Real-Time Secure/Unsecure Video Latency Measurement/Analysis with FPGA-Based Bump-in-the-Wire Security
Real-Time Secure/Unsecure Video Latency Measurement/Analysis with FPGA-Based Bump-in-the-Wire Security
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DOI：
10.3390/s19132984
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发表时间：
2019-07-01
期刊：
影响因子：
3.9
通讯作者：
Toal, Daniel
中科院分区：
文献类型：
--
作者：
Kaknjo, Admir;Rao, Muzaffar;Toal, Daniel
随着物联网（IoT）的发展，出现了许多挑战，如信息安全和隐私，互操作性/标准以及监管和法律的问题。这项工作的重点是信息安全问题，这是互联系统面临的主要挑战之一，需要在不影响系统行为的情况下解决。信息，这是在互联网上提供的东西，从不敏感的信息（例如，来自室外温度传感器的读数）到极其敏感的信息（例如，来自摄像机的视频流），并且需要通过互联网进行保护。利用摄像头作为信息源的东西属于物联网的一个子类，称为IoVT（视频物联网）。本文介绍了安全和不安全的视频延迟测量结果在互联网上的海上遥控器（远程操作的车辆）。基于LabVIEW现场可编程门阵列（FPGA）的线中碰撞（BITW）安全内核用于在IoVT节点（配备实时馈送摄像头的IoT）的视频流上提供启用AES（高级加密标准）的安全功能。所设计的基于LabVIEW的软件架构提供了一个选项，以启用/禁用AES加密的视频传输。测量并给出了嵌入加密对具有实时约束的流的延迟影响。发现所使用的加密机制不会对所观察的IoVT节点的视频反馈性能产生很大影响，这对于用于远程控制和驾驶的实时安全视频通信至关重要。视频延迟测量结果是使用128，256和512字节的AES块长度为H.264和MJPEG编码方案通过TCP和UDP传输协议传输。延迟测量在两种情况下执行（即，在传输的任一端具有匹配设备和不同设备）。
With the growth of the internet of things (IoT), many challenges like information security and privacy, interoperability/standard, and regulatory and legal issues are arising. This work focused on the information security issue, which is one of the primary challenges faced by connected systems that needs to be resolved without impairing system behaviour. Information, which is made available on the Internet by the things, varies from insensitive information (e.g., readings from outdoor temperature sensors) to extremely sensitive information (e.g., video stream from a camera) and needs to be secured over the Internet. Things which utilise cameras as a source of information pertain to a subclass of the IoT called IoVT (internet of video things). This paper presents secured and unsecured video latency measurement results over the Internet for a marine ROV (remotely operated vehicle). A LabVIEW field programmable gate arrays (FPGAs)-based bump-in-the-wire (BITW) secure core is used to provide an AES (advanced encryption standard)-enabled security feature on the video stream of an IoVT node (ROV equipped with a live-feed camera). The designed LabVIEW-based software architecture provides an option to enable/disable the AES encryption for the video transmission. The latency effects of embedding encryption on the stream with real-time constraints are measured and presented. It is found that the encryption mechanism used does not greatly influence the video feedback performance of the observed IoVT node, which is critical for real-time secure video communication for ROV remote control and piloting. The video latency measurement results are taken using 128, 256 and 512 bytes block lengths of AES for both H.264 and MJPEG encoding schemes transmitted over both TCP and UDP transmission protocols. The latency measurement is performed in two scenarios (i.e., with matching equipment and different equipment on either end of the transmission).