Improved Multi-Model Biometric Authentication using Watermarking and Visual Cryptography

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Aditi Verma
Meha Khera

Abstract

Information security is one of the most promising research area that confirms the secure data communication between distance users. There are number of cryptographic and steganography techniques to secure the information. In this work, a hybrid multi-model biometric architecture is presented that combines the watermarking, cryptography and biometric authentication. This multi-model architecture includes two types of biometric images i.e. iris and finger print image. This presented hybrid model is defined in three different layer where each layer defines a separate level of security. In first stage, the visual cryptography is performed by using the half tone fingerprint and iris images. This visual cryptography will use the random sequence algorithm to perform the visual cryptography. The cryptographic image will not increase the size of the image. At the second stage, this visual cryptographic image will be stored behind any source biometric object. To perform the image watermarking in other image, DWT based image will be implemented. Now this dual biometric embedded cover image will be communicated at the receiver side. On the receiver side, the reverse process of watermark recovery and the retrieval of biometric image from the cryptographic watermarked object. At the final stage, these two biometric images will be compared with the biometric image dataset to confirm the biometric authentication. To perform this authentication, the weighted PCA will be implemented. The proposed work will be implemented in matlab environment. The analysis of the work will be performed on each stage of the presented model.


Keywords: Iris, Fingerprint, Authentication, Visual Cryptography, Watermarking.

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