Physical layer security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently. The key idea behind physical layer security is to utilize the intrinsic randomness of the transmission channel to guarantee the security in physical layer. The evolution towards 5G wireless communications poses new challenges for physic...

Data security at the physical layer of optical networks, or optical layer security, has received considerable research attention due to the rapid growth of optical network capacity [1]. Among various optical layer approaches, optical codedivision multiple access (OCDMA) systems are considered to be promising because of the physical encoding and decoding processes comprising these systems. Gener...

Governments, companies, universities and research institutes are pushing the research and development of cyber-physical systems (CPS). However, the development of cyberphysical systems is constrained by security factors. According to this situation, this paper put forward a CPS security model, which contains security objectives, basic theories, simulation, and CPS framework, summarizes security...

The cyber-physical system (CPS) has made tremendous progress in recent years and also disrupting technical fields ranging from health, transportation, industries, more. However, CPS security is still one of the concerns for wide adoption owing to high number devices connecting internet traditional solutions may not be suitable protect advanced, application-specific attacks. This paper presents ...

In this letter, the use of intelligent reflecting surface (IRS) to enhance physical layer security downlink wireless communication is investigated. Assuming a single-antenna legitimate user and multi-antenna eavesdropper, we propose an effective algorithm jointly optimize active passive beamforming. proposed algorithm, optimal transmit beamforming vector at BS under fixed IRS phase shifts deriv...