| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To consolidate a copy state of a device where encrypted content is copied, on a storage medium (e.g., SD card), thereby improving user convenience in data deletion. <P>SOLUTION: The present invention relates to a storage medium removably connected to a device for processing encrypted content. The storage medium stores thereon a content key of the encrypted contents, and a copy management list including a master flag containing information on a plurality of storage devices where the encrypted content is stored, and indicating a storage device storing master data of the encrypted content. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
