Multiple Image Encryption Using Chaotic Map And DNA Computing

Abstract

Security of image and video data has become increasingly important for various applications such as internet-based communications, video conferencing, medical and military application etc. Encryption is usually recommended to solve this issue. Repeatedly, Encrypt the single image is very undesirable. So Multiple image encryption has received attention. Multiple image encryption based on mixed image element and chaos proposed by Zhang,Wang is less secure due to only the order of image blocks scrambled in algorithm and not a content of image.So to resolve that problem novel algorithm proposed in which image content is also scrambled using DNA computing. which will more dependent on plaintext to resist plaintext attack and reduce correlation between pixels to resist stastical attack.DNA technology has been used with chaotic cryptosystem to double assurance the security of image cryptosystem by chaotic system and DNA biological manipulation. So proposed algorithm will be more secure and resisted against recognized attack.