Text Based Content Protection and CAPTCHA Solution on the Basis of Font Parsing

Abstract

The production of information and communication technologies in the last few decades has strongly influenced the way information is gathered and processed, and hence raised concerns over privacy. With the advent of digital technologies, the ease of unauthorized copying of and access to digital content leading to commercial field has motivated the need for developing content protection technologies. This study is in area of protecting the web content from bots which are deployed to extract information from web, using the web-font technology. Web is an easiest medium to share information and thoughts, but it is not very safe to leave information on web. One of the important problems of leaving information on web is that various bots might sniff off the information and use the information in malicious manner. For example leaving email address on web might result in spam emails. In this study, I have researched about how fonts are created and how they work from various sources. I have studied w3c‟s CSS specification for @font-face and its cross browser compatibility. I have studied about current technologies being used in the area. It is hoped that this study will change the way the content in web is protected from bots. This research addresses three things: Font Parsing, Content Protection and CAPTCHA Solutions and implement them with the reference to an example using C# programming language and SQL database.