方案可以实现基于属性和基于位置的云存储访问控制。在这个场景中，车辆只有在到达指定位置并且它们的属性同时满足访问策略时才能访问数据。在我们方案的部署中，我们引入了雾计算和区块链技术。我们在数据访问区域部署雾节点来发布基于位置的密钥并帮助车辆解密，同时我们部署区块链系统来发布公共参数。实验表明，我们的方案在实际应用中是可行的。