StegIbiza: New Method for Information Hiding in Club Music
Krzysztof Szczypiorski
TL;DR
StegIbiza introduces a novel method for covert communication in club music by modulating tempo based on a Morse code-like scheme, achieving high imperceptibility according to user testing.
Contribution
The paper presents StegIbiza, a new tempo-based information hiding technique for music that is difficult to detect by listeners.
Findings
Testers could not identify differences with 1% tempo change
Method effectively encodes hidden messages in music tempo
High imperceptibility demonstrated in user evaluations
Abstract
In this paper a new method for information hiding in club music is introduced. The method called StegIbiza is based on using the music tempo as a carrier. The tempo is modulated by hidden messages with a 3-value coding scheme, which is an adoption of Morse code for StegIbiza. The evaluation of the system was performed for several music samples (with and without StegIbiza enabled) on a selected group of testers who had a music background. Finally, for the worst case scenario, none of them could identify any differences in the audio with a 1% margin of changed tempo.
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