Secure Web-Base Service in Content Distribution Network
Many web-based services involve distribution of content like digital audio, video, software, games, stock quotes, streaming presentations, and live news feeds through distributed networking technologies, like content distribution networks (CDNÃ¢â‚¬â„¢s), multicast networks, and peer-to-peer networks. Unfortunately, these modern distributed systems, designed to distribute content to a large group of users, also provide a platform for adversarial users to launch a myriad attacks with widespread consequences. Adversaries can masquerade as legitimate content providers to distribute malicious content possibly infected with worms, viruses, etc. Authenticating the content plays a crucial role in preventing these attacks. The task of protecting content is the responsibility of content providers. Today majority of mass-viewed content is dynamically generated and rich in multimedia that include combination of text, audio, still images, animation, video, and interactive content forms that are gathered from a myriad of sources, assembled and presented to the user. In such scenarios, malicious modification of content by malicious sources becomes a legitimate threat.