Abstract: Many security primitives are based on hard mathematical problems. Using hard AI problems for security is emerging as an exciting new paradigm, but has been underexplored. Similarly due to rapid growth of internet and multimedia systems now it is easier to copyright the multimedia documents like audio, video, text, images etc. Video piracy has become an increasing problem particularly with the proliferation of media sharing through advancement of Internet services. Since digital video can be easily and perfectly duplicated and illegally distorted, appropriate schemes are needed to protect the rights of content owners or the integrity of the surveillance video. Now days there are many techniques available for providing security to multimedia documents. Video watermarking is an important emerging technique for these issues. In this paper, we present a new security primitive based on hard AI problems, namely, a novel family of graphical password systems built on top of Captcha technology, which we call Captcha as graphical passwords (CaRP) .In the system we also propose scene change detection (SCD) watermarking algorithm which is the most convenient and efficient method for copyright protection of video. This method is more robust to withstand with different types of video attacks like frame dropping, lossy compression. Here combination of both the Schemes is implemented so as to give enhanced security to the system. This makes our system robust against all type of attacks
Keywords: CaRP, SCD, Visual cryptography, watermark, image security.
Title: Enhanced Security in Online Database System Using Visual Cryptography and Water Marking
Author: Divya Sahay, Monalisa Merchant, Suleiman Sheikh, Rohan Shukla, Shubhangi Suryavanshi
International Journal of Computer Science and Information Technology Research
ISSN 2348-1196 (print), ISSN 2348-120X (online)
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