Biometric Image Encryption Scheme based on Modified Double Random Phase Encoding System
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Date
2021-05-25
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Publisher
University of Oum El Bouaghi
Abstract
In this paper, an opto-digital encryption scheme based on a modified Double Random Phase Encoding (DRPE) system is proposed. Two biometric modalities are used in this work which is the face and the corresponding finger print of the same person. Firstly the face biometric image is encrypted chaotically using the permutation-diffusion architecture.
Then obtained encrypted face is multiplied element by element by a constructed mask formed by injecting the finger print image within the phase of this mask. The obtained result will be transformed into a frequency domain by the two-dimensional. Fourier transform or any of its derivatives, resulting complex image is exactly the encrypted biometric image. Experiment computer simulations confirm the efficiency of this work in terms of histogram analysis, loss data and sensitivity test when compared with existing works.
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Keywords
Biometric images; DRPE; opto-digital; permutation-diffusion; finger print; chaotically; fourier transform; histogram analysis.