Research on mobile agent-based digital watermark tracking system and communication security

With the development of Internet, network publishing has become the new trend of publishing industry. In the network environment, the communication and copy of digital contents become more and more convenient, which leads to the pirate problem of digital works. The conventional method of digital copyright protection is to search the digital works information with search engine, and download them to a server where all digital works would be authenticated. This method might lead to the overload of digital watermark server. A new digital watermark tracking system based on mobile agent is proposed, which can authenticate the digital watermark of digital works directly in the remote mainframe by using the distribution and mobile characters of mobile agent. Therefore the efficiency of copyright protecting and tracking is greatly improved. The digital watermark tracking agent communication language, communication security and migration rules are also discussed in this paper.