Advance image encryption technique utilizing compression, dynamical system and S-boxes

Abstract

Chaos theory is initially developed in the 1970s and has been utilized in the field of cryptography for the last three decades. In present work, an implementation of image encryption technique using chaotic system, compression and S-boxes is discussed. In this encryption scheme, compression is used to hide the original size of (plain text) image and also reduce the time complexity of the scheme. In addition to this, a particular S-box is selected for the encryption process with the help of an improved range chaotic map. The proposed scheme is discussed in detail, along with its standard security analysis and experimental results. This improved chaotic map and S-boxes provide large key space and high level of security. The size of cipher text generated by this scheme is different from plain text and is easy to implement for practical application of secure transmission of confidential data.