LACK - a VoIP Steganographic Method

TL;DR

This paper introduces LACK, a novel VoIP steganography technique that embeds hidden data in lost audio packets, analyzing its impact on call quality and resistance to detection.

Contribution

The paper proposes a new VoIP steganographic method, LACK, and evaluates its effectiveness and robustness in voice communication systems.

Findings

LACK minimally affects voice quality when properly configured

LACK demonstrates strong resistance to steganalysis techniques

Analytical results confirm the method's viability for covert communication

Abstract

The paper presents a new steganographic method called LACK (Lost Audio PaCKets Steganography) which is intended mainly for VoIP. The method is presented in a broader context of network steganography and of VoIP steganography in particular. The analytical results presented in the paper concern the influence of LACK's hidden data insertion procedure on the method's impact on quality of voice transmission and its resistance to steganalysis.