JP2002222167A - Password processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make release of an inhibition condition for an equipment incapable, even under the condition where a code is allowed to be repeatedly input in plural digits. SOLUTION: One or plural dummy digits are set in addition to respective digits constituting a specified password. An indication is imparted to promote an input the one or plural dummy digits. The code is input in the one or plural dummy digits according to the indication. When the code is input in the one or plural dummy digits, it is determined that an input password is not consistent with the specified password.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a password processing device.

[0002]

2. Description of the Related Art Construction machines are very expensive and need to be effectively protected from theft.

Accordingly, various password processing devices have been developed which maintain a locked state of a starting function or a working function of a construction machine unless a legitimate user of the construction machine inputs a specific password such as a personal identification number. .

[0004] For example, in the invention described in Japanese Patent Application Laid-Open No. 9-50584, a ten-key input device is provided in a cab of a construction machine, and a specific password is input to the ten-key input device. function)
The lock state is released to operate the hydraulic system.

[0005]

The construction machine takes a lot of time and trouble to move, so that it is likely to be left at the work site for a long time. In addition, construction machinery work sites are often remote. For this reason, when the password processing device is provided in the construction machine, it is difficult for others to monitor the code input operation. Therefore, in the construction machine, the code input operation is repeatedly performed by a person other than a legitimate user, and eventually, a code constituting a specific password previously set in the password processing device and a person other than a legitimate user are used. Therefore, there is a possibility that the locked state of the starting function or the working function of the construction machine is released by a person other than a legitimate user.

As described above, in the prior art, the input of a plurality of digits is repeatedly performed by a person other than a legitimate user of the device, so that the prohibited state of the device is released by a person other than the legitimate user. Problem arises.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problem that it is impossible to release a prohibited state of a device even in a situation where a code can be repeatedly input to a plurality of digits.

[0008]

Therefore, in the first invention of the present invention, in order to achieve the above-mentioned solution, a specific password consisting of one or more digits is set in advance, and In the password processing device that determines that the input password does not match the specific password, a code is input to the digits configuring the password of the specific password. To set one or more dummy digits,
Instruction means for giving an instruction to input a code to the one or more dummy digits; and when the code is input to the one or more dummy digits according to the instruction, the input password and the identification And determining means for determining that the password does not match.

According to a second aspect of the present invention, in the first aspect, the indicating means is a display means for displaying the one or more dummy digits.

According to a third aspect of the present invention, in the first aspect, the instruction means is a voice output means for giving an instruction to input to the one or more dummy digits by voice. I do.

According to a fourth invention, in the first invention, the second invention or the third invention, a changing means for changing an arrangement relation between each digit constituting the specific password and the one or more dummy digits. Is further provided.

The first invention, the second invention and the third invention will be described with reference to FIGS.

According to the first invention, the second invention, and the third invention, in addition to each digit constituting a specific password,
One or a plurality of dummy digits are set (storage units 16a and 16b in FIG. 1 and telephone banking storage device 112 in FIG. 10). Then, an instruction for prompting an input to one or a plurality of dummy digits is given (the display means 2 in FIG. 1 and the telephone banking terminal 111 in FIG. 9). In accordance with this instruction, a code is input to one or a plurality of dummy digits (switches 3 to 12 in FIG. 1 and push switch 116 of telephone 110 in FIG. 9). When a code is input to one or more dummy digits, it is determined that the input password does not match the specific password (the determination unit 17 in FIG. 1 and the determination for telephone banking in FIG. 9). Apparatus 1
13).

Therefore, according to the first invention, the second invention, and the third invention, as long as the code is input to the dummy digit in accordance with the instruction prompting the input to the dummy digit, the prohibited state of the device is released. Therefore, it is practically impossible to cancel the prohibited state of the device even in a situation where a code can be repeatedly input to a plurality of digits.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a password processing device according to the present invention will be described below with reference to the drawings. In this specification, the term "password" is used to mean a combination of numerical values, characters, symbols, and the like consisting of a plurality of digits that can be known only by a valid user.

First, a first example of the password processing apparatus of the present invention will be described.
Will be described with reference to FIGS. In the first embodiment, a monitor panel provided in a cab of a construction machine is assumed as the password processing device.

As shown in FIG. 1, the password processing apparatus 1 is composed of a housing, and is roughly divided into a display screen 2 provided outside the housing and switches 3 to 15 provided also outside the housing.
And storage units 16a and 16b provided inside the housing, and a determination unit 17 also provided inside the housing.

The monitor panel as the password processing apparatus 1 has a function of displaying on the display screen 2 and a function of inputting operation contents by pushing and operating the switches 3 to 15. The state of the construction machine, such as the temperature of the cooling water of the engine of the construction machine and the amount of fuel, is detected by a sensor, and the state of the construction machine is displayed on the display screen 2 of the password processing device 1. That is, the password processing device 1 has a monitor function.
By operating the switches 3 to 15 on the password processing device 1, a control signal corresponding to the operation content is output to a controller for controlling the traveling device and the working device of the construction machine, and the working mode and the traveling speed are selected. You. It is also possible to set and adjust the internal parameters of the controller. That is, the password processing device 1 has a control function. Further, the password processing device 1 has a start function lock function that does not start the engine unless a user password stored in advance is input, that is, maintains a prohibited state in which the start function of the construction machine is locked. A work function lock function may be provided instead of the start function lock function. In this case, the hydraulic fluid discharged from the hydraulic pump is not supplied to the hydraulic actuator for the working machine unless the user password stored in advance is input, that is, the working function of the working machine is kept in a locked state.

The switches 3 to 15 are provided on a switch panel 18. When the switches 3 to 15 are pushed, signals corresponding to the operation contents are input to a controller (not shown). The controller controls a traveling device and a working device of the construction machine according to the operation content. The controller controls the display on the display screen 2 of the password processing device 1 according to the operation content.

Switches 3 to 12 among switches 3 to 15
Changes the input data content according to the display content of the display screen 2 of the password processing device 1. When the display content of the display screen 2 indicates that the user password and the service password are to be input to each digit, the switches 3 to 12 function as numeric keys for inputting data of numerical values “0” to “9”, respectively. I do. That is, switch 3
Press to enter “0”, and press switch 4 to enter “1”
Is input, when switch 5 is pressed, "2" is input, when switch 6 is pressed, "3" is input, when switch 7 is pressed, "4" is input, and when switch 8 is pressed, "5" is input. When the switch 9 is pressed, “6” is input, when the switch 10 is pressed, “7” is input, when the switch 11 is pressed, “8” is input, and when the switch 12 is pressed, “9” is input. . That is, the switches 3 to 12 input a numerical value to each digit of the user password and the service password displayed on the display screen 2.

When the contents displayed on the display screen 2 indicate other than the numerical input, the switches 3 to 12 function as switches for inputting data corresponding to the characters and illustrations shown in the switches.

The switches 13 and 14 are cursor keys for selecting display contents on the display screen 2. The switch 15 is an enter key.

Here, the user password is a specific password that can be known only by a legitimate user of the construction machine (including a person permitted by the legitimate user). A service password, which will be described later, is a specific password that can be checked and maintained by the construction machine, and can be known only by a service person authorized by a valid user. In the first embodiment, it is assumed that the user password and the service password are combinations of numerical values such as “1” and “2” and blank spaces. Note that the user password and the service password may be a combination of a symbol such as “*” and a blank, and “a”, “a”, “a”
Or a combination of characters and blanks. Further, a combination of any combination of these numerical values, symbols, and characters and a blank may be used. In short, it is assumed that the user password and the service password are assigned codes such as numerical values, symbols, and characters, and blank spaces. Of course, a sign such as a numerical value, a symbol, or a character and a blank may be assigned to one of the user password and the service password.

It is assumed that a four-digit user password that can be known only by a legitimate user of the construction machine is stored in the storage unit 16a in advance. For example, in the storage unit 16a, the first digit is “1”, the second digit is “3”, the third digit is “blank”, and the fourth digit is “blank” in the order from the highest digit in the user password. Is stored in advance.

On the other hand, it is assumed that a six-digit service password that only a service person can know is stored in the storage unit 16b in advance. For example, in the storage unit 16b, the first digit is “2”, the second digit is “4”, the third digit is “6”, the fourth digit is “8”, and the fifth digit is five digits in order from the highest digit in the service password. It is assumed that the data is stored in advance so that the eye is “blank” and the sixth digit is “blank”.

The display screen 2 is a display unit which sequentially transitions to the next screen in accordance with the operation of the switches 3 to 15 and changes the display content, and is composed of a liquid crystal or the like. However, as described above, if the user password is not correctly input on the user password input screen 30, which is the top screen of the display screen 2, the screen does not transition to the next screen.

When the display screen 2 is transitioning to the user password input screen 30, the judgment unit 17 stores the numerical value input by operating the switches (ten keys) 3 to 12 and the storage unit 16.
The upper two digits “1” and “3” of the user password stored in “a” match each digit, and correspond to one or both of the lower two digits of the blank of the user password. It is determined whether a numerical value has been input. When the display screen 2 is transiting to the service password input screen 50, the determination unit 17 determines whether the switches (numeric keys) 3 to
12 and the upper four digits "2" of the service password stored in the storage unit 16b,
It is determined whether "4", "6", and "8" match for each digit, and whether a numerical value has been input corresponding to one or both of the lower two blank spaces of the service password. I do. The determination unit 17 also determines whether the service password input screen 5
It is determined whether or not the enter key 15 has been erroneously pressed during the input of the numerical values of the upper four digits on 0.

Next, the operation of the password processing apparatus 1 shown in FIG. 1 will be described with reference to FIGS. 2 to 7A, 7B, and 7C. Here, the description will be made on the assumption that a numerical value is input corresponding to both of the user password and the lower two digits of the service password. FIG. 2 is a flowchart showing a procedure of a process for releasing the locked state of the starting function or the work function of the construction machine. FIGS. 3A to 7C show transitions of the display screen 2 in FIGS. It is a figure showing a situation.

That is, when the power of the construction machine is turned on,
That is, when the starter switch is operated to the ON position,
A user password input screen 30 is displayed on the top screen of the display screen 2 as shown in FIG. On the user password input screen 30, digit display sections 30a and 30b are displayed on the left side of FIG. 3 corresponding to the upper two digits of the user password, "1" and "3", and the lower two digits of the user password. Corresponding to the blanks of the dummy digit display sections 30c and 30d.
Are displayed on the right side in FIG. In FIG. 3, the dummy digit display units 30c and 30d are indicated by diagonally shaded digit display units 30.
a and 30b. However, in practice, the digit display portions 30a, 30b and the dummy digit display portions 30c, 30d have the same color, pattern, shape, etc., and correspond to the dummy digit display portions 30c, 30d to persons other than authorized users. To enter a numerical value. Thus, it becomes easier for a person other than the legitimate user to input a numerical value corresponding to the dummy digit display sections 30c and 30d. First, the digit display section 30a corresponding to the first digit of the user password blinks to prompt the input of the first digit. When the display screen 2 transits to the user password input screen 30, the switches 3 to 12 function as numeric keys. In the present embodiment, the digit display units 30a and 30b and the dummy digit display units 30c and 30d are made to blink so that the digit display units 30a and 30b and the dummy digit display units 30c and 30d are blinked.
prompting the user to input a numerical value to d.
The display of c and 30d is distinguished from prompting a person other than the legitimate user to input a numerical value into the dummy digit display units 30c and 30d. However, as in the present embodiment, if the dummy digit display portions 30c and 30d are made to blink in the same manner as the digit display portions 30a and 30b, the input of the numerical value to the dummy digit display portions 30c and 30d by a person other than a valid user. Will be further encouraged.

Then, a legitimate user operates the switch 4 to input the first digit number "1" of the user password corresponding to the digit display section 30a. On the other hand, a person other than the legitimate user pushes the switches 3 to 12 to operate the digit display unit 3.
Enter the value corresponding to 0a. After that, switches 3 to 12
Each time the button is pressed, the blinking part moves sequentially to the digit display part 30b and the dummy digit display parts 30c and 30d to prompt the input of the numerical value of the corresponding digit. The legitimate user operates the switch 6 as the blinking part moves sequentially to the digit display part 30b and the dummy digit display parts 30c and 30d, and the value “3” corresponding to the second digit of the user password is displayed. "And enter
Do not enter a numerical value corresponding to the blank of the third and fourth digits of the user password. On the other hand, a person other than a legitimate user has the blinking part in the digit display part 30b, the dummy digit display parts 30c and 30d.
The switches 3 to 12 are depressed and operated in accordance with the sequential movement to the digit display portion 30b, the dummy digit display portions 30c and 30d.
Enter the numerical values in order. However, in the first embodiment, the digit display units 30a, 30b and the dummy digit display units 30c, 30
It is assumed that a numerical value input by a valid user or a person other than the valid user is not displayed in d. Of course, it is also possible to display the entered numerical value (step 20).
0).

In the judgment section 17, the switch (numeric keypad) 3
To 12 and the upper two digits "1" and "3" of the user password stored in the storage unit 16a.
Are determined for each digit, and no numerical value is input (corresponding to a blank state) corresponding to the lower two blanks of the user password (step 20).
0).

As a result, the switches (numeric keys) 3 to 12
And the upper two digits "1" and "3" of the user password stored in the storage unit 16a match for each digit, and correspond to the lower two digits of the user password. If the condition that no numerical value has been input is determined (YES in step 200), the user password input screen 30 is used to enter the information shown in FIGS. 7 (a), 7 (b) and 7 (c).
(Step 206). The transition to the monitor screens 80, 81, 82 which are the next screens shown in FIG. In other words, when a legitimate user inputs a user password, it is allowed to transition to the next screens, that is, monitor screens 80, 81, and 82. Further, a lock release signal is output, and the locked state of the start function or the work function is released (step 207). If the engine has not been started yet, a transition is made from the monitor top screen 80 shown in FIG. 7A to a monitor pre-start screen 81 shown in FIG. 7B. When the engine is started, the monitor pre-start screen 81 shown in FIG.
To the monitor start screen 82 shown in FIG. Thus, the state of the construction machine can be monitored on the display screen 2 of the password processing device 1. By operating the switches 2 to 15, the display screen 2 can be transited to a control screen (not shown). On this control screen, a work mode and a running speed are selected, and a traveling device or a working device of a construction machine is displayed. It can control and set and adjust the internal parameters of the controller.

On the other hand, the determination unit 17 determines that a numerical value has been input corresponding to the blank space of the lower two digits of the user password (step 200). As a result, when it is determined that a numerical value has been input corresponding to the lower two digits of the user password (NO in step 200), the input user password and the user password stored in the storage unit 16a are stored. Are determined to be mismatched,
The blinking part on the user password input screen 30 shifts again to the digit display section 30a corresponding to the first digit of the user password, prompting the input of the correct user password,
The display screen 2 maintains the state of the user password input screen 30, which is the top screen. As described above, according to the present embodiment, when the code is input to the dummy digit, it is possible to determine that the set specific password and the input password do not match, so that the determination of the password mismatch is quickly performed. be able to.

Of course, the entered user password and
It is also possible to perform a process of comparing the user passwords stored in the storage unit 16a for all the digits and then determine a mismatch of the passwords.

In this case, the judgment section 17 operates the switches (numeric keys) 3 to 12 to input a numerical value and the storage section 16a.
Condition that the upper two digits “1” and “3” of the user password stored in the user password do not match, or a condition that a numerical value is input corresponding to the blank of the lower two digits of the user password. If one or both conditions are determined (NO in step 200),
The blinking part on the user password input screen 30 shifts again to the digit display section 30a corresponding to the first digit of the user password, prompting the input of the correct user password,
The display screen 2 maintains the state of the user password input screen 30, which is the top screen. As described above, according to the present embodiment, when a valid user has forgotten the user password or a person other than the valid user is trying to input the user password, the screen is changed to the next screen, that is, the monitor screens 80, 81, and 82. Do not tolerate that. Also, transition to the control screen is not permitted. For this reason, the state where the function of the password processing device 1 is locked can be maintained. Further, since the lock release signal is not output, the state in which the start function or the work function is locked is maintained.

As described above, according to the present embodiment, the locked state is not released as long as a person other than a legitimate user inputs a code to a dummy digit in accordance with an instruction prompting input to the dummy digit. Therefore, it is substantially impossible to release the locked state even in a situation where a code can be repeatedly input to a plurality of digits.

Only when the legitimate user forgets the user password, the user password can be reproduced by the following processing.

That is, when it is determined that the user password is not correctly input, the legitimate user calls a service person. The serviceman operates the switches 3 to 12 in a specific pattern that only the serviceman can know.
The specific operation pattern is, for example, a password for pressing a specific switch for a specific number of times or a password for pressing a plurality of specific switches at the same time. Note that, in the first embodiment, a person other than a service person switches 3 to 3.
It is also assumed that this particular operation pattern can be known by arbitrarily repeating the operation of 12. Switch 3 ~
12 is operated in a specific operation pattern (step 2
01 (YES), the screen transitions from the user password input screen 30 of FIG. 3 to the service menu screen 40 shown in FIG. On the service menu screen 40, service menus "00" to "03" are displayed. The service menu screen 40 can be scrolled (step 202).

As shown in FIG. 4, "03 password setting" is displayed in each service menu on the service menu screen 40. When the display screen 2 transits to the service menu screen 40, the switches 3 to 12 function as numeric keys. Then, when the switches 3 and 12 are sequentially pressed, “0” and “9” are input, and “03 password setting” on the service menu screen 40 is selected.
When "03 password setting" is selected on the service menu screen 40 and the enter key 15 indicating selection confirmation is pressed (YES in step 203), FIG.
Is changed from the service menu screen 40 to the service password input screen 50 shown in FIG.

On the service password input screen 50,
The upper four digits of the service password "2", "4",
Digit display sections 50a, 50b, 5 corresponding to "6" and "8".
0c and 50d are displayed on the left side of FIG. 5, and dummy digit display sections 50e and 50f are displayed on the right side of FIG. 5 corresponding to the lower two blanks of the service password. Further, an ENT display section 5 is displayed on the service password input screen 50.
0 g is displayed. In FIG. 5, the dummy digit display units 50e and 50f are indicated by diagonally shaded digit display units 50a and 50f.
0b, 50c, and 50d. However, in practice, the digit display portions 50a, 50b, 50c, and 50d and the dummy digit display portions 50e and 50f have the same color, pattern, shape, and the like, so that a person other than the service person can display the dummy digit display portions 50e and 50e.
The user is prompted to input a numerical value corresponding to 0f. Thus, the dummy digit display sections 50e, 5e and 5
Numerical values are easily input corresponding to 0f. First, the digit display section 50a corresponding to the first digit of the service password flashes to prompt the input of the first digit. When the display screen 2 has transitioned to the service password input screen 50, the switches 3 to
Reference numeral 12 functions as a numeric keypad. In this embodiment,
The digit display units 50a, 50b, 50c, 50d and the dummy digit display units 50e, 50f are made to blink so that the digit display units 50a, 50b, 50c, 50d, and the dummy digit display unit 50 are blinked.
e, 50f, and prompting a person other than a service person to enter a numerical value into the dummy digit display unit 50e, 50f by displaying the dummy digit display unit 50e, 50f. I'm different. However, as in the present embodiment, the digit display units 50a, 50b, 50c, 5
By blinking the dummy digit display portions 50e and 50f in the same manner as in the case of 0d, the dummy digit display portion 50 by a person other than the service person can be displayed.
Input of numerical values to e and 50f is further prompted.

Then, the serviceman operates the switch 5 to input the first digit number "2" of the service password corresponding to the digit display section 50a. On the other hand, a person other than the service person operates the switches 3 to 12 to input a numerical value corresponding to the digit display section 50a. After that, switch 3-1
Each time push operation 2 is performed, the blinking portion is displayed in the digit display section 50b, 50
The display sequentially moves to c and 50d and the dummy digit display sections 50e and 50f to prompt the input of the numerical value of the corresponding digit. The service person operates the switches 7, 9, and 11 as the blinking part moves sequentially to the digit display units 50b, 50c, and 50d and the dummy digit display units 50e and 50f, and operates the upper four digits of the service password. Numerical values “4”, “6”, and “4” correspond to the second, third, and fourth digits of the numerical values “2”, “4”, “6”, and “8”.
While "8" is sequentially input, no numerical value is input corresponding to the blanks of the fifth and sixth digits of the service password. On the other hand, for persons other than service personnel, the blinking part is indicated by the digit display section 50.
b, 50c, 50d, and the dummy digit display sections 50e, 50f. The switches 3 to 12 are pushed and operated in accordance with the sequential movement to the digit display sections 50b, 50c, 50d, and the dummy digit display sections 50e, 50f. Are sequentially input. However, in the first embodiment, it is assumed that the digit display units 50a, 50b, 50c, and 50d and the dummy digit display units 50e and 50f do not display a numerical value input by a service person or a person other than the service person. Of course, it is also possible to display the input numerical value.

Then, the digit display section 50 is provided by the service person.
In d, the fourth digit number “8” of the service password is input. Alternatively, a person other than the service person inputs the numerical value of the sixth digit into the dummy digit display section 50f. When a numerical value is input to the dummy digit display unit 50f by a person other than the service person, the ENT display unit 50g blinks to urge that the input is confirmed.

Next, when the enter key 15 is depressed, the judgment unit 17 operates the switches (numeric keys) 3 to 12 to input the numerical value input and the upper four digits of the service password stored in the storage unit 16b. ”,“ 4 ”,“ 6 ”,“ 8 ”
Matches with each digit, and the lower 2
It is determined that a numerical value has not been input corresponding to the blank space of the digit. The determination unit 17 determines that the enter key 15 has not been erroneously pressed during the input of the numerical values of the upper four digits on the service password input screen 50 (step 204).

As a result, the switches (numeric keys) 3 to 12
And the upper four digits of the service password stored in the storage unit 16b, such as “2”, “4”,
The condition that “6” and “8” are matched for each digit, the condition that no numerical value is entered corresponding to the lower two digits of the service password, and the condition that the upper four digits are entered When three conditions, that is, the condition that the enter key 15 is not pressed by mistake during the operation, are determined (step 2
04 (YES), the screen transitions from the service password input screen 50 of FIG. 5 to the password setting selection menu screen 70 shown in FIG. 7 (step 205). That is, when the service person inputs the service password, it is allowed to transition to the password setting selection menu screen 70 which is the next screen.

However, when a numerical value is input corresponding to the lower two digits of the blank of the service password (step 20).
4), it is determined that the input service password and the service password stored in the storage unit 16b do not match, and the service password input screen 50 is displayed.
The upper blinking portion again shifts to the digit display section 50a corresponding to the first digit of the service password, prompting the input of a correct service password, and the display screen 2 maintains the state of the service password input screen 50 again.

As described above, when the code is input to the dummy digit, it is possible to determine that the specific password that has been set and the input password do not match. Therefore, it is possible to quickly determine that the passwords do not match. .

Of course, it is also possible to execute a process of comparing the input service password with the service password stored in the storage unit 16b for all the digits, and then determine the mismatch of the passwords.

In this case, the switches (numeric keys) 3 to
12 and the upper four digits "2" of the service password stored in the storage unit 16b,
The condition that "4", "6" and "8" do not match,
One of a condition that a numerical value is input corresponding to the lower two digits of the service password and a condition that the enter key 15 is pressed by mistake during the input of the upper four digits; Alternatively, if a plurality of conditions overlap (NO in step 204), the blinking part on the service password input screen 50 shifts to the digit display section 50a corresponding to the first digit of the service password again, and the correct service password is displayed. Prompts the user to enter the information and displays screen 2
Maintains the state of the service password input screen 50 again. That is, when a person other than the service person is about to enter the service password, the transition to the password setting selection menu screen 70 as the next screen is not permitted.

As shown in FIG. 6, on the password setting selection menu screen 70, the user password is reproduced (displaying the current user password, changing the user password), turning on / off the password function, and changing the service password. Menu is displayed. On the password setting selection menu screen 70, a menu for reproducing the user password is selected.

As a result, the serviceman can know the user password. If the user inputs the user password again with the switches (numeric keys) 3 to 12 on the user password input screen 30 shown in FIG. The upper two digits “1” and “3” of the user password stored in the storage unit 16b match with each digit, and no numerical value is input corresponding to the lower two digits of the blank of the user password. (Step 2
00 determination YES). Therefore, it is permitted to transition from the user password input screen 30 shown in FIG. 3 to the monitor screens 80, 81 and 82 which are the next screens shown in FIGS. 7 (a), 7 (b) and 7 (c) (step 206). . Further, a lock release signal is output, and the locked state of the start function or the work function is released (step 207).

When the password is known to a person other than the authorized user, the user password can be arbitrarily changed. That is, by arbitrarily changing the arrangement relationship between the digit to be input with the numerical value and the dummy digit, it is possible to make it difficult to release the locked state again.

As described above, according to the first embodiment, the user password is stored in the storage unit 16a in advance such that the lower two digits of the four digits of the user password are blank. Then, an instruction for prompting input to four digits is given using the display screen 2.

Therefore, according to the first embodiment, even if the four-digit numerical value is repeatedly input on the password input screen 30 and all combinations of the four-digit numerical values are completed, the starting function of the construction machine or It becomes impossible to release the locked state of the work function.

Although the first embodiment has been described on the assumption that a numerical value is input in correspondence with both of the lower two digits of the user password and the service password, the user password or the service password is of course required. The present invention can also be applied to a case where a numerical value is input corresponding to one of the lower two digits of the password.

In the first embodiment, the third and fourth digits of the user password are stored so as to be blank, and the fifth and sixth digits of the service password are stored so as to be blank. However, the present invention is not limited to this, and both the user password and the service password can be stored such that one or more arbitrary digits are left blank.

In the user password input screen 30 shown in FIG. 3, the digit display sections 30a and 30b are displayed on the left side in FIG. 3, and the dummy digit display sections 30c and 30d are displayed in FIG.
Although displayed on the middle right side, the positions where the digit display sections 30a and 30b and the dummy digit display sections 30c and 30d are displayed are not limited to FIG. FIG. 8 is a modification of FIG. Note that the digit display units 90a and 90d in FIG. 8 correspond to the digit display units 30a and 30 in FIG.
b. Also, the dummy digit display sections 90b, 90 in FIG.
“c” corresponds to the dummy digit display sections 90b and 90c in FIG.

That is, like the user password input screen 90 shown in FIG. 8, the digit display section 90a is displayed on the left side in FIG. 8, the digit display section 90d is displayed on the right side in FIG. 8, and the dummy digit display section 90b is displayed. , 90c may be displayed at the center in FIG.

Further, in the service password input screen 50 shown in FIG. 5, the digit display sections 50a, 50b, 50c, 5
0d is displayed on the left side in FIG. 5 and the dummy digit display sections 50e and 50f are displayed on the right side in FIG. 5, but the digit display sections 50a, 50b, 50c and 50d and the dummy digit display section 5 are displayed.
The positions where 0e and 50f are displayed are not limited to FIG.
FIG. 9 is a modification of FIG. Note that the digit display unit 60 shown in FIG.
a, 60b, 60e, and 60f are the digit display units 50a,
These correspond to 50b, 50c, and 50d. Also, the dummy digit display units 60c and 60d in FIG.
e, 50f.

That is, like the service password input screen 60 shown in FIG. 9, the digit display units 60a and 60b
The display may be on the middle left side, the digit display units 60e and 60f may be displayed on the right side in FIG. 9, and the dummy digit display units 60c and 60d may be displayed on the center in FIG.

As shown in FIG. 13, the dummy digits can be arranged so that the digits to which the numerical values are to be inputted are sandwiched by the dummy digits.

In the first embodiment described above, an instruction for prompting the input of a preset password to each digit is given using the display screen 2, but it may be given by voice.

Therefore, a second embodiment in which an instruction prompting the input of a preset password to each digit is given by voice will be described with reference to FIGS. It is assumed that the password processing device of the second embodiment is applied to a telephone banking device that provides user-specific information of a financial institution such as a deposit balance, a transfer amount, and a withdrawal amount by telephone.

The telephone banking device 115 has a function of operating the push switch 116 of the telephone 110 to input operation details.

Further, the telephone banking device 115
Unless a financial password stored in advance is input, no unique information is transmitted.

Here, the financial password is a specific password that can be known only by a legitimate user of the telephone banking device 115 (including a person authorized by the legitimate user).
In the second embodiment, the financial password is a combination of a numerical value and a blank. The financial password may be a combination of a symbol and a blank, or a combination of a symbol, a numerical value, and a blank. In short, it is assumed that codes such as numerical values and symbols and blank spaces are assigned to the financial password.

The telephone banking device 115 includes a telephone 110 assigned to each legitimate user of the telephone banking device 115 and a telephone banking terminal 111 of a financial institution for giving an instruction to input a plurality of digits. It is connected by a public network telephone line s via an exchange 114.

The telephone 110 is a commercially available one. When the push switch 116 of the telephone 110 is pushed, a call signal is transmitted to the telephone banking terminal 111 via the public telephone line s.

The push switch 116 is provided on the telephone 110. The push switch 116 inputs a numerical value to each of a plurality of digits. Push switch 116
Then, a switch for inputting "#", "*", or a specific numerical value is operated in the same manner as the enter key 15 of the first embodiment described above.

On the financial institution side, in addition to the telephone banking terminal 111, the telephone banking storage device 11
2 and a telephone banking determination device 113.

It is assumed that a six-digit financial password which can be known only by a valid user is stored in the telephone banking storage device 112 in advance. For example, in the telephone banking storage device 112, the first digit is “1”, the second digit is “2”, the third digit is “3”, and the fourth digit is “4” in order from the highest digit in the financial password. It is assumed that the fifth digit is “blank” and the sixth digit is “blank”.

Telephone banking determination device 113
Is a numerical value input by operating the push switch 116 of the telephone 110 and the telephone banking storage device 112.
The upper four digits "1" of the financial password stored in
It is determined whether "2", "3", and "4" match for each digit, and whether a numerical value has been entered corresponding to one or both of the lower two blank spaces of the financial password. I do.
In addition, the telephone banking determination device 113 operates the push switch 116 of the telephone 110 and the numerical value of the upper four digits of the financial password stored in the telephone banking storage device 112, “1”, “2”,
In the case where “3” and “4” are matched for each digit and a numerical value is not entered corresponding to the lower two digits of the financial password, the transmission cancellation signal is transmitted to the telephone banking terminal 111. Send to In addition, the telephone banking determination device 113 operates the push switch 116 of the telephone 110 and the numerical values of the upper four digits of the financial password stored in the telephone banking storage device 112, “1”, “2”, “ Either the condition that "3" and "4" do not match, or the lower two of the financial password
If either one or both of the conditions that a numerical value is input corresponding to one or both of the blank columns of the digits are determined, the transmission cancellation signal is not transmitted to the telephone banking terminal 111.

The telephone banking terminal 111 receives a call signal from the telephone 110 and, as a voice message, issues an instruction to prompt the telephone 110, which transmitted the call signal, to input a plurality of digits via the public telephone line s. Send. Telephone banking terminal 111
Transmits the unique information of the valid user to the telephone 110 when the transmission cancellation signal is received from the telephone banking determination device 113. Telephone banking terminal 1
Numeral 11 maintains a state in which unique information of a valid user is not transmitted to the telephone 110 when the transmission cancellation signal is not received.

Next, the operation of the telephone banking device 115 will be described with reference to FIG. Here, the description will be made assuming that a numerical value is input in correspondence with both of the lower two digits of the blank of the financial password.

First, a valid user of the telephone banking device 115 or the telephone banking device 115
A person other than a legitimate user of the public telephone system operates the push switch 116 of the telephone 110 to operate the public telephone line s.
A calling signal is transmitted to the telephone banking terminal 111 via the telephone. And the terminal 111 for telephone banking
A calling signal is received by the telephone banking terminal 111 via the public telephone line s.
A message "Please enter the 6 digits of the customer number" is sent by voice. As a result, an instruction prompting entry to a plurality of digits is given to a valid user of the telephone banking device 115 or a person other than a valid user of the telephone banking device 115 (step 90).
0).

Then, the legitimate user of the telephone banking device 115 operates to push the push switch 116 of the telephone, and the numerical values "1", "2", "3", "4" are set in only the upper four digits of the financial password. Enter On the other hand, a person other than the legitimate user of the telephone banking device 115 presses the push switch 116 of the telephone 110 according to the message transmitted from the telephone banking terminal 111, and inputs numerical values to all six digits. (Step 901).

In this way, a numerical value "4" is input to the fourth digit of the financial password by a valid user. Alternatively, a numerical value is input in the sixth digit by a person other than a valid user. When the authorized user or a person other than the authorized user inputs “#” or “*” of the push switch 116 of the telephone 110 or a specific numerical value (step 902), the telephone bank is then used for telephone banking. The determination device 113 operates the push switch 116 of the telephone 110 and the numerical values of the upper four digits of the financial password stored in the telephone banking storage device 112, “1”, “2”, “3”, “ It is determined that “4” matches every digit, and that no numerical value has been input corresponding to the lower two blanks of the financial password (step 903).

As a result, the numerical value input by operating the push switch 116 of the telephone 110 and the upper four digits of the financial password stored in the telephone banking storage device 112 are “1”, “2”, “3”, If the condition is that "4" matches each digit and that no numerical value has been entered corresponding to the last two blanks of the financial password (determination YES in step 903), the transmission cancellation signal is The information is transmitted to the banking terminal 111, and the unique information of the legitimate user is transmitted to the telephone 110 (step 90).
4).

However, when it is determined that a numerical value has been input corresponding to the lower two digits of the blank of the financial password (determination NO in step 903), the input financial password and the telephone banking storage device 112 are stored. It is determined that the stored financial passwords do not match,
Returning to step 900, the user is again prompted to enter a financial password. That is, when a person other than the legitimate user of the telephone banking device 115 attempts to enter the financial password, the state in which the unique information of the legitimate user is not transmitted to the telephone 110 is maintained. As described above, also in the present embodiment, it is possible to quickly perform the password mismatch determination processing.

It is also possible to execute a process of comparing the input financial password with the financial password stored in the telephone banking storage device 112 for each digit, and then determine a password mismatch.

In this case, the numerical value input by operating the push switch 116 of the telephone 110 and the upper four digits “1”, “2”, “3” of the financial password stored in the telephone banking storage device 112 And / or "4" do not match, or a condition that a numerical value is entered in correspondence with the lower two digits of the financial password, or both conditions are determined ( (NO in step 903), the process returns to step 900, and prompts for the input of the financial password again. That is, when a person other than the legitimate user of the telephone banking device 115 attempts to enter the financial password, the state in which the unique information of the legitimate user is not transmitted to the telephone 110 is maintained.

As described above, according to the second embodiment, the financial password is stored in the telephone banking storage device 112 in advance such that the lower two digits of the six digits of the financial password are blank. Then, an instruction prompting input to six digits is given by the telephone banking terminal 111 as a voice message.

Therefore, according to the second embodiment, even if a numerical value is repeatedly input to six digits and all combinations of the numerical value of six digits are completed, transmission of unique information of a valid user is impossible. Can be

Although the second embodiment has been described on the assumption that a numerical value is input corresponding to both of the lower two digits of the financial password, it is needless to say that the lower two digits of the financial password are blank. The present invention can be applied to a case where a numerical value is input corresponding to any one of them.

In the second embodiment, the financial password is stored so that the fifth and sixth digits are blank.
However, the present invention is not limited to this, and one or more digits of the financial password may be stored so as to be blank.

In the above-described second embodiment, an instruction to input each digit of the financial password is given by voice. However, it is needless to say that each of the financial passwords is input in the same manner as in the first embodiment. An instruction to input a digit may be given using the display means.

Next, an embodiment will be described with reference to FIG. 12 in which an instruction to input each digit of the financial password is given using the display means.

FIG. 12 is a diagram showing a display example of a display screen of a CD (Cash Machine) or ATM (Cash Machine) of a financial institution. In FIG. 12, it is assumed that the service password input screen 50 of FIG. 5 is applied to a display screen of a display device provided in a CD or an ATM. Therefore, the password input screen 100 in FIG. 12 corresponds to the service password input screen 50 in FIG. FIG.
5 correspond to the digit display units 50a, 50b, 50c, 50d of FIG. Also, the dummy digit display portions 100e, 100f in FIG.
Corresponds to the dummy digit display sections 50e and 50f in FIG. It is also assumed that a CD or an ATM (not shown) includes a storage unit corresponding to the telephone banking storage device 112 and a determination unit corresponding to the telephone banking determination device 113.

According to FIG. 12, a legitimate user of a CD or an ATM performs an input operation to input the first digit value “1” of the financial password corresponding to the digit display portion 100a. On the other hand, a person other than a legitimate user of the CD or the ATM performs an input operation to input a numerical value corresponding to the digit display unit 100a. Thereafter, every time the financial password is input, the blinking part is displayed in the digit display part 100b, 100c, 100d,
The display sequentially moves to the dummy digit display sections 100e and 100f, and prompts the input of the numerical value of the corresponding digit. The legitimate user performs the input operation of the financial password in accordance with the blinking portion sequentially moving to the digit display portions 100b, 100c, 100d and the dummy digit display portions 100e, 100f. 1st digit, 2nd digit, 3rd digit, 4th digit,
Numerical values "2", "3", "4" corresponding to the third and fourth digits
And do not enter a numerical value corresponding to the lower two digits of the blank. On the other hand, a person other than a legitimate user performs the input operation of the financial password as the blinking part moves sequentially to the digit display parts 100b, 100c, 100d and the dummy digit display parts 100e, 100f, and performs the digit display part. 100b, 1
00c, 100d, dummy digit display sections 100e, 100f
Enter the numerical values in order.

The digit display section 10 is provided by a valid user.
The numerical value “4” of the fourth digit of the financial password is input to 0d. Alternatively, a numerical value is input to the dummy digit display unit 100f by a person other than a valid user. Here, when a confirmation switch (not shown) corresponding to the enter key 15 of the first embodiment is pressed, the CD or ATM determination means then determines the inputted numerical value and the numerical value of the upper four digits of the stored financial password “ It is determined that "1", "2", "3", and "4" match for each digit, and that no numerical value has been entered corresponding to the lower two blanks of the financial password.

As a result, the input numerical value and the numerical values of the upper four digits of the stored password “1”, “2”, “3”,
The condition that "4" matches each digit, the condition that no numerical value is entered corresponding to the lower two digits of the financial password, and the condition where the four-digit numerical value is entered incorrectly When three conditions, that is, the condition that the confirmation switch is not pressed, are determined, unique information of a valid user is displayed.

However, when it is determined that a numerical value has been input corresponding to the lower two digits of the blank of the financial password,
The blinking part on the personal identification number input screen 100 shifts again to the digit display part 100a corresponding to the first digit of the financial password,
Prompt for correct financial password again. That is, C
When a person other than D or the valid user of the ATM attempts to enter the financial password, the display screen of the CD or the ATM maintains the state of the password input screen 100. As described above, also in the present embodiment, it is possible to quickly perform the password mismatch determination processing.

It is also possible to execute a process of comparing the inputted financial password with the stored financial password for all digits, and then determining a mismatch between the passwords.

In this case, the input numerical value and the numerical values of the upper four digits of the stored financial password are “1”, “2”,
The condition that "3" and "4" do not match, the condition that a numerical value was entered corresponding to the lower two digits of the financial password, and the confirmation switch was pressed by mistake during the entry of the four-digit numerical value. If one or more of the conditions that have been executed overlap, the password input screen 10
The blinking point on 0 shifts to the digit display section 100a corresponding to the first digit of the financial password again, and prompts for the input of the correct financial password again. That is, when a person other than a legitimate user of the CD or the ATM tries to enter the financial password, the display screen of the CD or the ATM maintains the state of the password input screen 100.

In FIG. 12, the lower 2 of the financial password
Although the description has been made assuming that a numerical value is input in correspondence with both of the blank spaces of the digits, the lower two
The present invention can also be applied to a case where a numerical value is input corresponding to any one of the blank spaces of the digits.

Further, a password input screen 10 shown in FIG.
In the case of 0, the digit display units 100a, 100b, 100c, 10
0d is displayed on the left side in FIG. 11, and the dummy digit display portions 100e and 100f are displayed on the right side in FIG. 12, but the digit display portions 100a, 100b, 100c, and 100d are displayed.
The positions of the dummy digit display portions 100e and 100f are shown in FIG.
However, the present invention is not limited to this. That is, the digit display units 100a, 1
00b is displayed on the left side of FIG.
00d may be displayed on the right side in FIG. 12, and the dummy digit display portions 100e and 100f may be displayed at the center in FIG. In this case, the digit display units 100a, 100b,
100c and 100d are the digit display units 60a, 60b,
60e and 60f. Also, the dummy digit display units 100e and 100f in FIG.
60d.

As shown in FIG. 13, the dummy digits can be arranged so that the digits to which a numerical value is to be input are sandwiched by the dummy digits.

Further, similarly to the first embodiment, when the financial password is known to a person other than an authorized user, the digits to which the numerical value constituting the financial password should be input by a specific operation by a service person or the like. The arrangement of the dummy digits may be arbitrarily changed.

The above-described password processing apparatus of the present invention may be applied to a means for authenticating a trading party in a business transaction using the Internet.

The password processing apparatus according to the present invention may be applied to a television banking apparatus that provides information unique to a user of a financial institution by digital television broadcasting.

In the means for authenticating the trading party or the television banking device, an instruction for prompting the input of each digit of a preset password may be displayed, or may be given by voice or a combination of display and voice.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of a password processing device of the present invention.

FIG. 2 is a flowchart illustrating a procedure of a process of releasing a locked state of a start function or a work function of the construction machine.

FIG. 3 is a diagram illustrating a display example of a display screen according to the first embodiment.

FIG. 4 is a diagram illustrating a display example of a display screen according to the first embodiment.

FIG. 5 is a diagram illustrating a display example of a display screen according to the first embodiment.

FIG. 6 is a diagram illustrating a display example of a display screen according to the first embodiment.

FIGS. 7A, 7B, and 7C are diagrams illustrating display examples of a display screen according to the first embodiment.

FIG. 8 is a diagram illustrating a display example of a display screen according to the first embodiment.

FIG. 9 is a diagram illustrating a display example of a display screen according to the first embodiment.

FIG. 10 is a second embodiment of the password processing device of the present invention.
It is a figure showing an embodiment.

FIG. 11 is a flowchart illustrating a procedure of processing for canceling a state in which unique information of a valid user of the telephone banking device is not transmitted.

FIG. 12 is a diagram showing a display example of a display screen of an automatic teller machine and an automatic teller machine.

FIG. 13 is a diagram showing an arrangement relationship of digits constituting a password.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Password processing device 2 ... Display screen 3-15 ... Switch 16a, 16b ... Storage part 17 ... Judgment part 115 ... Telephone banking device 111 ... Telephone banking terminal 110 ... Telephone 116 ... Push switch 112 ... Telephone banking storage device 113 … Determining device for telephone banking

Claims (4)

[Claims] 1. A specific password having one or a plurality of digits is set in advance, and a code is entered in a digit constituting the specific password. As a result, the input password does not match the specific password. In the password processing device for determining that the password has been changed, one or more dummy digits are set in addition to digits constituting the specific password, and a code is urged to the one or more dummy digits. Instruction means for giving an instruction; and determining means for determining that the input password does not match the specific password when a code is input to the one or more dummy digits in accordance with the instruction. A password processing device comprising: 2. The password processing device according to claim 1, wherein the instruction unit is a display unit that displays the one or more dummy digits. 3. The password processing apparatus according to claim 1, wherein the instruction unit is a voice output unit that gives an instruction to input the one or more dummy digits by voice. 4. The apparatus according to claim 1, further comprising changing means for changing an arrangement relationship between each digit constituting said specific password and said one or more dummy digits.
Or the password processing device according to 2 or 3.