title: Double image encryption by using iterative random binary encoding in gyrator domains.
abstract: We propose a double image encryption by using random binary encoding and gyrator transform. Two secret images are first regarded as the real part and imaginary part of complex function. Chaotic map is used for obtaining random binary matrix. The real part and imaginary part of complex function are exchanged under the control of random binary data. An iterative structure composed of the random binary encoding method is designed and employed for enhancing the security of encryption algorithm. The parameters in chaotic map and gyrator transform serve as the keys of this encryption scheme. Some numerical simulations have been made, to demonstrate the performance this algorithm.
authors.affiliation: 1 Department of Automation Measurement and Control Engineering, Harbin Institute of Technology, Harbin 150001, PR China. zjliuv@gmail.com
authors.forename: Zhengjun
authors.initials: Z
authors.lastname: Liu
authors.forename: Qing
authors.initials: Q
authors.lastname: Guo
authors.forename: Lie
authors.initials: L
authors.lastname: Xu
authors.forename: Muhammad Ashfaq
authors.initials: MA
authors.lastname: Ahmad
authors.forename: Shutian
authors.initials: S
authors.lastname: Liu
mesh_terms: D000465:Algorithms; D016247:Information Storage and Retrieval / Q000379:methods*; D055096:Optical Devices; D012637:Security Measures