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Security measures in computer networks have demanded diverse solutions in different scenarios, which range from protocols to applications using hardware and/or software. This research will combine two separate disciplines: optical networks and cyber security. This combination will improve data transmission security within optical networks by applying techniques used within cyber security fields, such as encoding and steganography.
Physical layer security applying optical signal processing in fibre optic networks has been researched over recent decades to preserve data transmission confidentiality and privacy. Researchers have proposed encoding techniques, such as Optical Code-Division Multiple Access (OCDMA), and encryption techniques, such as Logical Gates (XOR, AND, NAND) to be applied to the data before transmission; both use keys/codes to create a unique encoding/encrypting pattern. Also, different techniques have been assessed for distributing these keys/codes. Further, the optical steganography is used to conceal the data transmission in a host signal.
In this Master’s thesis optical delay encoding base optical steganography will be experimented and simulated to determine if a stealth signal can be hidden during a data transmission in the fibre optic networks. This project is a collaboration between the ECU’s Security Research Institute (SRI) and the Electron Science Research Institute (ESRI). Also, the experiment will be carried out in the ESRI’s photonic labs.
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