With the rapid development of the Internet of Things (IoT) and its potential integration with the traditional Vehicular Ad-Hoc Networks (VANETs), we have witnessed the emergence of the Internet of Vehicles (IoV), which promises to seamlessly integrate into smart transportation systems. However, the key characteristics of IoV, such as high-speed mobility and frequent disconnections make it difficult to manage its security and privacy. The Blockchain, as a distributed tamper-resistant ledge, has been proposed as an innovative solution that guarantees privacy-preserving yet secure schemes. In this paper, we review recent literature on the application of blockchain to IoV, in particular, and intelligent transportation systems in general.

翻译：随着物联网（IoT）的快速发展及其与传统车载自组织网络（VANETs）的潜在融合，我们见证了车联网（IoV）的兴起，其有望无缝集成到智能交通系统中。然而，车联网的关键特性，如高速移动性和频繁断连，使其安全与隐私管理面临挑战。区块链作为一种分布式防篡改账本，已被提出作为一种创新解决方案，能够保障隐私保护且安全的机制。本文综述了近年来关于区块链在车联网（特别是智能交通系统）中应用的相关文献。