JPH03189852A - Updating system for password file - Google Patents

Abstract

PURPOSE:To give priority to perform log-in to a user using a computer everyday higher than that of a user using it sometimes by registering the registration of the user to be used or using again on the forefront of a password file when performing the log-in, log-out, or in log-in. CONSTITUTION:An individual information take-out part 1 takes out individual information designated by the password file 2 when performing the log-in, and writes it on the forefront of a temporary file 3. A general information take-out part 4 takes out the information other than that of a logging-in user from the password file 2, and writes it on the temporary file 3 so as to be added on the information written at the individual information take-out part 1. A switching part 5 sets the temporary file 3 as a new password file. Then, when the log-in is performed, the registration information of the user to be used or using in log-in or the log-out is registered again at the forefront of the password file 2. Thereby, it is possible to shorten a time required for the log-in for the user with high frequency in use.

Description

[Detailed Description of the Invention] [Summary] Regarding a password file update method to speed up login processing, users who use a computer every day can log in faster than users who do not use it often. The main computer has a password file in which the user names that can log in are registered, and when the user enters the user name and password for login, Used when logging in, logging in, or logging out in an information processing system that searches for a user name and allows the user to use the main computer when the entered password matches the password in the password file.

The configuration is such that the registered information of the user who is using or has been using the password is re-registered at the beginning of the password file.

[Industrial application field]

The present invention relates to a password file update method for speeding up login processing.

[Conventional technology]

FIG. 2 is a diagram for explaining the use of a UNIX computer. In the figure, 2 indicates a password file, 7 indicates a terminal, and 8 indicates a main computer. Furthermore, the mouth indicates pressing of a predetermined key.

The terminal 7 and the main computer 8 are connected via a line or the like. Although only one terminal 7 is shown in the figure, a plurality of terminals actually exist. The main computer 8 has an operating system called UNIX, and also has one password file 2.

The login command is displayed on the terminal screen.

With the gin: prompt displayed, the user enters a user ID, for example yama, after this prompt and presses a predetermined key (for example, return,
key or execution key), Pas.
The prompt ``sword:'' can be displayed. When the user keys in the password and presses the specified key, the password file 2 is searched, and if it matches the registered password, a % is displayed on the terminal screen.
The computer 8 is now available for use by the user. If you enter, for example, date after % and press the specified key, the current date, for example, oct 301, will be displayed on the terminal screen.
2: 30 is displayed and % is displayed on the next line.

Note that the password is not displayed on the screen. Also, % is called a UNIX computer prompt.

[Problem to be solved by the invention]

In the password file, information of, for example, about 800 7 degree users is registered. Since the password file is searched in order from the beginning, the time required for the search differs depending on where in the password file the information of the user attempting to log in is registered.

Therefore, although a user named ``Matsuo'' uses a computer every day, his information is registered toward the end of the password file, so it is difficult to use the information of a user who is registered toward the beginning of the password file. In comparison, the disadvantage was that it took a long time to log in.

The present invention was created in view of this point, and its purpose is to enable users who use a computer every day to log in faster than users who do not use it often. .

[Means for solving problems]

Therefore, in the password file updating method of the present invention, the main computer has a password file in which user names that can log in are registered, and when the user enters the user name and password for login, the password file is updated. When logging in, logging in or logging out in an information processing system that searches for user names sequentially from the beginning of the file and allows the user to use the main computer when the entered password matches the password in the password file. Use sometimes.

The feature is that the registered information of the user who is using or has been using the password is re-registered at the beginning of the password file.

[Effect]

For frequent users, password file searches are reduced and the time required to log in is reduced.

〔Example〕

FIG. 1 is a diagram showing an example of the flow of changing a password file according to the present invention. In the figure, 1 is a personal information retrieval unit, 2 is a password file, and 3 is a temporary
4 indicates a general information retrieval section, 5 indicates an exchange section, and 6 indicates a control section.

The personal information retrieval unit 1 performs a process of retrieving specified personal information from the password file 2 at the time of login and writing it at the beginning of the temporary file 3.

Information as shown in the figure is written in the password file 2. For example, yama:ppw8kj :88:10: :yama
In :/bin/csh, yama is user [D,
ppw8kj is encrypted password information, 88
:10 is the number of the file used by yama, yam
a:/bin/csh indicates that csh (c shell) under binO is started when yama logs in.

The temporary file 3 is an output file of the personal information retrieval section 1 and the general information retrieval section 4.

The general information retrieval unit 4 retrieves information about users other than the logged-in user from the password file 2 at the time of login,
The extracted information is written to the temporary file 3 so that the extracted information is added to the information written by the personal information extraction unit 1.

The exchange unit 5 performs processing to make a temporary file a new password file and to make the current password file a new temporary file.

The control unit 6 includes a personal information retrieval unit 1. General information retrieval section 4
．． It controls the exchange section 5. The control unit 6 performs the following processing, for example. Time period of the nth mouth (T (n
), for example, A, B.

If there are logins from three users called A,
, B, and C are stored. Then, it instructs the personal information extraction unit 1 to extract the personal information of the user whose password matches (assuming that all three users A, B, and C match) from the password file 2 and write it into the temporary file 3. do. Upon receiving the notification of the completion of processing from the personal information retrieval unit 1, the control unit 6 instructs the general public that information on users other than users A, B, and C should be retrieved from the password file 2 and written to the temporary file 3. Instructs the information retrieval unit 4. Upon receiving notification of the completion of processing from the general information retrieval unit 4, the control unit 6 instructs the exchange unit 5 to change the temporary file 3 to a password file and the password file to a temporary file. For example, in the next time period T(n+1), E.

When there is a login from users F and G,
The control unit 6 performs similar operations.

FIG. 1 is a diagram showing the flow of changing the password file when a user rDO named yama logs in. First, following the login command prompt, enter the user ID yama, and then enter the password following the password prompt to log in. Assuming that yama is the only user who logged in during that time, the personal information extraction unit 1 extracts the line containing the information of the logged-in user yama from the password file 2 and puts it at the beginning of the temporary file 3. Write the extracted line in .

Next, the general information extraction unit 4 extracts information other than the personal information of the user named yama extracted earlier from the password file 2 and adds it to the temporary file 3.

Finally, the exchange unit 5 changes the temporary file 3 to the password file 2.

In the above embodiment, the password file is updated at the time of login, but it is possible to update the password file while logging in (while using the computer). When % is displayed on the terminal screen, if you then enter finger and press the specified key, the user ID of the currently logged in user and user related information (for example, department, phone number, etc.) will be displayed. ) will be displayed on the terminal screen, but this will trigger the personal information of these users (for example, A, B, C, D) to be password-protected.
It may also be positioned at the beginning of the file. Also,
The password file may be updated upon logout.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the information of a newly logged-in user is placed at the beginning of the password file, which reduces the time it takes for users who frequently use computers to log in. This effect can be obtained.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of the flow of changing a password file according to the present invention, and FIG. 2 is a diagram for explaining the use of UNIX. DESCRIPTION OF SYMBOLS 1... Personal information retrieval unit, 2... Password file, 3... Temporary file, 4... General information retrieval unit, 5... Exchange unit, 6... Control unit, 7.・
・Terminal, 8...Main computer.

Claims (1)

[Claims] The main computer has a password file in which user names that can log in are registered, and when the user enters the user name and password for login, the computer inputs the user names in order from the beginning of the password file. In an information processing system that allows a user to use the main computer when a searched and entered password matches the password in a password file, a A method for updating a password file, which is characterized in that the registered information of the user who is currently using or using the password is re-registered at the beginning of the password file.