| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a peer-to-peer communication system for executing the communication of only content proper for circulation. <P>SOLUTION: A content server (101) registers information relating to content to be used for peer-to-peer communication in a relay server (111), and the relay server (111) verifies whether or not the registered content is problematic to circulation, and when the content is proper, the content server permits the registration of the information of the content in a content information storage part (215), and when the content is not proper, the content server rejects registration, and the content storage part (205) limits peer-to-peer communication with a content client to only the content whose registration is permitted by the relay server (111). <P>COPYRIGHT: (C)2007,JPO&INPIT |
