| 摘要 |
PURPOSE:To reject the accesses given from the persons except a due approver by designating an optional secret protection area of an electronic document including the secret areas and also the information on the access approver assigned to the designated area, turning these designated information into a table, and referring to this table when an access is confirmed. CONSTITUTION:It is checked whether an area to be protected is included in a produced document 12 or not. If so, a security control program 8 is called with a function key of a keyboard 9 or a security item is picked up out of the guidance column of a display device 1 with a mouse 10. Then an area covering the head character 13 through the final character 14 is designated with the keyboard 9 or the mouse 10 in a specific area where the accesses of the outsiders are not approved. This designated range is set to a security information table 21. At the same time, the characters included in a designated area of a memory 6 are ciphered and rewritten into the different codes. Then a mask is applied to the designated area of the device 1. If the information on an approver who can have an access to the designated area is received, this information is set an approver column 20. |
