Medical Image Security Using a Visual Cryptography Technique along with Blockchain

Abstract

As the fastest mode of communication in today’s world is the World Wide Web i.e. the Internet. Securing data transmitted through the internet is essential. The data can be shared in the form of either image, audio or video, and so on. In the literature review, there are many techniques proposed to provide Data Confidentiality (secrecy of data). One among them is Visual Cryptography. For Medical Image security, a Visual Cryptography Technique along with blockchain (BVCT) is proposed in this paper. Secret information can be shared in the form of images, text, etc., using this technique. In this paper, by using the proposed technique at the sender side the medical image is encrypted first and then embed the image with blockchain. Blockchain is an immutable record book, and it is shared that helps the process of transactions which are already recorded, and it is useful for tracking assets in a business environment. Followed by decryption reconstruction of the secret image is done using three meaningful shares at the receiver side. In the secret image blockchain is used by meaningful shares for each pixel. In this paper for encryption, no pixel expansion approach is implanted. Less complex and Lossless embedding and encryption approaches are used.