| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a flexible system for protecting and managing digital information with diversity by especially supporting a plurality of element technologies, concerning a system for protecting and managing digital information such as file data on media and data on a memory. <P>SOLUTION: A shipping origin(Lang Edge) prepares a D-Lib file, an S-Lib file and a development origin disclosure key generation tool, and ships them to the development origin in the media format of a CD-ROM. At the development origin, a manager generates a development origin disclosure key pair, and prepares a request for library signature by the development origin disclosure key, and receives the supply of a library signature-printed C-PKC basic part file, and generates a C-PKC expended part file. Also, an S-Lib file is generated, and integrated into the system of a user by an developer, Thus, it is possible to easily change the integrated C-PKC extended parts, and to easily perform the update of an encryption module or the like or the restriction of its use by changing a certificate. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
