Robust hiding of fingerprint-biometric data into audio signals

Authors:
Muhammad Khurram Khan;Ling Xie;Jiashu Zhang
Affiliations:
Bahria University, Dept. of Computer Science & Engineering, Karachi, Pakistan and Sichuan Key Lab of Signal & Information Processing, Southwest Jiaotong University, Chengdu, China;Sichuan Key Lab of Signal & Information Processing, Southwest Jiaotong University, Chengdu, China;Sichuan Key Lab of Signal & Information Processing, Southwest Jiaotong University, Chengdu, China
Venue:
ICB'07 Proceedings of the 2007 international conference on Advances in Biometrics
Year:
2007

Citing 8
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Abstract

This paper presents a novel fingerprint-biometric template protection scheme, in which templates are concealed into audio signals. Fingerprint templates are encrypted by chaotic encryption and then hid into the chaotically selected random sampling points of the host audio signal by a new non-uniform discrete Fourier transform (NDFT)-based data hiding method. The template extraction process is completely blind and does not require original audio signal, thus the extraction depends on the secret key. Experimental results show that the proposed scheme is robust against common signal processing attacks and achieves higher verification accuracy.