| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an information printing device without anxiety in respect to security and with easy management in a device printing and displaying data per page. <P>SOLUTION: By concealing a key for decoding an encoded page in a page different from the page, the key can be managed only on a transmission side, security can be improved, and the management can be simplified. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
