Discrete Chaotic Exclusive OR Encryption of Digital Image

Fully chaotic medical image encryption scheme based on dynamic DNA and block rotation

“…Chaotic systems has chaotic characteristics like initial value sensitivity and ergodicity, which can generate pseudo-random sequences of specified length with superior performance when given the initial value, parameters and the number of iterations [27].…”

“…Sine-transform-based chaotic system Classical one-dimensional chaotic systems are widely used to generate chaotic sequences because of their simple form and good performance. By performing a sine transform to the combination of the outputs of two existing one-dimensional chaotic maps (seed maps), sine-transform-based chaotic system (STBCS) proposed by Hua et al [27] has much larger chaotic ranges, better complexity and unpredictability compared with corresponding classical seed maps [29]. In this paper, we use the linear combination of one-dimensional sin map and the other above four one-dimensional maps with excellent chaotic performance as the seed maps respectively to obtain the four-dimensional sine-transform-based chaotic system for the proposed image encryption.…”

“…As one of the indicators reflecting the distribution of pixel intensity values, information entropy can be used to measure the degree of image confusion. Its mathematical expression is shown in equation (27), where p i is the probability of pixel i. After the gray image represented by 8-bit color depth is encrypted, if the information entropy is closer to the theoretical value of 8, the better the performance of the encryption algorithm is, and the more effectively it can resist statistical attacks.…”

Research on image encryption algorithm based on one-dimensional logistic and two-dimensional Hénon chaotic system

“…At the same time, the serious challenges in the field of information security are increasingly highlighted, such as military secret images, satellite monitoring images, medical diagnostic images and so on. Therefore, a certain degree of security and privacy protection for classified information is becoming more and more important [1], and the security protection of image data always occupies an important position in the field of information security, and image encryption and decryption technology is an important method to implement image information protection, and it is also an effective way to solve the security transmission of images in the network.…”