A QR-code based audio watermarking technique for tracing traitors. Chaabane, F., Charfeddine, M., Puech, W., & Ben Amaf, C. In 2015 23rd European Signal Processing Conference (EUSIPCO), pages 51-55, Aug, 2015.
A QR-code based audio watermarking technique for tracing traitors [pdf]Paper  doi  abstract   bibtex   
Handling a great number of users and surviving different types of attacks present fundamental challenges of the majority fingerprinting systems in the tracing traitor field. In this paper, the proposed technique consists in embedding a fingerprint, a QR code in the audio stream extracted from the media release. Using the QR-code provides several advantages as supporting a large amount of information in a compact format end damage resiliency. This paper proposes to encode the identifier which is a parallel concatenation of two tracing codes: Boneh Shaw and Tardos codes into QR-code. The proposed approach should not only improve the two-stage tracing strategy by reducing the complexity computation, but also enhance the secure side of the proposed technique by the preprocessing treatment before generating the QR-code.

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