Vehicular social networking (VSN), as a novel communication paradigm, exploits opportunistic encounters among vehicles for mobile social networking, collaborative content dissemination, and to provide a variety of services for users and their vehicles. VSNs promise to solve problems such as the ever-increasing number of road accidents, or traffic congestion, by forming networks of vehicles whose users share common interests. However, in particular in urban regions, VSNs benefit from extending far beyond vehicular networks with their road side units, by integrating all kinds of sensors to provide higher accuracy and additional information in increasingly crowded areas. Integrating such sensors turns VSNs into networks of cellular-connected IoT devices with mobile cells and raises the question how to authenticate all these units in a scalable, efficient, and anonymous manner. In this article, we present SI-AKAV, an efficient group-local authentication scheme for cellular-connected IoT devices, which is specifically tailored to overcome the high computational costs of existing schemes, while improving in all of the above dimensions. For example, compared with the state-of-the-art authentication and key agreement protocol (AKA), SI-AKAV reduces communication volume by 29% and computation overhead by 41%.

中文翻译：

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SI-AKAV：车辆社交网络中蜂窝连接物联网设备的安全集成身份验证和密钥协议

车辆社交网络（VSN）作为一种新颖的通信范式，利用车辆之间的机会性相遇进行移动社交网络、协作内容传播，并为用户及其车辆提供各种服务。 VSN 有望通过形成用户拥有共同利益的车辆网络来解决不断增加的道路事故数量或交通拥堵等问题。然而，特别是在城市地区，VSN 受益于远远超出车辆网络及其路边单元的范围，通过集成各种传感器，在日益拥挤的地区提供更高的精度和附加信息。集成此类传感器将 VSN 转变为具有移动单元的蜂窝连接物联网设备网络，并提出了如何以可扩展、高效和匿名的方式对所有这些单元进行身份验证的问题。在本文中，我们提出了 SI-AKAV，这是一种适用于蜂窝连接物联网设备的高效组本地身份验证方案，该方案专门用于克服现有方案的高计算成本，同时在上述所有方面进行改进。例如，与最先进的身份验证和密钥协商协议（AKA）相比，SI-AKAV 减少了 29% 的通信量和 41% 的计算开销。