The paper presents basic principles of network steganography, which is a comparatively new research subject in the area of information hiding, followed by a concise overview and classification of network steganographic methods and techniques.
@article{arxiv.1207.0917,
title = {Principles and Overview of Network Steganography},
author = {Jozef Lubacz and Wojciech Mazurczyk and Krzysztof Szczypiorski},
journal= {arXiv preprint arXiv:1207.0917},
year = {2012}
}