A novel image encryption algorithm based on genetic recombination and hyper-chaotic systems

Abstract

In this paper, a novel image encryption algorithm based on genetic recombination and hyperchaotic system is proposed. The basic rules of genetic recombination are employed to scramble images because of its effectiveness. Specifically, the plain image is expanded into two compound images composed of selected four bit-planes and diffuse them at bitplane level, the compound bit-planes and key streams are reconstructed based on the principles of genetic recombination, then perform traditional diffusion and obtain cipher images. The hyper-chaotic Lorenz system in this algorithm generates pseudorandom sequences in each phase. The experiment results and analysis have proved that the novel image encryption algorithm is effective for image encryption.

A Novel Image Encryption Algorithm Based on a Fractional-Order Hyperchaotic System and DNA Computing

“…The Lyapunov exponent (LE) is a type of measurement methodology for chaotic level, and a chaotic system is said to be hyperchaotic if it has two or more positive LEs [18]. Since hyperchaotic systems have more advantages such as richer dynamic phenomena and higher randomness than common chaotic systems, lots of hyperchaotic systems have been employed to encrypt images [19][20][21][22][23]. For example, Norouzi et al used the key stream generated by a hyperchaotic system to perform one round diffusion on the image to attain good results [20].…”

“…For example, Norouzi et al used the key stream generated by a hyperchaotic system to perform one round diffusion on the image to attain good results [20]. A novel image encryption algorithm based on genetic recombination and hyperchaotic Lorenz system was put forward by Wang and Zhang [21]. Yuan et al proposed a parallel image cryptosystem by combining the Logistic map and a five-dimensional (5D) hyperchaotic system [23].…”

Image encryption algorithm for torsional components of generator based on compound chaotic model

“…According to the Shannon cryptography theory [17], the uniformity of nif U is introduced to evaluate the uniform distribution characteristics of the image ciphertext information. means the mathematical expectation of e X , n X -the uniform noise sequence, n X -the mathematical expectation of n X .…”

A Novel Image Encryption Scheme Using the Composite Discrete Chaotic System

“…In [12], Mollaeefar et al provided a novel method for color image encryption based on high level chaotic maps Cosinus-Arcsinus and Sinus-Power Logistic map, which have better chaotic behavior against other available chaotic maps. Hyper-chaos has two or more Lyapunov exponents, and it indicates that the dynamics of this system is expanded in more than one direction instability [13][14][15][16]. Wang et al in [13] proposed an effective image encryption algorithm based on genetic recombination and hyper-chaotic system.…”

“…Hyper-chaos has two or more Lyapunov exponents, and it indicates that the dynamics of this system is expanded in more than one direction instability [13][14][15][16]. Wang et al in [13] proposed an effective image encryption algorithm based on genetic recombination and hyper-chaotic system. A new lossless encryption algorithm for color images based on a 6D hyper chaotic system and the 2D discrete wavelet transform in both the frequency domain and the spatial domain with key streams depend on the hyper chaotic system and the plain image is shown in [14].…”