COPYRIGHT DATA DISTRIBUTION SYSTEM, COPYRIGHT DATA DISTRIBUTION METHOD, AND COMMUNICATION PROGRAM FOR COPYRIGHT DATA DISTRIBUTION

摘要

PROBLEM TO BE SOLVED: To provide a technology of effectively preventing the illegitimate use of copyright data in the case of carrying out copyright data distribution.;SOLUTION: A commercial transaction system adopting a client and server configuration and utilizing the Internet prevents extraction of copyright data not only from communications but also from a computer and the illegitimate use of the extracted copyright data by encrypting a protocol on a transport layer for use in communication and managing the copyright data as encrypted information on the transport layer.;COPYRIGHT: (C)2006,JPO&NCIPI