| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize a method for finding out an illegal copy content in a network, which has the effect of suppressing illegal copy by providing a plurality of monitoring points. <P>SOLUTION: In this method for finding out an illegal copy content in a network using a content protecting agent, a security manager who receives a request from a content holder distributes the content protecting agent having content searching function, content protective information calculating function and content protective information registering function to a plurality of content servers having content databases and content service function in addition to the above content protecting agent present in the network, whereby the expansibility of delivery session to monitoring form in the network is given. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
