JP2000029838A - Password confirmation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify re-input work at the time of password erroneous input by correcting only an erroneous part and performing utilization as re-input without feeding a password from the first again at the time of feeding it again for erroneous input. SOLUTION: For the erroneous input, in the display of an input error (S7), it is reported to an inputting person that the input error is present by changing a character used for the turned letter of an inputted password. In this case, the system of inputting the password from the first which is a conventional system and the system by the partial correction of the erroneously inputted password can be selected by the judgement of the inputting person and respective processings are performed. In the case of selecting the system by the partial correction (S9), a correction screen is displayed, the required part of the turned password is corrected and re-input data are attained (S10). The correction is reflected on an input data buffer and entire character string comparison is performed (S11). Then, in the case that the password matches, the next processing is advanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for restricting a user's use qualification by password management, and a method for re-inputting by partially correcting a password when the password is erroneously input.

[0002]

2. Description of the Related Art In a conventional password confirmation method, for example, as described in Japanese Patent Application Laid-Open No. 3-174651, the contents of a password are displayed in response to an erroneous input, thereby confirming an erroneous portion to an input user. Although it was possible to do so, the password had to be entered from the beginning at the time of re-input, and the convenience at the time of re-input was not achieved.

[0003]

When inputting a password of a plurality of digits, even if an incorrect password is input in the middle of the input, a password such as "* (asterisk)" is displayed on the input screen. Since the password is hidden, the input person does not know that the password has been entered incorrectly. In addition, there is a problem that a password must be entered from the beginning when a password entry error occurs.

[0004]

In order to achieve the above object, according to the present invention, a password being input is monitored in real time, and a password corresponding to the user ID of the input user is monitored.
Performs comparison on a character-by-character basis. If the comparison result does not match during the input, the symbol used for the hidden character is changed to notify the input user that there is an input error. When re-entering a password, a method is available in which a password can be re-entered from the beginning according to the input user's selection, or a method in which an erroneously entered password is displayed to correct an erroneously entered portion.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a gist of the present embodiment. Hereinafter, a flow of processing for a password input error will be described.

The process is started from the start in FIG.

First, guidance display 1 for password input
In, input guidance screen 1 for password input
3 (see FIG. 2) is displayed to prompt for a password. The input password is monitored in real time in the process of one character input 2 of the password, and the input 1 is monitored.
The data is stored in the input data buffer 19 in character units.

Next, in the process of checking one character of the password 3, one character fetched into the input data buffer 19 is compared with one character of the corresponding position of the password data on the password table 20 corresponding to the user ID 4 ( (See FIG. 5). Here, if the compared characters match, the process proceeds to the next process. If the characters do not match, information as to what character of the password input has occurred is stored in the position counter 21 and the next process is performed. Proceed to.

The check 5 for the input of the Nth character after the occurrence of a mismatch is to prevent the location where the mismatch has occurred from occurring, and to inform the input user that the password entered immediately after the occurrence of the mismatch is incorrect. Not N characters (N is 2
Approximately three characters are considered appropriate, but use an arbitrary value based on the average password length of the system to be used. It is a thing that prevents unauthorized use.

In this process, if the position counter is not the initial value, it is determined that there is already an error in the previous input character,
The current input character position is compared with the position counter. If the current input character position−position counter = N, the process proceeds to the input error display 7 process. Also, when the input of the password is completed, the process proceeds to the input error display 7.

If the input of the password is completed in the determination 6 of the input completion of the password, all the characters of the input password match, and the process proceeds to the next processing. If the input is not completed, one character of the password is input. The process returns to step 2 and the flow of the process up to this point is repeated. In the display 7 of the input error, the character used for the hidden character of the input password is changed to notify the input user of the input error (see FIG. 3).

At this time, a method of inputting a password, which is a conventional method, from the beginning according to the judgment of the input user, and a method of partially correcting the incorrectly input password are selected, and each processing is performed. When the correction button 17 is selected, a correction screen 18 is displayed, a password which is hidden is displayed, and necessary portions are corrected and used as re-input data.

This correction is reflected in the input data buffer, and the entire character string is compared in the password check 11. If the passwords match, the process proceeds to the next process. If the passwords do not match, the process proceeds to the abnormal process. When the re-input button 16 is selected, the number of retries is checked. If the number of retries is equal to or less than 8, the display returns to the guidance display 1 for password input.
Proceed to error processing.

The above is the flow of processing for a password input error.

[0016]

According to the prior art, when an erroneous input of a password occurs, the contents of the erroneously input password are displayed, the input error is notified to the input user, and where the input user makes a mistake is identified. I knew, but I had to re-enter all the characters as passwords, even if only one was wrong.

In the present invention, the password being input is monitored in real time, and the password is compared with the password corresponding to the user ID of the input person on a character-by-character basis. If the comparison result does not match during the input, the symbol used for the hidden character is changed to notify the input user that there is an input error. When re-entering the password, the password can be re-entered from the beginning according to the input user's choice, or by displaying the incorrectly entered password, correcting only the incorrectly entered part, and using it as re-input data. This is to simplify the re-input operation at the time of erroneous input.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a processing flow for a password input error according to the present invention.

FIG. 2 is an image diagram of a guidance display for inputting a password.

FIG. 3 is an explanatory diagram showing screen transitions when an input error occurs.

FIG. 4 is an image diagram of a screen for correcting an incorrectly input password.

FIG. 5 is a schematic explanatory diagram of processing when a mismatch occurs during comparison of one character of a password.

[Explanation of symbols]

1. Processing to display guidance for password input 2.
Processing for inputting one character of the password, 3 processing for checking one character of the password, 4 processing for comparing each character of the input data and one character of the password, 5 determination of whether or not the input is the Nth character after a mismatch occurs. And processing to determine whether the input has been completed, 6: processing to determine whether the input of the password has been completed, 7: processing to display an input error screen, 8: processing to determine whether the number of retries is M or less,
9: Processing to select whether to reenter or correct the incorrectly input password, 10: Processing to display a guidance screen for inputting corrections, 11: Batching corrected passwords and passwords in the password table 12: processing for determining whether the password is correct, 13: image diagram of the input guidance screen, 14
... An image diagram showing the progress of input, 15... An image diagram when an error occurs in input data, 16... A button for selecting re-input, 17. A button for selecting correction of input data, 18. Screen image diagram,
19: an input buffer for storing a password keyed in by the input person, 20: a password table for associating a user ID with a password, 21 ... a position counter for storing the position of a character whose password does not match.

Claims (1)

[Claims] When a password is re-entered for an erroneous input at the time of inputting a password, the password is not re-entered from the beginning, but only an erroneous portion is corrected and used as a re-input. Password confirmation method.