FPGA implementation of hiding information using cryptographic key

The growth of high speed computer networks and that of Internet, in particular, has explored means of new business, scientific, entertainment, and social opportunities. Digital media offers several distinct advantages over analog media, such as high quality, easy editing, high fidelity copying etc. The ease by which a digital information can be duplicated and distributed has led to the need for effective copyright protection tools. Various software products have been recently introduced in attempt to address these growing concerns. It is done by hiding data (information) within digital audio, images and video files. One way such data hiding is digital signature, copyright label or digital watermark, that completely characterizes the person who applies it and, therefore, marks it as being his intellectual property. Digital Watermarking is intended by its developers as the solution to the need to provide value added protection on top of data encryption and scrambling for content protection. Here the digital watermarking techniques used are DWT and DCT with grayscale image and colour image and binary Image. The High security 128 bit cryptographic key is used for the information hiding and that cryptographic key is made of fingerprint and iris. Several attacks were done to ensure that the information hiding is more secure.