A STATE OF THE ART SURVEY ON CHAOS BASED IMAGE ENCRYPTION FOR SECURE DATA TRANSMISSION

Abstract

Digital images represent a big part of multimedia communication in the present data transfer scenario. Their welfare, therefore, is a great area of concern. Different chaotic maps, used in image encryption, are analyzed in this paper and their merits and demerits are discussed. For image encryption, the properties of chaotic maps such as stochastic, ergodicity, and highly sensitive to initial situations make them secure. Low-dimensional chaotic maps were used for many of the earlier proposed image encryption methods, showing the lowest degree of security and having very little ability to withstand brute force and statistical attacks. Researchers have created numerous high dimensional chaotic maps to solve this problem. An attempt has been made to illustrate the characteristics and techniques of various chaotic maps used for image encryption in this review article.