Image encryption based on Walsh Hadamard and fractional fourier transform using Radial Hilbert Mask

Maan, Priyanka; Singh, Hukum; Kumari, A. Charan

doi:10.1109/ic3tsn.2017.8284472

Cited by 3 publications

(2 citation statements)

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“…The DFrFT can be considered as the generalized configuration of the classical Fourier transform. It provides a more flexible frequency distribution than the conventional DFT [ 38 , 39 ]. Further security can be obtained for the system by adding another parameter called “α”.…”

Section: Preliminariesmentioning

confidence: 99%

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Discrete Transforms and Matrix Rotation Based Cancelable Face and Fingerprint Recognition for Biometric Security Applications

Algarni

Banby

Ismail

et al. 2020

Entropy

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The security of information is necessary for the success of any system. So, there is a need to have a robust mechanism to ensure the verification of any person before allowing him to access the stored data. So, for purposes of increasing the security level and privacy of users against attacks, cancelable biometrics can be utilized. The principal objective of cancelable biometrics is to generate new distorted biometric templates to be stored in biometric databases instead of the original ones. This paper presents effective methods based on different discrete transforms, such as Discrete Fourier Transform (DFT), Fractional Fourier Transform (FrFT), Discrete Cosine Transform (DCT), and Discrete Wavelet Transform (DWT), in addition to matrix rotation to generate cancelable biometric templates, in order to meet revocability and prevent the restoration of the original templates from the generated cancelable ones. Rotated versions of the images are generated in either spatial or transform domains and added together to eliminate the ability to recover the original biometric templates. The cancelability performance is evaluated and tested through extensive simulation results for all proposed methods on a different face and fingerprint datasets. Low Equal Error Rate (EER) values with high AROC values reflect the efficiency of the proposed methods, especially those dependent on DCT and DFrFT. Moreover, a comparative study is performed to evaluate the proposed method with all transformations to select the best one from the security perspective. Furthermore, a comparative analysis is carried out to test the performance of the proposed schemes with the existing schemes. The obtained outcomes reveal the efficiency of the proposed cancelable biometric schemes by introducing an average AROC of 0.998, EER of 0.0023, FAR of 0.008, and FRR of 0.003.

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Section: Preliminariesmentioning

confidence: 99%

“…The DFrFT is similar to the ordinary Fourier transform when α = 1. The DFrFT was expressed in [ 38 ] for a signal f ( t ) for order ‘ α ’ as follows:

where K p is the kernel defined as follows:

…”

Section: Preliminariesmentioning

confidence: 99%