Image encryption based on the multiple-parameter discrete fractional Fourier transform and chaos function

Optical image cryptosystem using chaotic phase-amplitude masks encoding and least-data-driven decryption by compressive sensing

“…(10) [29] = + Next, combine Eqs. (12) and (13), we have the following formula which is easier to understand We assume that in one measurement, two successive observations of the states of dynamical variable are available, i.e. x t [ ] and + x t [ 1], for all components of the underlying chaotic mapping.…”

“…Taheri et al [11] proposed a phase mask generation scheme using chaos theory and hash function to enhance the DRPE security. Lang et al [12] present an image encryption method by using chaos-based pixel scrambling technique in the multipleparameter discrete fractional Fourier transform domain in order to meet the requirements of the secure image transfer. In [13], with the help of chaos-based discrete fractional random transform and two chaotic random masks, a double optical image encryption scheme was proposed to utilize the advantages of both chaos system and optical transform.…”

Double-image encryption scheme combining DWT-based compressive sensing with discrete fractional random transform

“…As is well known, the linear encryption system is relatively vulnerable to chosen and known plaintext attacks [14,15]. Considering their own strength and weakness, combining transform operation with chaotic system together can further make up for their respective defects [16,17].…”

Opto-digital spectrum encryption by using Baker mapping and gyrator transform

“…The optical information security technology has been deeply researched since Refregier and Javidi proposed double random phase encoding (DRPE) [1][2][3][4][5][6]. For instance, the DRPE has been developed in the domains of Fresnel transform [2] and fractional Fourier transform [7].…”