JFET_V3_N4_RP9 Monisha Sharma M.K. Kowar Monisha Sharma Journal on Future Engineering and Technology 2230 – 7184 3 4 70 79 Quasi pseudo random sequence, Genetic algorithm, Chaotic sequence, Chaotic system, Elliptic curve In the present paper, a novel Elliptic curve and quasi pseudo random sequence based Genetic algorithm for data encryption has been proposed. By combining the spatial domain encryption of digital image by the proposed technique and a new pseudo random generator, the security of encryption scheme has been enhanced effectively. Instead of encrypting an image in a chaotic signal directly, the proposed scheme uses multi-chaotic systems based on the idea of higher level of secrecy. Two of the chaotic systems are used to generate a pseudo random sequence, which is better than the existing ones. The other chaotic system is used for encryption purpose. The encryption by this method is such that the real time signal can be transformed into completely disordered data. The security of encryption scheme is analyzed in detail. The proposed algorithm possesses interesting features like, High level of security, Less memory usage requirement, Low computational complexity, Larger key space, Sensitive to key and can resist brute force attacks, Small key size, Faster implementation and Less Bandwidth. Thus the proposed scheme is very much suitable for the digital image encryption. May - July 2008 Copyright © 2008 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=610