VCC can bring many benefits to intelligent transportation systems. Meanwhile, HSR, an increasingly efficient means of transportation, faces several challenges in terms of high-frequency handover at speeds over 300 km/h. This includes large volumes of data of different types and different degrees of importance. Therefore, a secure and comprehensive cloud computing solution is attractive to improve the safety and efficiency of intelligent HSR. In this article, we present a novel and practical SVCC-HSR based on our long-term research and practice in this field. SVCC-HSR not only considers the various technical features of vehicular cloud computing, but also addresses several special demands in the HSR context. We perform extensive experiments using various scenarios, including frequent handover scenarios in high-speed trains running at 300 km/h with large-volume data transmission scenarios in locomotive depots. The real-world experimental results demonstrate that SVCC-HSR achieves better performance in fast authentication, hierarchical attribute-based data encryption, and transmission efficiency compared to its counterparts.

中文翻译：

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SVCC-HSR：为智能高铁提供安全的车载云计算

VCC可以为智能交通系统带来很多好处。同时，高效率的运输工具高铁在时速超过300 km / h的高频交接方面面临若干挑战。这包括不同类型和重要程度的大量数据。因此，一种安全，全面的云计算解决方案对于提高智能高铁的安全性和效率具有吸引力。在本文中，基于我们在该领域的长期研究和实践，我们提出了一种新颖实用的SVCC-HSR。SVCC-HSR不仅考虑了车辆云计算的各种技术特征，而且还满足了HSR上下文中的一些特殊要求。我们在各种情况下进行了广泛的实验，包括以300 km / h的速度运行的高速列车中的频繁交接场景，以及机车段中的大容量数据传输场景。真实的实验结果表明，与之相比，SVCC-HSR在快速身份验证，基于分层属性的数据加密和传输效率方面具有更好的性能。