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Compared with traditional personal identification techniques such as passwords and PIN codes, automated biometrics authentication provides a convenient and reliable method in diverse applications, but their validity must be guaranteed. Watermarking technique may be a solution to ensure the validity of biometrics. In this paper, a novel scheme of protecting hidden transmission of biometrics using authentication...
In this paper, a novel framework combining bi-layer watermarking and PKI for biometric templates secure transmission is proposed. We design a novel bi-layer watermarking algorithm. At the first-layer, DCT-based blind data hiding algorithm is employed. At the second-layer, the employed watermarking algorithm is public to all receivers and removable. The encrypted biometric templates and signature of...
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