Mended algorithm for image encryption based on random shuffling technique

Abstract

With the steps forward in information swap by electronic system, the need of information security has become inevitability. Multimedia security is already one of the most crucial problems in information science. Specially, as character of digital image, the standard cipher like DES and RSA don't seem to be appropriate for being applied to encipher the digital image. Consequently, the study of image encryption scheme attracts the interest of huge researchers. There are different techniques that have been enforced to get better the protection in the field of secret writing. In the existing system they have used many transforms such as DCT, Fourier, etc., along with scrambling. In this project, an efficient kind of image encryption scheme is presented by using a random permutation, rotation operation, cipher block chaining (CBC) technique being regarded for encryption. The parameters are random and serve as the key of this encryption method then the scrambling scheme of the pixels. The scrambling operation is based on the RGB planes in specified directions such as horizontal vertical, diagonal. In the proposed system improved security is deployed without the use of transform domain. The proposed scheme can achieve various image quality parameters such the mean square error, peak signal to noise ratio, bit error rate. It is computationally secure. The intended plan is trouble-free, rapid and approachable to the secret key.