The Experts below are selected from a list of 25887 Experts worldwide ranked by ideXlab platform
Walter Blondel - One of the best experts on this subject based on the ideXlab platform.
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Dual paths cryptoSystem based on tilt Fresnel diffraction using non-spherical mirror and phase modulation in expanded fractional Fourier transform domain
Scientific Reports, 2019Co-Authors: Hang Chen, Zhengjun Liu, Camel Tanougast, Feifei Liu, Walter BlondelAbstract:In this paper, a dual optics paths optical image cryptoSystem based on tilt Fresnel diffraction and a phase modulation in extend fractional Fourier transform (eFrFT) domain is presented. The tilt Fresnel is designed by using a non-spherical mirror. A part of data from the original image is modulated by the mirror, while the other part is encoded by an expanded fractional Fourier transform. Besides, the random data of the dual channels is combined for forming the encrypted image. The structure parameters in designing the optical hardware System and the random phase can be regarded as decryption keys. Various potential attack experiments are implemented to check the validity of the proposed Cryptographic System.
Hungi Hsiao - One of the best experts on this subject based on the ideXlab platform.
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fingerprint image cryptography based on multiple chaotic Systems
Signal Processing, 2015Co-Authors: Hungi HsiaoAbstract:This paper presents a new multiple chaos-based biometric image cryptoSystem for fingerprint security. This encryption algorithm is constructed with four chaotic Systems, which consist of two 1-D and two high-dimensional 3-D chaotic Systems. This algorithm enhances the security strength of biometric image cryptography that incorporates single chaos and multiple 1-D chaotic Systems. The advantage of the proposed scheme is that it possesses a secret key space large enough to empower the security strength to protect fingerprint image, which is enough to prevent any brute-force attacks. Furthermore, this algorithm has passed the NIST SP 800-22a tests and security analyses, which confirms that the proposed scheme is a secure Cryptographic System. The proposed algorithm is constructed with four chaotic Systems, which include two 1-D and two high-dimensional 3-D chaotic Systems.Our Cryptographic algorithm can successfully pass the NIST SP 800-22a tests and security analyses.The proposed scheme is that it possesses the enough security strength to protect fingerprint image.
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a novel Cryptographic System with adjustable secret key space for color image security using nonlinear adaptive filter
American Journal of Signal Processing, 2015Co-Authors: Hungi Hsiao, Junghsi LeeAbstract:In this paper, we propose a novel chaos-based Cryptographic System for enhancing color image security by using chaotic amplitude phase frequency model nonlinear adaptive filter. The advantage of the proposed scheme is that it possesses the ability of "adjustable secret key space" in order to get the enough security strength to protect color image. Furthermore, the experimental results and security analyses demonstrate that the proposed method has a fine security performance. The "adjustable secret key space" can overcome the security strength issue for obtaining enough secret key length, which can use external signal to adjust the required secret key space without changing the original Cryptographic infrastructure.
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Cryptographic System for medical image security using chaotic apfm nonlinear adaptive filter
International Conference on Orange Technologies, 2013Co-Authors: Hungi Hsiao, Junghsi LeeAbstract:In this paper, a novel Cryptographic System for enhancing medical image security using chaotic amplitude phase frequency model (APFM) nonlinear adaptive filter is proposed. We set nine parameters, simulated time interval, and initial values for APFM nonlinear adaptive filter to generate chaotic orbits, and design a Cryptographic System which could encrypt the medical images (plain images) to cipher images whose histograms are uniformly distributed. Furthermore, our encryption algorithm can successfully pass the NIST SP 800-22a tests. The proposed Cryptographic System is shown to possess good Cryptographic properties and large secret key space which is enough to resist all brute-force attacks.
Hang Chen - One of the best experts on this subject based on the ideXlab platform.
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Dual paths cryptoSystem based on tilt Fresnel diffraction using non-spherical mirror and phase modulation in expanded fractional Fourier transform domain
Scientific Reports, 2019Co-Authors: Hang Chen, Zhengjun Liu, Camel Tanougast, Feifei Liu, Walter BlondelAbstract:In this paper, a dual optics paths optical image cryptoSystem based on tilt Fresnel diffraction and a phase modulation in extend fractional Fourier transform (eFrFT) domain is presented. The tilt Fresnel is designed by using a non-spherical mirror. A part of data from the original image is modulated by the mirror, while the other part is encoded by an expanded fractional Fourier transform. Besides, the random data of the dual channels is combined for forming the encrypted image. The structure parameters in designing the optical hardware System and the random phase can be regarded as decryption keys. Various potential attack experiments are implemented to check the validity of the proposed Cryptographic System.
Feifei Liu - One of the best experts on this subject based on the ideXlab platform.
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Dual paths cryptoSystem based on tilt Fresnel diffraction using non-spherical mirror and phase modulation in expanded fractional Fourier transform domain
Scientific Reports, 2019Co-Authors: Hang Chen, Zhengjun Liu, Camel Tanougast, Feifei Liu, Walter BlondelAbstract:In this paper, a dual optics paths optical image cryptoSystem based on tilt Fresnel diffraction and a phase modulation in extend fractional Fourier transform (eFrFT) domain is presented. The tilt Fresnel is designed by using a non-spherical mirror. A part of data from the original image is modulated by the mirror, while the other part is encoded by an expanded fractional Fourier transform. Besides, the random data of the dual channels is combined for forming the encrypted image. The structure parameters in designing the optical hardware System and the random phase can be regarded as decryption keys. Various potential attack experiments are implemented to check the validity of the proposed Cryptographic System.
Camel Tanougast - One of the best experts on this subject based on the ideXlab platform.
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Dual paths cryptoSystem based on tilt Fresnel diffraction using non-spherical mirror and phase modulation in expanded fractional Fourier transform domain
Scientific Reports, 2019Co-Authors: Hang Chen, Zhengjun Liu, Camel Tanougast, Feifei Liu, Walter BlondelAbstract:In this paper, a dual optics paths optical image cryptoSystem based on tilt Fresnel diffraction and a phase modulation in extend fractional Fourier transform (eFrFT) domain is presented. The tilt Fresnel is designed by using a non-spherical mirror. A part of data from the original image is modulated by the mirror, while the other part is encoded by an expanded fractional Fourier transform. Besides, the random data of the dual channels is combined for forming the encrypted image. The structure parameters in designing the optical hardware System and the random phase can be regarded as decryption keys. Various potential attack experiments are implemented to check the validity of the proposed Cryptographic System.