JP2005182094A - Method and device for inputting password - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a password from being guessed by a third person from movement and a position of a hand of an input person when the password is inputted, with respect to a password input method/device for inputting the password. <P>SOLUTION: A display part displaying one number, one numeric key inputting an instruction for changing a number displayed on the display part and one decision key depressed when the number displayed on the display part as the password are installed in the device. The method has a step for sequentially displaying one number generated by random numbers on the display part whenever the numeric key is depressed, a step for sequentially taking in one number displayed on the display part whenever the decision key is depressed and a step for outputting number strings which are sequentially taken in as the passwords. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a password input method and a password input device for inputting a password.

  Conventionally, ATM (automatic cash deposit / withdrawal device), when performing cash deposit / withdrawal, etc., the user enters personal information such as the name of the person from the touch panel or reads the personal information from the card, and then enters the personal identification number. And verifying the identity and making deposits and withdrawals.

  At this time, the password is entered by sequentially selecting the numeric keys displayed on the touch panel unit. In this case, there is a possibility that the PIN number is guessed from the position and number of times of the selected numeric keypad, and in order to avoid this, by changing the display position coordinates of the numeric keypad displayed on the touch panel unit using random numbers The personal identification number was prevented from leaking to a third party (Patent Document 1).

Also, rotate the rotating number plate consisting of the numbers 0-9 on the display screen, and when the desired number changing while rotating comes to the pointer position, press the enter button sequentially to enter There is a technique that makes it difficult for a third party to guess which number is selected by the movement of the hand by avoiding guessing the number in (Patent Document 2).
JP 09-048662 A JP 09-237196 A

  In the former method described above, the configuration of the numeric keypad does not change, and the display position coordinates only change. Therefore, there is a problem that the display area of the numeric keypad is large and there is a high possibility that a personal identification number is inferred from the movement of the hand.

  Further, the latter method described above has a problem that the position of the pointer on the rotary numeral plate is fixed, so that the effect of preventing leakage at the time of inputting the personal identification number is weak.

  In order to solve these problems, the present invention presses a display unit for displaying numbers, a number key for changing numbers displayed on the display unit, and a number displayed on the display unit when inputting the number as a personal identification number. Each time the number key is pressed, one number generated by a random number is sequentially displayed on the display unit, and each time the enter key is pressed, one number displayed on the display unit is displayed. A number is used as a password.

  In addition, a display unit for displaying numbers 0 to 9 respectively, a pointer key for changing the position of a pointer indicating one of the numbers 0 to 9 displayed on the display unit, and a display unit Each time the pointer key is pressed, the position of the number on the display corresponding to the number generated by a random number is pointed with the pointer, and the enter key is pressed. Each time it is done, the number pointed by the pointer on the display unit is used as the password.

  Therefore, it is possible to prevent the third party from guessing the personal identification number from the movement and position of the input person's hand when entering the personal identification number.

  In the present invention, when a personal identification number is input, a random number from 0 to 9 is generated and a corresponding number from 0 to 9 displayed or displayed is pointed by a pointer, and a confirmation key is pressed. Since it uses a configuration that generates a random number and displays or points to it with a pointer, it can prevent guessing from the movement and position of the input user's hand when entering the PIN It becomes.

  In the present invention, one of numbers 0 to 9 generated by a random number is displayed or pointed with a pointer and a confirmation key is pressed to input a personal identification number, and when the personal identification number is entered, it is estimated from the movement and position of the input person's hand. It was realized to prevent that.

  FIG. 1 shows a configuration diagram (part 1) of an embodiment of the present invention.

  In FIG. 1, a display unit 1 displays one number generated with a random number from 0 to 9, and for example, when a password is entered on a screen 11 in FIG. It is a part for displaying one number to be displayed.

The number key 2 is used to input an instruction to change the number of the random number displayed on the display unit 1,
For example, it is a numeric key displayed when a personal identification number is input on the screen 11 of FIG.

  The confirmation key 3 is a key to be pressed when inputting one random number displayed on the display unit 1 as a personal identification number. For example, the personal identification number is input on the screen 11 in FIG. It is a confirmation key displayed at the time.

  ATM4 is a cash automatic depositing / withdrawing apparatus, and here, it inputs a password, and is comprised from the process part 5 grade | etc.,.

  The processing unit 5 performs various processes in accordance with a program. Here, the processing unit 5 performs a personal identification number input process, and includes a personal identification number input unit 6, a random number generation unit 7, a transaction processing unit 8, and the like. It is.

  The personal identification number input unit 6 receives an instruction from the transaction processing unit 8 when it is necessary to input the personal identification number, and displays the display unit 1, the numeric key 2, and the confirmation key 3 on the screen 11 as shown in the figure. The random number generated by the random number generator 7 when the person presses the number key 2 is displayed on the display unit 1, or the number displayed on the display unit 1 when the enter key 2 is pressed The number is taken in as a number (described later with reference to FIGS. 2 and 3).

  The random number generator 7 generates a number from 0 to 9 as a random number based on the time of the system.

  The transaction processing unit 8 confirms the identity of the user with a personal identification number and performs a deposit / withdrawal transaction or the like when OK.

  Next, the operation of the configuration of FIG. 1 will be described in detail according to the order of the flowchart of FIG.

  FIG. 2 is a flowchart for explaining the operation of the present invention (part 1).

  In FIG. 2, in S1, the numeric key 2 is pressed until the Nth digit of the password is displayed. This is because each time the user presses the numeric key 2 in FIG. 1, the random number generated by the random number generator 7 by the personal identification number input unit 6 is displayed as one of the numbers from 0 to 9. The number generated and displayed on the display unit 1 by a random number is displayed on the display unit 1 as the N-th digit of the personal identification number (the first digit, the second digit next, and the next three digits). Like eyes).

  In S2, the confirmation key is pressed. This is because the user repeatedly presses or presses the numeric key 2 in S1, and the Nth digit of the PIN code (first digit, second digit ...) is displayed on the display unit 1. As a result, the confirm key 3 is pressed to confirm and enter the password. Then, the process proceeds to S3.

  In S3, it is determined whether or not the number of digits of the password is. This is determined by repeating S1 and S2 by the number N of digits of the personal identification number to end input (pressing the enter key 3 to end input). Although the confirmed password is not shown in the figure, the number of “*” representing the number of digits is entered in the password field, so that the user can count the number of *. You can check the number of digits of the password you entered. In the case of YES, since the user has pressed and entered the confirmation key by the number of digits of the password, the process ends. In the case of NO, the input of the next digit number of the password is returned to S1 and repeated.

  As described above, the user presses the numeric key 2 in FIG. 1 to display one number generated as a random number on the display unit 1. Press to confirm and enter the next digit. If it is not the number to be entered, repeatedly press the numeric key 2 to display the number to be entered and press the Confirm key 3 to confirm and continue It is possible to prevent the password from being guessed from the movement and position of the input user's hand when the password is input by repeating the input of the digit and inputting the password of the predetermined digit.

  FIG. 3 is a diagram for explaining the operation of the present invention (part 1). This will be described in detail when a random number is generated in FIGS. 1 and 2 and a random number is displayed on the display unit 1 to input a personal identification number.

  FIG. 3A shows an example in which the display unit 1, the numeric key 2, and the confirmation key 3 are displayed on the screen 11 when the personal identification number is input.

  In FIG. 3A, a screen 11 shows an example of a screen displayed on the display device of ATM4. Here, menu keys such as deposit, withdrawal, passbook entry, balance inquiry, etc. are displayed on the right side of the screen 11, and one of these processes is selected as described in (a-1) below. When it is necessary to input a personal identification number, the display unit 1, numeric key 2, and confirmation key 3 according to the present invention are displayed on the screen 11 as shown in the figure.

FIG. 3B shows a display example. This is done by sequentially pressing the number key 2 shown in FIG. 3 (a) displayed when the user needs to input a personal identification number, and the number generated by the random number is displayed on the display unit 1 and confirmed. An example of a pattern of numbers of the random number when the key 3 is pressed and confirmed is shown. Here, as shown,
-Pattern 1 (Random number pattern 1 when the first digit of the PIN is entered):
・ Pattern 2 (Random number pattern 2 when entering the second digit of the PIN):
・ Pattern 3 (Random number pattern 3 when inputting the third digit of the PIN):
・ Pattern 4 (Random number pattern 4 when the fourth digit of the PIN is entered):
...
Pattern n (random number pattern N when the Nth digit of the PIN is entered):
And Now, if you enter your PIN “3079”
(1) First digit of the code number: Since the pattern 1 is generated as a random number, the number “3” to be input by pressing the number key 2 three times is displayed on the display unit 1. 3 is pressed and “3” in the first digit of the password is entered.

  (2) Second digit of the code number: Since the pattern 2 is generated as a random number, the number “0” input by pressing the number key 2 seven times is displayed on the display unit 1. 3 is pressed and “0” in the first digit of the password is entered.

  (3) Similarly, press the number key 2 5 times for the third digit of the password, and press the number key 6 times for the fourth digit, respectively, so that the third digit, the fourth digit “7”, “ 9 ”is entered.

  As described above, the number key 2 is pressed or repeatedly pressed repeatedly, and the number to be entered among the different numbers generated each time is displayed on the display unit 1 and the enter key 3 is pressed repeatedly. Can be prevented from being estimated from the movement and position of the hand of the input person. The random number is generated with, for example, the system time (for example, the required number of digits in the year / month / day / hour / minute / second / millisecond) as an initial value. There is nothing.

  FIG. 4 is a block diagram of an embodiment (part 2) of the present invention.

  In FIG. 4, the display unit 21 displays numbers from 0 to 9, respectively. For example, instead of the display unit 1 displayed on the screen 11 in FIG. It is a display unit for displaying numbers from 0 to 9 when inputting numbers.

  The pointer key 22 is a key for moving the pointer pointing (pointing) to any number from 0 to 9 displayed on the display unit 21 to the position of the number generated by a random number. In place of the numeric key 2 displayed on the screen 11 in FIG. 3A, a pointer generated by a random number that points to any number from 0 to 9 displayed on the display unit 21 is displayed. Pointer key displayed to move to position.

  The confirmation key 23 is a key that is pressed when one number pointed to by the pointer from 0 to 9 displayed on the display unit 21 is input as a personal identification number. For example, as shown in FIG. This is the same as the confirmation key 3 displayed on the screen 11 in a), and is for confirming and inputting one number in the display unit 21 pointed by the pointer as a personal identification number.

  The ATM 4 is an automatic cash deposit / withdrawal device, and here is for inputting a personal identification number when it becomes necessary for input / output processing or the like, and is constituted by a processing unit 5 and the like.

  The processing unit 5 performs various processes in accordance with a program. Here, the processing unit 5 performs a personal identification number input process, and includes a personal identification number input unit 61, a random number generation unit 7, a transaction processing unit 8, and the like. It is.

  The personal identification number input unit 61 receives an instruction from the transaction processing unit 8 when it is necessary to input the personal identification number, and the display unit 21, the pointer key 22, and the confirmation key 23 are shown on the screen 11 in FIG. Although not displayed as described above, the pointer is displayed with a pointer on a number on the display unit 21 that matches the random number generated by the random number generation unit 7 when the user presses the displayed pointer key 22. When the confirmation key 23 is pressed, the number pointed by the pointer on the display unit 21 is taken in as a personal identification number (described later with reference to FIG. 5).

  The random number generator 7 generates any number from 0 to 9 as a random number based on the time of the system.

  The transaction processing unit 8 confirms the identity of the user with a personal identification number and performs a deposit / withdrawal transaction or the like when OK.

  Next, the operation of the configuration of FIG. 4 will be described in detail according to the order of the flowchart of FIG.

  FIG. 5 shows a flowchart (part 2) for explaining the operation of the present invention.

  In FIG. 5, in step S11, the pointer key 22 is pressed until the pointer points to the Nth digit of the personal identification number. This is a display corresponding to one of the numbers from 0 to 9 of the random number generated by the random number generation unit 7 by the personal identification number input unit 61 each time the user presses the pointer key 22 of FIG. The user repeatedly points one of the numbers from 0 to 9 displayed on the unit 21 with the pointer, and the user generates the random number generated on the display unit 21 and points the number to the pointer N. Equal to the first digit (first digit, next second digit, next third digit, etc.).

  In S12, the confirmation key 23 is pressed. This is because the user repeatedly presses or depresses the pointer key 22 in S11, and the N-th digit of the code number pointed to by the pointer among the numbers 0 to 9 displayed on the display unit 21 ( Since the first digit is designated as the first digit, the second digit is designated as the second digit, etc.), the confirmation key 23 is pressed to confirm and enter the code number. Then, the process proceeds to S13.

  In S13, it is determined whether the number of digits of the password is. This is determined by repeating S11 and S12 by the number N of digits of the personal identification number to end the input (pressing the enter key 23 to end the input). Although the confirmed password is not shown in the figure, the number of “*” representing the number of digits is entered in the password field, so that the user can count the number of *. You can check the number of digits of the security code entered. In the case of YES, since the user has pressed and entered the confirmation key 23 by the number of digits of the password, the process ends. In the case of NO, the input of the next digit number of the password is returned to S11 and repeated.

  As described above, the user presses the pointer key 22 in FIG. 4 to display one number from 0 to 9 on the display unit 21 corresponding to one number generated by random numbers with the pointer. If it is a number to be entered by seeing this, the enter key 23 is pressed to confirm and the next digit is input, while if it is not the number to be input, the pointer key 22 is pressed repeatedly. By displaying the number to be displayed, pressing the confirmation key 23 and confirming and inputting the next digit repeatedly, by inputting the password of the predetermined digit, the movement of the input person's hand when inputting the password It is possible to prevent the password from being estimated from the position.

  FIG. 6 shows a configuration diagram (part 3) of one embodiment of the present invention.

  In FIG. 6, the display unit 31 divides the numbers from 0 to 9 into a plurality of groups and displays the numbers belonging to each group. For example, the screen 11 in FIG. Instead of the display unit 1 displayed above, it is a display unit that divides the numbers from 0 to 9 into a plurality of groups and displays the numbers belonging to each group when inputting the personal identification number.

  The pointer key 32 is a key for moving and displaying the pointer so that a number generated by a random number points to the pointer. If the number generated by a random number is in a number belonging to the currently displayed group, the pointer is moved to that number, and if it is not a number belonging to the currently displayed group, all the numbers in the group to which the number belongs are displayed. Display the corresponding number with the pointer. For example, when the pointer key 32 is displayed instead of the numeric key 2 displayed on the screen 11 of FIG. 3A described above and the pointer key 32 is pressed, the group displayed on the display unit 31 is displayed. If there is a number generated by a random number among the numbers belonging to, the pointer points to it, and if not, all the numbers of the group to which the number belongs are displayed, and then the number is pointed with the pointer.

  The confirmation key 33 is a key that is pressed when one number pointed by the pointer among the numbers belonging to the group displayed on the display unit 31 is input as a personal identification number. For example, as shown in FIG. This is the same as the confirmation key 3 displayed on the screen 11 in (a), and is for confirming and inputting one number in the display unit 31 pointed by the pointer as a personal identification number.

  The ATM 4 is an automatic cash deposit / withdrawal device, and here is for inputting a personal identification number when it becomes necessary for input / output processing or the like, and is constituted by a processing unit 5 and the like.

  The processing unit 5 performs various processes in accordance with a program. Here, the processing unit 5 performs a personal identification number input process, and includes a personal identification number input unit 62, a random number generation unit 7, a transaction processing unit 8, and the like. It is.

  The personal identification number input unit 62 receives an instruction from the transaction processing unit 8 when it is necessary to input the personal identification number, and the display unit 31, the pointer key 32, and the confirmation key 33 are shown on the screen 11 in FIG. However, it is displayed as described above, and when the user presses the displayed pointer key 32, all the numbers of the group to which the random number generated by the random number generation unit 7 belongs are displayed, and the numbers match. A point is displayed with a pointer, or the number pointed with the pointer on the display unit 31 when the confirmation key 33 is pressed is taken in as a personal identification number (which will be described later with reference to FIG. 7).

  The random number generator 7 generates any number from 0 to 9 as a random number based on the time of the system.

  The transaction processing unit 8 confirms the identity of the user with a personal identification number and performs a deposit / withdrawal transaction or the like when OK.

  Next, the operation of the configuration of FIG. 6 will be described in detail according to the order of the flowchart of FIG.

  FIG. 7 is a flowchart (part 3) for explaining the operation of the present invention.

  In FIG. 7, in S21, the pointer key 32 is pressed. This is because the user presses the pointer key 32 of FIG. 6 described above in order to input the password.

  In S <b> 22, it is determined whether or not the number generated by the random number is on the display unit 31. This is because one of the numbers 0 to 9 of the random number generated by the random number generation unit 7 when the pointer key 32 is pressed in S21 is currently displayed on the display unit 31. Determine if it is in the displayed group number. In the case of YES, the pointer is displayed in S24, that is, the corresponding number among the numbers of the group displayed on the display unit 31 is displayed so as to point with the pointer. On the other hand, in the case of NO, since it has been found that it is not currently in the group numbers displayed on the display unit 31, switching to a combination including a random number in S23 (the number generated by the random number belongs) The display is switched to a group), and the pointer is displayed as a point on the corresponding number among the numbers belonging to the group after switching in S24.

  In S25, it is determined whether or not the PIN number is N digits. In step S24, it is determined whether or not the number pointed to by the pointer indicates the number of the PIN code number N (same as the number). In the case of YES, since the number pointed to by the pointer is found to be the number of the PIN number, the confirmation key 33 is pressed in S26 to confirm and input, and the process proceeds to S27. On the other hand, in the case of NO in S25, since it has been found that the number pointed to by the pointer is not the N digit number of the secret code number, the process returns to S21 and the next number generated by the random number by pressing the pointer key 32 is displayed. Repeat as you point at the pointer.

  In S27, it is determined whether or not the number of digits of the password is. For this, it is determined whether or not the input of the number of passwords is completed by pressing the confirmation key 33 in S26 for the number of digits of the password. If YES, the process ends. If NO, return to S21 and repeat.

  As described above, the user presses the pointer key 32 in FIG. 6 and uses the pointer to select one of a plurality of numbers in the corresponding group on the display unit 21 corresponding to one number generated by a random number. Since a point is displayed, if the number is to be entered by looking at this, the enter key 33 is pressed to confirm and the next digit is input, while if it is not the number to be input, the pointer key 32 is pressed. Is repeated by pointing to the number to be input and pressing the confirm key 33 to confirm and inputting the next digit, and by inputting the password of the predetermined digit, The password can be prevented from being guessed from the movement and position of the hand, and the numbers 0 to 9 displayed on the display unit 31 are switched into a plurality of groups, and the corresponding numbers are pointed with a pointer. By Shimesuru, it is possible to reduce the number of parts to be displayed.

  According to the present invention, one of numbers 0 to 9 generated by random numbers is displayed or pointed with a pointer and a confirmation key is pressed to input a personal identification number, and when the personal identification number is entered, it is estimated from the movement and position of the input person's hand. It is possible to prevent this.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. It is operation | movement explanatory flowchart (the 1) of this invention. It is explanatory drawing (the 1) of this invention. FIG. 3 is a configuration diagram (Part 2) of an embodiment of the present invention. It is operation | movement description flowchart (the 2) of this invention. FIG. 3 is a configuration diagram of an embodiment of the present invention (No. 3). It is operation | movement description flowchart (the 3) of this invention.

Explanation of symbols

1, 11, 21: Display unit 2: Number keys 11, 21: Pointer keys 3, 13, 23: Confirm key 4: ATM
5: Processing unit 6, 61, 62: PIN input unit 7: Random number generating unit 8: Transaction processing unit

Claims (5)

In the password entry method for entering a password,
A display for displaying one number;
One number key for inputting an instruction to change the number displayed on the display unit;
One confirmation key to be pressed when inputting the number displayed on the display unit as a personal identification number;
Each time the number key is pressed, sequentially displaying one number generated by a random number on the display unit;
Each time the enter key is pressed, sequentially taking one number displayed on the display unit;
A password input method comprising the step of outputting the sequentially captured number strings as a password. In the password entry method for entering a password,
A display unit for displaying numbers from 0 to 9, respectively;
One pointer key for inputting an instruction to change the position of the pointer pointing to any one of the numbers 0 to 9 displayed on the display unit;
One confirmation key to be pressed when inputting the number displayed on the display unit as a personal identification number;
Each time the pointer key is pressed, the step of pointing with the pointer the position of the number on the display unit corresponding to the number generated by a random number;
Each time the confirmation key is pressed, sequentially taking one number pointed by the pointer on the display unit;
A password input method comprising the step of outputting the sequentially captured number strings as a password. In the password entry method for entering a password,
A display unit for dividing numbers 0 to 9 into a plurality of groups and displaying numbers belonging to one of the groups;
A pointer key for inputting an instruction to change the position of the pointer pointing to the number displayed on the display unit;
One confirmation key to be pressed when inputting the number displayed on the display unit as a personal identification number;
Each time the pointer key is pressed, the position of the number on the display unit corresponding to the number generated by a random number is indicated by the pointer, or when the number is not displayed on the display unit Switching to the group to which the number belongs and displaying the number, then pointing the number with the pointer;
Each time the confirmation key is pressed, sequentially taking one number pointed by the pointer on the display unit;
A password input method comprising the step of outputting the sequentially captured number strings as a password.   The number generated by the random number is any number from 0 to 9 generated by a random number based on the system time when the number key or the pointer key is pressed. The password input method according to any one of claims 1 to 3. In the password input device for inputting the password,
A display for displaying one number;
One number key for inputting an instruction to change the number displayed on the display unit;
One confirmation key to be pressed when inputting the number displayed on the display unit as a personal identification number;
Means for sequentially displaying one number generated by a random number on the display unit each time the number key is pressed;
Means for sequentially taking in one number displayed on the display unit each time the confirmation key is pressed;
A password input device, comprising: means for outputting the sequentially fetched number string as a password.

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