Color image encryption using DNA based cryptography

Data are vulnerable and need utmost security when they are getting transferred. In image encryption methodologies, the pixels of original images are either manipulated or information is laid inside the image using the image as a cover to protect the data from undesired receivers. In this paper, the images are transferred text files over the unsecured network. We have used an algorithm which uses random key generation and assignment of special codes to most occurring color and encoding range of repeated colors has been incorporated to decrease the text file size and give a layer of security along with this DNA components A, T, G, C decreases the chance of recognizing the data as image. © 2018, Bharati Vidyapeeth's Institute of Computer Applications and Management.