Résumé
Handling a great number of users and surviving different types of attacks present fundamental challenges of the major- ity fingerprinting systems in the tracing traitor field. In this paper, the proposed technique consists in embedding a finger- print, 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 for- mat 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.