Security of Visible Light Communication systems-A survey

This paper reviews the security of Visible Light Communication (VLC) methods, protocols and systems. In the introduction we briefly outline VLC technology as of today. We then identify the physical aspects of VLC which are relevant to security and present a systematic review of security threats and vulnerabilities with respect to the unique features of VLC systems. We summarize all security techniques proposed in the literature for VLC so far, including physical layer security addressed from the information-theoretic point of view, and the problems of availability and integrity (namely transmission jamming and possible data modification). We also address issues of secure localization, key generation, steganography, and the specific sub-topic of VLC in vehicular networks. In the summary section, we outline all security issues that should be addressed as VLC moves from the experimental to the implementation phase. (C) 2019 Elsevier B.V. All rights reserved.