Digital content management system, digital watermark embedding device, digital watermark detection device, program, and digital content management method

摘要

A digital content management system (1) includes a digital watermark embedding device (100) which generates a file having a file name used as a digital watermark, and embeds it into a digital content to be managed; a digital watermark information storage device (140) which stores, as digital watermark information, the file name used as the digital watermark embedded in the digital content by the digital watermark embedding device (100), while correlating it with identification information of the digital content having the digital watermark embedded therein; and a digital watermark detection device (150) which detects the file name used as the digital watermark, stored in the digital watermark information storage device (140), from the digital content to be verified, referring to the digital watermark information stored in the digital watermark information storage device (140).