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This paper covers, a novel scheme of protecting hidden transmission of biometrics using authentication watermarking. The proposed scheme uses watermark embedding algorithm. Compared with traditional personal identification techniques such as passwords and personal identification number codes, automated biometrics authentication provides a convenient and reliable method in diverse application but their validity must be guaranteed. Watermarking technique provides solution to ensure the validity of biometrics; proposed scheme is composed of three parts: watermark embedding, data embedding and data extraction.
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