Network covert channels are increasingly used to endow malware with stealthy behaviors,
for instance to exfiltrate data or to orchestrate nodes of a botnet in a cloaked manner …

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 …

A recent trend involves exploiting various information-hiding techniques to empower
malware-for example, to bypass mobile device security frameworks or to exfiltrate sensitive …

Most current audio steganographic methods are content non-adaptive which have poor
security and low embedding capacity. This paper proposes a generalized adaptive Huffman …

Due to improvements in defensive systems, network threats are becoming increasingly
sophisticated and complex as cybercriminals are using various methods to cloak their …

In this paper, a novel steganographic method for Voice over IP applications—called
Steganography-based Interpolation and Auto-Encoding (SIAE)—is proposed. The aim of the …

The rapid advance and popularization of VoIP (Voice over IP) has also brought security
issues. VoIP-based secure voice communication has two sides: first, for legitimate users, the …

With the wide application of adaptive multi-rate (AMR) speech coder, steganography and
steganalysis based on AMR coded speech streams have become a hot spot in the field of …

Image hiding is the process of hiding a secret image in another meaningful image or other
carriers so that the secret image remains imperceptible and can be recovered securely at …

Abstract Information hiding is increasingly used to implement covert channels, to exfiltrate
data or to perform attacks in a stealthy manner. Another important usage deals with privacy …