| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a playback apparatus for securely handling a resource file without providing a dedicated buffer area. <P>SOLUTION: A content check section 14 decrypts the encrypted resource file stored in a file cache 13 and writes the decrypted resource file over the encrypted resource file in the file cache 13. Then, the content check section 14 reads the decrypted resource file from the file cache 13. and delivers the same to a playback processing section 15. Further, the content check section 14 re-encrypts the decrypted resource file, and writes the encrypted resource file over the decrypted resource file in the file cache 13. Then, the content check section 14 copies the encrypted resource file into an external storage device 17. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
