Image Encryption Technique for Improvement of Image Security

Abstract

The speedy progress of imaging and communication technologies has remolded pictures into a widespread knowledge kind, like military documents, official correspondence, personal medical data and government documents which are communicated in the form of pictures. Hence, a quick and safe cryptosystem is needed for prime resolution pictures. During this work, associate degree encoding technique is bestowed for securing pictures supported by Arnold cat map and chaotic maps. The system uses Arnold cat map for bit and component level rearrangements on plain and secret pictures, whereas chaotic map generates secret pictures and definite parameters for the permutations. The safety analysis is completed for various samples to examine the strength of projected rule against differential attack, brute force attack, and statistical attacks. Improvement in randomness is an advantage of the proposed system. The system is highly sensitive to the encryption key and initial conditions.