Image Authentication System based on Digital Watermark and Digital Signature

Abstract

In this paper to protect copyright, ownership and content integrity of digital media including digital watermarking techniques. The primary motivation of this article is to study the principles of cryptographic primitives and watermarking schemes. In this paper, we propose a secure verification system for watermarked images with the intention of copyright protection. RSA algorithm, RSA signature, multi-signatures,, and LSB technique are employed in the proposed system. The proposed system is developed by C# programming language. This projected system can withstand compression brightness and no attack can destroy copyright of the image, in addition, no one can alter content of transmitted images. In this paper ,we use RSA multi -signature algorithm to protect unauthorized distribution and LSB technique to embed and detect watermark.