A SVD-based fragile watermarking scheme for webpage authentication

As the Internet becomes a common tool in people´s daily life, more and more information is acquired through webpage. However, the website security has became an important issue in recent years. The tamper-proof of webpage is of great importance. Some watermarking schemes have been reported to solve this problem. For a webpage, we create the watermark according to the webpage tags by using SVD, and then embed them into the webpage If the extracted watermark from the received webpages is not the same as original watermark, then it shows that the webpage has been modified, and we can also locate the modified position. Experiments are performed on the proposed scheme and the results show that the proposed scheme can be a feasible and efficient tool for the tamper-proof of webpage. So our scheme plays an important role in the webpage authentication.