A new cryptology approach for image encryption

Abstract

In this paper, we propose a new method to develop secure image-encryption techniques using a logistics -based encryption algorithm. In this technique, a Haar wavelet transform was used to decompose the image and decorrelate its pixels into averaging and differencing components. [3] The logistic based encryption algorithm produces a cipher of the test image that has good diffusion and confusion properties [5]. The remaining components (the differencing components) are compressed using a wavelet transform. Many test images are used to demonstrate the validity of the proposed algorithm. The results of several experiments show that the proposed algorithm for image cryptosystems provides an efficient and secure approach to real-time image encryption and transmission. To send the keys in secure form stenography will be used. Steganography is a technique that allows one application to communicate information to another application without a third party even knowing that the communication is occurring. Many tests like NPCR, UACI, PSNR etc. have been done on the sample images to prove the results.