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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Demonstration of Digital Selective Call spoofing / Förfalskning av Digitala Selektivanrop

Lindbäck, Axel, Javid, Yamha January 2023 (has links)
Digital Selective Calling (DSC) is a vital maritime communications and safety system, enabling ships in distress to alert nearby vessels and coast guard stations of their emergency. While DSC is suitable for calling, its technical format is substandard from a cybersecurity perspective. Specifically, this work aims to demonstrate that Very High Frequency (VHF) DSC distress calls can be spoofed using Software Defined Radio (SDR). A VHF DSC distress call encoder and VHF DSC SDR signal constructor were developed. The forged distress call was transmitted using various techniques to two different DSC decoder programs, as well as to the maritime VHF transceiver ICOM IC-M510. It was shown that all of the targeted DSC decoders were susceptible to spoofing. This thesis concludes that VHF DSC distress calls can be spoofed using SDR, and infers that the DSC system as a whole has inherent security vulnerabilities that need to be addressed to assure the safety of future seafaring.

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