JPH01106245A - Volume map display system - Google Patents

Abstract

PURPOSE:To more effectively execute secret protection by deciding the file access right of also an output map information at the time of acquiring a volume map and quitting thee display of the name of a file having no access right from the map. CONSTITUTION:A file access right acquiring means 6 inputs the pass words of all files in a request volume acquired from a file access right table 12 by a file name identifying means 5. A file access right deciding means 7 decides whether an operator's pass word exists in the pass words of respective read files or not, and when the operator's pass word exists in respective files, the pass word is outputted as a volume map by a map information printing means 9. When the operator's pass word does not exist in anyone of files, the effect is printed out by an illegal access display means 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a volume map display method for acquiring file information existing in a volume of a storage device such as a magnetic disk or a magnetic tape in the form of a map. This invention relates to a volume map display method that strengthens file protection by applying security protection to the display of file information regarding files that require security protection.

[Conventional technology]

Conventionally, this type of volume map display method has been used to determine whether the operator making the display request is permitted to access the volume, that is, whether or not he or she has access rights using a registered name, code, or other password. The volume map was displayed only in response to an operator's request that was permitted by judgment, and all files stored in the volume were displayed on the volume map.

[Problem that the invention seeks to solve]

The conventional volume map display method described above displays the volume map only by determining the access rights to the volume, so all volume map information is displayed regardless of the access rights to individual files stored in the volume. This had the disadvantage that even if there was a file that required security protection, it would ignore this and display the information.

[Means for solving problems]

The volume map display method of the present invention includes a volume access right table that stores volume access right information in advance, and a volume access right table that acquires volume access right information for a volume for which a volume map is to be obtained from the volume access right table. a volume access right determining means for determining whether or not the right to acquire a volume map for the volume obtained by the volume access right acquiring means is obtained; volume access means for acquiring data of the requested volume from the volume; file information identification means for identifying file data from the data acquired from the volume; and file name identification means for acquiring a file name from the obtained file data. a file access right table in which file access right information for each file is stored in advance; a file access right acquisition means for acquiring access right information from the file access right table; A file access right determining means for determining whether or not there is a right to know the file name, an unauthorized access displaying means for indicating that a file for which there is no file access right exists, and according to the outputs of the file access right determining means and the unauthorized access displaying means. and a volume map information printing means for printing a volume map or an unauthorized display.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a flowchart showing one embodiment of the volume map display method of the present invention. Volume access right information acquisition means 1 receives the volume map display request and requested volume name input from the operator.

The volume access right determination means 2 reads out the password corresponding to the requested volume name from the passwords that are access right information regarding each volume stored in advance in the volume access right table 10 based on the operator's password, etc. It is determined whether or not the operator's password exists among the passwords regarding the requested volume, and if there is a password, data regarding the requested volume is read from the volume 11 by the volume access means 3, and from among the data, the file information identification means 4, only the file information is selected, and all file names in the requested volume read by the file name identification means 5 are obtained from the file information. The file access right acquisition means 6 extracts the file name identification means 5 from the file access right table 12 that stores passwords, which are information for security protection, regarding individual files.
Reads the passwords of all files in the requested volume obtained by . The file access right determining means 7 determines whether or not the operator's password is included in the password of each read file. If the operator's password is included in each file, the map information printing means 9 prints out the printed information, that is, the volume map. If the operator does not have a password for any file, that is, it is determined that the operator does not have access rights, the unauthorized access display means 8 will display a message such as "There are files on the volume that you cannot access. This message will be printed out, such as "No display will be made."

Note that if the volume access right determining means 2 determines that there is no access right, the process ends. Also,
If the file information identifying means 4 identifies that there is no file in the volume, the process is similarly terminated.

In the above embodiment, the access rights for all files in the requested volume were determined and then the printing process was performed. You can achieve the same goal by doing this.

〔Effect of the invention〕

As explained above, the present invention determines file access rights for the output map information when acquiring a volume map, and does not display file names from the map for files for which there is no access rights. Confidentiality can be more effectively protected by hiding information that users do not have the right to obtain.

[Brief explanation of the drawing]

FIG. 1 is a flow chart showing the processing of the present invention. 1 is a volume access right information acquisition means, 2 is a volume access right determination means, 3 is a volume access means,
4 is a file information identification means; 5 is a file name identification means;
6 is a file access right acquisition means; 7 is a file access right determination means; 8 is an unauthorized access display means; 9-digit map information printing means; 10 is a volume access right table;
11 is a volume, and 12 is a file access right table.

Claims (1)

[Claims] In the volume map display method for storage devices,
a volume access right table storing volume access right information in advance; a volume access right acquisition means for acquiring volume access right information for a volume for which a volume map is to be obtained from the volume access right table; and the volume access right. a volume access right determining means for determining whether or not the user has the right to acquire a volume map for the volume obtained by the acquiring means; A volume access means for acquiring, a file information identification means for identifying file data from data acquired from the volume, a file name identification means for acquiring a file name from the obtained file data, and file access for each file. a file access right table in which rights information is stored in advance; a file access right acquisition means for acquiring access right information from the file access right table; and a determination as to whether or not there is a right to know the file name based on the obtained access right information. an unauthorized access display means for displaying the existence of a file for which there is no file access right; and a volume for printing a volume map or an unauthorized display according to the outputs of the file access rights determination means and the unauthorized access display means. 1. A volume map display method comprising: map information printing means.