By offering sophisticated services and centralizing a huge volume of personal data, modern
smartphones changed the way we socialize, entertain and work. To this aim, they rely upon …

Physical layer covert communication is a crucial secure communication technology that
enables a transmitter to convey information covertly to a recipient without being detected by …

Covert communication can prevent an adversary from knowing that a transmission has
occurred between two users. In this article, we consider covert wireless communications in …

This paper describes our design and implementation of a covert channel over LoRa physical
layer (PHY). LoRa adopts a unique modulation scheme (chirp spread spectrum (CSS)) to …

Wireless covert channels promise to exfiltrate information with high bandwidth by
circumventing traditional access control mechanisms. Ideally, they are only accessible by …

Flying ad hoc networks (FANETs) are gaining much traction in recent years due to their wide
range of applications, resulting in the emergence of a number of studies on the facilitation of …

We propose a Hardware Trojan (HT) attack in wireless Integrated Circuits (ICs) that aims at
leaking sensitive information within a legitimate transmission. The HT is hidden inside the …

Abstract The use of Unmanned Aerial Vehicles (UAVs) for military as well as civilian
applications such as search and rescue operations, disaster management, parcel delivery …

Undetectable wireless transmissions are fundamental to avoid eavesdroppers or censorship
by authoritarian governments. To address this issue, wireless steganography “hides” covert …

This work investigates wireless covert communication in a multi-sensor asymmetric noise
scenario. We adopt KL (Kullback–Leibler) divergence as the covertness constraint metric …