High capacity secured digital watermarking for copyright protection

Abstract

Computer Network provides a way to share and distribute files and information to the masses within a short span of time. With the advancement in the networking technology, many new ways to share the information is cropping up like mushrooms. With the growth in technology and ways to share information, security and authentication of the information becomes a major issue. There are many ways to secure the information shared, like Cryptography, which makes the information shared unintelligible and Steganography, which hides the data to be shared inside another digital medium like text, image, video or audio files. We propose a high capacity secured digital watermarking steganography by combining cryptography and steganography thus taking advantage of the merits of both Cryptography and Steganography. We achieve high capacity by compression and security by encryption.