DOUBLE LAYER SECURITY USING VISUAL CRYPTOGRAPHY AND TRANSFORM BASED STEGANOGRAPHY

Abstract

With the recent advances in internet computing in our day to day life the need for communication has increased. Privacy in communication is desired when confidential information is shared between two parties. Mainly this project uses transform based steganography (DCT) and visual cryptography for hiding data. The proposed system provides double layer security. First level of security is achieved by using visual cryptography for the information to be transmitted and this is embedded onto images by using steganography. This project is implemented using Matlab software. In this project the expected result is we take 2 color images and for those we apply DCT and for the DCT transformed images LSB is applied with the bits of the shares which we would have got from V.C.