EFFICIENT REVERSIBLE WATERMARKING TECHNIQUE FOR PROTECTED TEMPLATES OF BIOMETRIC AUTHENTICATION SYSTEM
Keywords:
reversible watermarking, tag, RST,, hash code, whirlpool hashAbstract
This paper describes an efficient technique of reversible watermarking for protected templates of biometric authentication system. Tag based searching is used in authentication that reduces searching time. RST invariant features of fingerprint image are used to crate tag. Whirlpool hash method is used to generate hash code which is further used as watermark embedded in biometric fingerprint image. This technique improves speed of verification. This technique improves security of biometric authentication system.
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