JP6902361B2 - Input assist device, input assist method and input assist program - Google Patents

Description

The present invention relates to an input assist device, an input assist method, and an input assist program that control display when a password is input.

Conventionally, when a password is input to a terminal, there is a control method of displaying masked characters or displaying the last input character for a short time or until the next character is input.
In order to increase security so that the password cannot be seen by a third party, it is conceivable that neither the last character nor the mask character is displayed, but by displaying the last entered character, for example, a PC ( The user can easily notice an input error in a touch-type software keyboard or the like, which is less reliable than a physical keyboard used in a personal computer or the like. Also, by echoing the password characters with the masked characters, it is possible to visually feed back to the user that the user's input was actually accepted.

Further, as a method of preventing a third party from knowing the password, a technique of eliminating the operation of inputting the actual password itself has been proposed. For example, in Patent Document 1, a dummy password is input when the password is input. This shows an authentication device that makes it difficult to detect the authentic password.

Japanese Unexamined Patent Publication No. 2012-133702

When the user is required to enter the actual password, if there is feedback on the input operation as described above, the convenience may be improved, but the contents of the password may be known to a third party.

An object of the present invention is to provide an input assist device, an input assist method, and an input assist program capable of reducing the possibility that the input character is visually recognized by a user while reducing the possibility that the character is known to a third party.

The input assist device according to the present invention converts the reception unit that sequentially accepts the input of characters constituting the password and the display character of the input character received by the reception unit from the standard display mode to generate obfuscated display data. A conversion unit for displaying the display data generated by the conversion unit and a display control unit for displaying the display data generated by the conversion unit are provided.

The conversion unit may convert the shape of the display character.

The conversion unit may add a noise image to the display character.

The conversion unit may generate display data including display characters of dummy characters different from the input characters together with the input characters.

The conversion unit may select a character whose position on the input device is separated from the input character by a predetermined value or more as the dummy character.

In the input assist method according to the present invention, a reception step that sequentially accepts input of characters constituting a password and a display character of the input character received in the reception step are converted from a standard display mode to generate obfuscated display data. The computer executes a conversion step to be performed and a display control step for displaying the display data generated in the conversion step.

The input assist program according to the present invention converts the reception step that sequentially accepts the input of the characters constituting the password and the display character of the input character received in the reception step from the standard display mode to generate obfuscated display data. The computer is made to execute the conversion step to be performed and the display control step to display the display data generated in the conversion step.

According to the present invention, it is possible to reduce the possibility that the input character is known to a third party while allowing the user to visually recognize the input character.

It is a block diagram which shows the functional structure of the input assist device which concerns on embodiment. It is a figure which shows the 1st display example of the character which concerns on embodiment. It is a figure which shows the 2nd display example of the character which concerns on embodiment.

Hereinafter, an example of the embodiment of the present invention will be described.
FIG. 1 is a block diagram showing a functional configuration of the input assist device 1 according to the present embodiment.
The input assist device 1 is an information processing device (computer) such as a smartphone, a tablet terminal, a game machine, or a navigation device. The present embodiment assumes a mobile terminal as an example, but is not limited to this, and can be applied to various electronic devices such as PCs, server devices, home appliances, office devices, etc., which require password input.

The input assist device 1 includes a control unit 10, a storage unit 20, an input unit 30, and a display unit 40.
The control unit 10 is a part that controls the entire input assist device 1, and realizes various functions in the present embodiment by appropriately reading and executing a program stored in the storage unit 20. The control unit 10 may be a CPU.

The storage unit 20 is a storage area for various programs and various data for making the hardware group function as the input assist device 1, and may be a ROM, a RAM, a flash memory, a hard disk (HDD), or the like. Specifically, the storage unit 20 stores an input assist program that causes the control unit 10 to execute each function of the present embodiment.

The input unit 30 is an interface device that receives an operation input from the user to the input assist device 1. The input unit 30 is composed of, for example, a keyboard, a mouse, a touch panel, and the like.

The display unit 40 is a display device that displays a screen for accepting data input to the user and displays a screen of a processing result by the input assist device 1. The display unit 40 may be a liquid crystal display (LCD), an organic EL display, or the like.

A touch panel as an input unit 30 may be superposed on the display unit 40. In this case, the display unit 40 displays the software keyboard, and the input unit 30 accepts the input of the password according to the present embodiment by a touch operation. Further, as an input assist for the password, the display unit 40 displays the character corresponding to the input character.

Next, the function of the control unit 10 will be described in detail.
The control unit 10 includes a reception unit 11, a conversion unit 12, and a display control unit 13.
The reception unit 11 sequentially accepts the input of characters constituting the password via the input unit 30.

The conversion unit 12 converts the display character corresponding to the input character received by the reception unit 11 from the standard display mode to generate obfuscated display data.
Specifically, the conversion unit 12 converts the shape of the display character and adds a noise image to the display character, making it difficult for a third party to read. The change in shape is to change the display mode from the standard font, for example, by adding distortion, rotating, adjusting the color or pattern of lines, and the like.

Further, the conversion unit 12 may generate display data including display characters of dummy characters different from the input characters together with the input characters.
At this time, the conversion unit 12 selects as dummy characters the input characters and the characters whose positions on the software keyboard as the input device are separated by a predetermined value or more. There may be a plurality of dummy characters selected.

The display control unit 13 causes the display unit 40 to display the display data generated by the conversion unit 12.
At this time, the display control unit 13 displays the display data for a predetermined time (for example, several seconds) or until the next character is input, and then erases or masks the display character (for example, "*". ”).

FIG. 2 is a diagram showing a first display example of the character according to the present embodiment.
In this example, the input assist device 1 uses two overlays in a predetermined area in order to display the characters input by the user on the screen.

A noise image such as random noise is output to the lower layer 41 of the overlay. A character having a constant contrast (“A” in this example) that is inconspicuous from noise is output to the upper layer 42 of the overlay. A composite image 43 in which these two overlays are superimposed is displayed on the display unit 40.

Further, since the display data is introduced with a geometric distortion similar to the CAPTCHA test, it is difficult for a third party to visually recognize it, and it is also difficult for the machine to automatically decode it. Here, parameters such as noise and distortion may be different for each character.

FIG. 3 is a diagram showing a second display example of the character according to the present embodiment.
In this example, the input assist device 1 simultaneously displays one or a plurality of random characters or figures as dummies in order to obfuscate the input characters. As a result, the user who has entered the characters of the password can confirm that the characters entered by himself / herself are displayed, and the third party cannot determine which character has been entered.
It should be noted that the characters displayed in plurality may be converted differently from each other.

Here, it is desirable that the characters displayed in plurality are separated from each other by a certain distance or more on the keyboard. For example, with a small software keyboard on a mobile terminal, it is not uncommon for nearby characters to be entered due to a typo. In this case, if the erroneously input character and the original character are displayed at the same time, the user cannot determine whether or not the character is input correctly. Such inconvenience is suppressed by displaying distant characters that are unlikely to cause typographical errors.

According to the present embodiment, the input assist device 1 converts the characters of the password entered by the user from the standard display mode, obfuscates the characters, and displays the password. Therefore, the input assist device 1 makes the input character visible to the user, but the character is a third party, as compared with the conventional method of displaying the last character in plain text or masking the input character. It can reduce the possibility of being known to.
The input assist method of the present embodiment is suitable for a mobile terminal that does not have a physical keyboard and has a display smaller than that of a desktop or laptop computer, and assists in inputting a password accurately and safely.

The input assist device 1 converts the shape of the display character and adds a noise image so that the person who entered the password can easily confirm the entered character and makes it difficult for a third party to decipher it. it can.

Further, by displaying the dummy characters at the same time, the input assist device 1 can make it more difficult for a third party to decipher the password without impairing the convenience of being able to confirm the person who entered the password.
Furthermore, by selecting characters whose positions on the input device are separated by more than a predetermined value as dummy characters, it is possible to prevent the characters erroneously input by the user and the original characters from being displayed at the same time, and the accuracy of confirmation by the user can be suppressed. Can be improved.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments. In addition, the effects described in the present embodiment merely list the most preferable effects arising from the present invention, and the effects according to the present invention are not limited to those described in the present embodiment.

The input assist method by the input assist device 1 is realized by software. When realized by software, the programs constituting the software are installed in the information processing device (input assist device 1). Further, these programs may be recorded on a removable medium such as a CD-ROM and distributed to the user, or may be distributed by being downloaded to the user's computer via a network.

1 Input assist device 10 Control unit 11 Reception unit 12 Conversion unit 13 Display control unit 20 Storage unit 30 Input unit 40 Display unit

Claims (5)

A reception unit that sequentially accepts the characters that make up the password from the user via the keyboard,
A conversion unit that converts the display character of the input character received by the reception unit from the standard display mode to generate obfuscated display data, and a conversion unit.
In order to make the user visually recognize the input character when the input character is input, a display control unit for displaying the display data generated by the conversion unit is provided .
The conversion unit generates display data including display characters of dummy characters different from the input characters together with the input characters so that the characters erroneously input by the user and the original characters are not displayed at the same time. in, said input character, you select the character position on the keyboard is spaced above a predetermined as the dummy character input assist device. The input assist device according to claim 1, wherein the conversion unit converts the shape of the display character. The input assist device according to claim 1 or 2, wherein the conversion unit adds a noise image to the display character. In the computer control section
A reception step in which the reception department sequentially accepts the characters that make up the password from the user via the keyboard.
A conversion step in which the conversion unit converts the display character of the input character received in the reception step from the standard display mode to generate obfuscated display data, and
The display control unit executes a display control step of displaying the display data generated in the conversion step in order to make the user visually recognize the input character when the input character is input .
In the conversion step, display data including a display character of a dummy character different from the input character is generated together with the input character so that the character erroneously input by the user and the original character are not displayed at the same time. An input assisting method for selecting a character whose position on the keyboard is separated from a predetermined character by a predetermined value or more as the dummy character. A reception step that sequentially accepts the characters that make up the password from the user via the keyboard,
A conversion step of converting the display character of the input character received in the reception step from the standard display mode to generate obfuscated display data, and a conversion step.
In order for the user to visually recognize the input character when the input character is input, a computer is made to execute a display control step for displaying the display data generated in the conversion step .
In the conversion step, display data including a display character of a dummy character different from the input character is generated together with the input character so that the character erroneously input by the user and the original character are not displayed at the same time. to the input character and the input auxiliary program. Used to select the character position on the keyboard is spaced above a predetermined as the dummy character.

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