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GENERATION OF DIGITAL WATERMARK FROM IRIS AND FINGERPRINT DATA BY TWO STAGE ENCRYPTION USING CHAOTIC MAPS
GENERATION OF DIGITAL WATERMARK FROM IRIS AND FINGERPRINT DATA BY TWO STAGE ENCRYPTION USING CHAOTIC MAPS
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机译：利用混沌映射通过两阶段加密从虹膜和指纹数据中生成数字水印
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摘要
The present invention relates to generation of digital watermark from iris and fingerprint data by two stage encryption using chaotic maps. First, template of the fingerprint is extracted from the selected minutiae points and the template is created from the iris image. Both these templates are encrypted using a chaotic map. Both the encrypted biometric templates are used as an input to a function to generate a unique digital pattern. This digital pattern is again encrypted using a chaotic map. This encrypted digital pattern is used to watermark digital media signals like digital image, audio etc. This two step encryption makes the system much more robust for an attacker in comparison to the existing system.
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