KR101122197B1 - Method of displaying virtual keypad for preventing the leaking of information - Google Patents

Abstract

PURPOSE: A virtual keypad display method for preventing information leakage is provided to protect personal information which is inputted through a virtual keypad by protecting user input information including a number and a character from the touch location hacking. CONSTITUTION: A screen controller obtains display symbol information(S22). The screen controller displays the display symbol to a virtual key(S23). If a user touches the virtual key, the screen controller stores the display symbol on the touched virtual key(S27). The screen controller obtains display symbol information(S28).

Description

Method of displaying virtual keypad for preventing information leakage by touch position hacking {method of displaying virtual keypad for preventing the leaking of information}

The present invention relates to a method for displaying a virtual keypad on an output device of an IT device, and more particularly, to a virtual keypad display method for preventing personal information input through a virtual keypad from being leaked to the outside by touch location hacking. It is about.

In the modern information society, there are many information devices of various types (for example, personal computers, mobile phones, smart phones, tablet computers, automated teller machines, automatic ticket issuing machines, access control systems, etc.). Most of these information devices have an input means for receiving information from a user, and as a means of input, a virtual keypad (virtual keyboard) displayed graphically on a screen has recently been used. For example, in online banking using a computer, a virtual keypad is displayed on a monitor, and a user can input personal information such as an account password or a security card number using a mouse.

On the other hand, in recent years, the number of users using personal mobile terminal information devices such as smart phones and tablet computers is increasing rapidly. Users use these personal information devices to access the Internet and perform various personal tasks (e-mail checking and transmission, financial services, web shopping, etc.) or leisure activities (movie watching, games). Typically, such a smartphone or tablet computer does not have a separate keyboard device, and displays a virtual keypad on a touch screen, and receives important personal information (ID, password, etc.) of the user through the virtual keypad.

The conventional virtual keypad currently used has a plurality of characters arranged in a fixed position, and the pressed virtual key is input to the IT device whenever the user presses a single virtual key. Since a typical virtual keypad is arranged in a fixed position, a user may input information by hacking the touch position from the outside. In addition, the conventional virtual keypad maintains the display state of a plurality of characters at all times, so that a malicious third party may snoop while a user inputs personal information, thereby identifying important personal information of the user.

That is, in the conventional general virtual keypad as described above, while the user inputs important personal information using the virtual keypad, the personal information may leak through the screen touch position hacking or the peeping hacking. Since external leakage of important information input to the virtual keypad may cause serious economic loss to the user, a secure virtual keypad is required to prevent the information input to the virtual keypad from leaking to the outside.

As such a secure virtual keypad technology, there is Korean Patent No. 743854. This prior patent allows the numbers to be displayed on the virtual keypad while the user touches (presses) any virtual key on the virtual keypad, and the numbers on the virtual keypad disappear while the user removes the touch on the virtual key. By changing the arrangement of the numbers displayed on the keypad, a technique is disclosed in which the information entered by the user with the virtual keypad is protected. This prior patent can protect the user's personal information from touch location hacking because the numeric arrangement of the virtual keypad is changed. In addition, this prior patent can protect the user's personal information from peeking hacks because the number of the virtual keypad is displayed and disappears at the time the user must enter.

However, these prior patents have the following problems.

First, in order to configure the virtual keypad by applying the preceding patent to not only numbers but also letters (for example, alphabets, etc.), the number of virtual keys constituting the virtual keypad increases and the size of each virtual key is inevitably reduced. When the number of virtual keys is large and the size of each virtual key is small and displayed and disappeared by changing the arrangement of numbers and letters of the virtual keypad, users find and remember the next number or letter that they want to input. After the number or letter disappears, it is difficult to accurately press the virtual key at the position.

Second, since the prior patent has to input personal information such as a password into a secure virtual keypad whose display disappears as the arrangement of numbers changes, the elderly and the visually impaired have difficulty in inputting personal information such as secret information.

Third, when the user inputs information by touching a virtual keypad displayed on the touch screen with a finger, an area of the virtual keypad covered by the finger exists so that the user can enter the virtual key containing the character to be input next. There is a problem that it is difficult to find a location, especially when the size of the screen is small, such as a personal mobile device information device more serious problem occurs.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a virtual keypad display method that can protect user input information from screen touch position hacking even for information including both numbers and letters. It is to provide.

Another object of the present invention is to provide a virtual keypad display method that allows a user to easily and accurately find the position of a character to be input regardless of the size of the screen while being safe for touch position hacking.

Another object of the present invention is to provide a virtual keypad display method for allowing a user to selectively use a secure virtual keypad.

The virtual keypad display method according to the present invention for achieving the above object, the virtual keypad includes two or more virtual keys, and displays an indication symbol on the virtual keys, so that the user to input the input target calls sequentially A virtual keypad display method according to claim 1, further comprising: a first step of obtaining information on at least two display symbols including a first input target symbol among all symbols when the user inputs a request for inputting information from the user; A second step of displaying the obtained display symbols on the virtual keys; and when an arbitrary virtual key is touched by a user, the screen controller stores the display symbol displayed on the touched virtual key and displays the next sequence of the entire symbols. Repeat information from the second step after obtaining information on at least two display symbols including an input target call. Characterized by including a third step of performing.

In addition, the virtual keypad display method according to the present invention, the virtual keypad includes two or more virtual keys, by displaying a display symbol on the virtual keys, a virtual keypad display method for the user to input the input target numbers sequentially A first step of determining whether information on display symbols necessary for inputting an input target call is stored in a storage unit when a user inputs information input from the user is requested; and as a result of the determination of the first step, the input target call A second step of displaying a virtual keypad including all symbols if information on symbols required for inputting the information is not stored in the storage unit; and when the input target symbol is touched by the virtual keypad displayed in the second step, the input A third step of storing information on display symbols necessary for inputting a target symbol to the storage; And a fourth step of obtaining the display symbol information from the storage unit and displaying the display symbol information on the virtual keys if the display symbols information necessary for inputting the input target code are stored in the storage unit. It features.

In addition, the virtual keypad display method according to the present invention, the screen control unit is a first step of providing a safe input and a general input selection environment, the screen control unit displays a secure virtual keypad when the user selects a safe input and the user Selecting an input to display a general virtual keypad to allow a user to input input sequential numbers sequentially; wherein the secure virtual keypad is composed of two or more virtual keys and indicators displayed on the virtual keys. The displaying of the secure virtual keypad in the second step may include: a first sub step of displaying, by the screen control unit, the display symbols on the virtual keys, and displaying the display symbols on the virtual keys by the screen control unit. The second sub-step of deleting the display, and if any virtual key from the user is touched, Characterized in that after storing the display sign to the control unit corresponding to the touch of the virtual keys, including the third sub-step of repeating from the first sub-step.

In addition, the virtual keypad display method according to the present invention, the virtual keypad includes two or more virtual keys, and displays a display symbol on the virtual keys to display a virtual keypad for the user to touch the virtual key displayed the input target arc In the method, the first step of the screen control unit arranged to display the display symbols on the virtual keys, and if any virtual key is touched by the user, the screen control unit stores the display symbol displayed on the touched virtual key and And a second step of displaying a virtual key touch on at least one virtual key outside the entire virtual keypad or the virtual keys.

As described above, according to the present invention, information including both numbers and letters can be input regardless of the size of the screen, and the user can selectively use a secure virtual keypad, thereby securing the user's personal information from various hacks. In addition, the convenience of finding input characters easily and accurately is improved.

1 is a schematic configuration diagram of an information apparatus to which the present invention is applied.
2 is a flowchart illustrating a method for displaying a virtual keypad of a screen according to a first embodiment of the present invention.
FIG. 3 is a diagram illustrating the virtual keypad displayed on the screen in that order when the input counter calls are “hon”.
4 is an exemplary diagram illustrating a screen displaying a safety input button and a general input button.

Hereinafter, with reference to the accompanying drawings will be described in detail a virtual keypad display method for preventing information leakage by touch location hacking according to an embodiment of the present invention.

The present invention proposes a virtual keypad display method for protecting user input information from screen touch position hacking.

1 is a schematic configuration diagram of an information apparatus to which the present invention is applied.

An information apparatus to which the present invention is applied includes a screen 11, an input unit 12, an output unit 13, a control unit 14, and a storage unit 15. When the user touches the screen 11, the input unit 12 recognizes its position and provides it to the controller 14. The output unit 13 displays the screen configured by the controller 14 on the screen 11 and outputs the screen. The control unit 14 configures a virtual keypad screen according to the present invention with reference to the display symbols stored in the storage unit 15 to be displayed on the screen 11 through the output unit 13, and the user through the input unit 12. Recognizes a menu or a virtual key touched by the controller and stores the input symbols in the storage unit 15. The storage unit 15 stores the display symbols and the input symbols and stores the program for performing the virtual keypad display method according to the present invention, and provides the program to the controller 14.

[First Embodiment]

2 is a flowchart illustrating a virtual keypad display method according to a first embodiment of the present invention.

The virtual keypad display method according to the first embodiment of the present invention is a method of displaying a plurality of symbols (numbers and letters) on a plurality of virtual keys of a virtual keypad, which can be generated by hackers hacking touch positions of the virtual keypad. To prevent information leakage.

The virtual keypad of the screen according to the first embodiment of the present invention, virtual keys of the number less than the total number of symbols (numbers 0 to 9, alphabet letters a to z and special characters) to be displayed on the virtual keypad Include. Some of the symbols are displayed on the virtual key. Only one indicator may be displayed on one virtual key, or no indicator may be displayed.

The user inputs information by touching letters or numbers corresponding to the personal information one by one in order to input important personal information, for example, an ID or a password, in which letters and numbers are mixed using a virtual keypad. In this case, the symbols displayed on the virtual keypad may always be the same while the user inputs all the symbols corresponding to the personal information, or may be changed as the user sequentially inputs the symbols corresponding to the personal information. When the symbols displayed on the virtual keypad are changed, the symbols to be entered next must be included among the displayed symbols. If the same indication symbols are always displayed, the position may be changed or may be fixed.

The present invention is applied when a user inputs personal information such as a user ID and a password to an information device. Typically, the user ID and password are composed of a plurality of symbols (including numbers, alphabet letters, special characters, etc.). . A user must input a plurality of symbols constituting his or her user ID and password in that order. In the specification of the present invention, these are referred to as input mapping characters. In addition, when the input counter symbols are input in that order, symbols are displayed on the virtual keys of the virtual keypad, respectively, which are referred to as display symbols. Among these indicators, the next sequence of input destination symbols is included. In addition, among the display symbols of the virtual keypad, a symbol input by the user is named as a user input symbol.

Referring to Figure 2 will be described in detail a virtual keypad display method according to a first embodiment of the present invention.

First, when the start of information input from the user is touched (S21), the control unit obtains display symbols necessary for inputting the first sequence of input target symbols (S22), and the display symbols obtained in step S22 to the virtual keys of the virtual keypad. Arranged and displayed (S23).

When the information input start touch is removed from the user (S24), the controller deletes the display symbols displayed on the virtual keys to display only the virtual keys (S25) and waits for the virtual key to be touched by the user. Although not shown, even if the information input start touch is removed from the user, the controller may wait for the virtual key to be touched by the user without deleting the display symbols displayed on the virtual keys.

When an arbitrary virtual key is touched by the user (S26), the symbol displayed on the touched virtual key is stored as a user input symbol (S27).

Next, the controller determines whether the input for all the input countercalls is completed (S28). If the input for all the input countercalls is not completed, the controller proceeds to step S22 and is required to input the next input countercall. It is repeated from the step of acquiring the indicator information. When the input of the input target calls is completed in step S28, a subsequent procedure is performed on the user input symbols stored in step S27 (S29).

The display symbols information necessary for inputting the input target symbol is stored in the storage unit, and step S22 may be a step of reading the display symbols information required for inputting the next sequence of input target symbols from the storage unit. On the other hand, when the display symbols information necessary for inputting the input target symbol is not stored in the storage unit, a virtual keypad including all symbols is typically output, and when the at least one input target symbol is received, the display symbol information therefrom. Can be stored in the storage.

Alternatively, display symbol information necessary for inputting an input target symbol is stored in a web server which receives the user input symbols, and step S22 receives information of display symbols necessary for inputting the next sequence of input target symbols from a web server. It may be a step. Although not shown, the display symbols corresponding to all the input target calls from the web server are read at a time and stored in the storage unit, and the necessary symbols necessary for inputting the input target symbols from the storage unit may be sequentially obtained in step S22. Here, the web server may transmit the information of the display symbols after authentication of the information device user to the information device, or may receive the information of the information on the corresponding password after receiving the user ID from the information device.

The display symbols required for inputting all the above-described input counterparts may always be the same or may vary depending on the next-order input counterpart. If the display symbols are the same regardless of the order of the input recall symbols, the display symbols should include all the input recall symbols.

For example, when the input recall symbols are "honara0701", all the display symbols are always the same as "ahnors0147", and the displayed position may always be the same, and only the display position is changed each time the input recall symbols are entered in sequence. It may be.

Alternatively, as shown in Table 1 below, the display symbols may vary according to the input counterpart. The symbol reference information is stored in the storage unit or the web server, and a table matching the symbol reference information and the symbol may be stored in the storage unit or the web server.

Input Call Symbol Reference Information Symbols a to e (a, 0) (a to e & 0 to 4) f to j (f, 0) (f to j & 0 to 4) k to o (k, 0) (k to o & 0 to 4) p to t (p, 5) (p to t & 5 to 9) u to x, y / z (u, 5) (u to x, y / z, 5 to 9) 0 to 4 (a, 0) (a to e & 0 to 4) 5 to 9 (p, 5) (p to t & 5 to 9)

For example, if the input target calls are "honara0701", step S22 obtains reference numeral reference information as shown in Table 2 below according to the input order of the input target calls, and is obtained by using a matching table as shown in Table 1 below. Acquire indicators matching the reference information. The display symbols or the display symbol reference information according to the input target call can be modified by any number.

Input Call Symbol Reference Information Symbols h (f, 0) (f to j & 0 to 4) o (k, 0) (k to o & 0 to 4) n (k, 0) (k to o & 0 to 4) a (a, 0) (a to e & 0 to 4) r (p, 5) (p to t & 5 to 9) a (a, 0) (a to e & 0 to 4) 0 (a, 0) (a to e & 0 to 4) 7 (p, 5) (p to t & 5 to 9) 0 (a, 0) (a to e & 0 to 4) One (a, 0) (a to e & 0 to 4)

FIG. 3 is a diagram illustrating the virtual keypad displayed on the screen in that order when the input counter calls are “hon”. First, when a user touches an input window, a virtual keypad is displayed. When the user touches the 'view' button, as shown in (a) of FIG. 3, the user recognizes the start of information input and obtains the indicators 32 from the reference numeral reference information of Table 2 to the virtual keys 31. Place it and display it. The storage unit stores the reference information and the display rule, or the symbol information and the display rule are stored. The reference information is read and the display rule (here, the display rule defines how and what characters are displayed). Or display the symbol information and display it according to the display rules (the display rules here indicate how to display them).

When the user removes the touch of the security input window, as shown in (b) of FIG. 3, the display symbols are deleted and only the virtual keys 31 are displayed. In this state, the user touches a virtual key in which 'h' is displayed on the virtual keypad of (a). When the user touches the virtual key, the user corresponds to the next sequence 'o' as shown in (c) of FIG. 3. Indication marks are displayed on the virtual keys. When the user removes the touch of the virtual key, only the virtual keys are displayed as shown in (d). In this state, when the user touches the virtual key in which 'o' is described, display symbols corresponding to the next sequence symbol 'n' are displayed on the virtual keys as shown in FIG.

In FIG. 3, when the user removes the virtual key touch, the display symbols disappear and only the virtual keys are displayed. However, the present invention is not limited thereto, and the display symbols do not disappear even when the user removes the touch of the security input window. It may be. In addition, when the touch is removed, the next order symbols may be displayed on the virtual keys.

The input call numbers may be a user ID or a password.

The symbol information or the symbol reference information stored in the storage unit or the web server may be encrypted and stored or transmitted.

The prior patent (Korean Patent No. 743854) mentioned in the prior art uses a virtual keypad consisting of four columns * three rows of virtual keys to rearrange the display symbols and remove the touch each time the user touches the input target symbols. It is described a technology that disappears when the symbols. According to this prior patent, the user must check the position of the next sequence of input target calls among the display symbols displayed on the virtual keypad while touching the input target call.

When applying the prior patent to the touch screen, while the user touches the virtual key where the input target arc was displayed with a finger, if the next sequence input target arc is displayed on the virtual key covered by the finger, The problem is that it becomes difficult to find.

In the present invention, in order to solve this problem, the finger touches the virtual key by arranging the virtual key arrangement of the virtual keypad in one of 2 rows * 5 columns, 1 row * 10 columns, 5 rows * 2 columns, 10 rows * 1 columns. Minimize the area covered by.

In addition, the number of virtual keys is configured to be larger than the number of display symbols, and the display symbols are not displayed in an area covered by a touch using a finger. For example, in the case of a virtual keypad displaying 10 display symbols, the virtual keys are arranged in at least 2 rows * 6 columns or 6 rows * 2 columns, and include the left, right, or bottom of the virtual key in which the current sequence number is displayed. Do not display symbols on virtual keys.

On the other hand, when arranging the display symbols on the virtual key, the next sequence of the input target symbols is not displayed in the area covered by the finger, and the user is separated from the area where the symbol is displayed for each virtual key and the area touched by the user. The symbol displayed while touching is not hidden. In order to implement this, it is preferable that information on an indication symbol displayed on an area covered or hidden by a finger is stored in a storage unit or a web server.

Second Embodiment

As the first embodiment of the present invention or the prior patent No. 743854, the security virtual keypad that changes the position where the symbols are displayed unconditionally applied to the information device, the visually impaired person can input the personal information itself using the information device. There is no accessibility to the visually impaired. In order to improve this, in the present invention, the safety input button 41 and the general input button 42 are displayed on the screen as shown in FIG. 4 before displaying the input screen of the input counter calls. The security virtual keypad is displayed only when 41) is selected.

Here, the secure virtual keypad is a virtual keypad in which the arrangement of the indicators displayed on the virtual keys is changed. In addition, the secure virtual keypad may remove the symbols so that only the virtual keys remain.

Of course, when the user selects the general input button 42, the symbols are displayed in a fixed position as in a conventional virtual keypad. In addition, in the present invention, instead of selecting the safety input and the general input every time, it may be set in advance to operate only as the safety input as a personal information input method. When the safety input is set, the general input setting button is displayed so that it can be changed to the normal input. When the normal input is set, the safety input setting button is displayed so that it can be changed to the safety input.

[Third Embodiment]

Next, a virtual keypad display method of a screen according to a third embodiment of the present invention will be described.

According to a method of displaying a virtual keypad of a screen according to a third embodiment of the present invention, a hacker hacks a screen of an information device by preventing a virtual key touched by a user and a non-touched virtual key from being separated on the screen. Prevent information leakage that may occur.

In detail, an information apparatus typically displays a virtual keypad including a plurality of virtual keys on a screen and waits for a user's input. When the user touches any virtual key, the information device displays the virtual key touched by the user or the virtual key. The shape or color of the displayed symbol changes. In this case, when the hacker hacks the screen of the information device, the virtual key touched by the user and the symbol thereof may be found, and the user's personal information may be leaked.

The present invention proposes a method for preventing the user from knowing the touched virtual key by screen hacking even if the user touches any virtual key. The easiest method is to maintain the entire virtual keypad of the information device in the same shape as before the touch even if the user touches any virtual key. However, in this case, there is a problem that the user cannot recognize whether the virtual key is pressed or not. In order to solve this problem, in the present invention, when an arbitrary virtual key is touched, the user changes the shape of the virtual keypad outline or changes the shape of an arbitrary virtual key other than the virtual key touched by the user. Make sure you know if you've lost.

The virtual keypad of the present invention can prevent the leakage of the user's personal information from the touch position hacking, can prevent the leakage of the user's personal information from the screen hack, these two techniques can be applied in combination. If you use the touch location anti-hacking virtual keypad, you can use the screen anti-hacking vaccine together. If you use the screen anti-hacking virtual keypad, the touch location anti-hacking vaccine is used together. It is preferable.

The technical spirit of the present invention has been described above with reference to the accompanying drawings, but this is by way of example only for describing the best embodiment of the present invention and not for limiting the present invention. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

11 screen 12 input unit
13 output unit 14 control unit
15: storage

Claims (20)

A virtual keypad includes two or more virtual keys, and displays a display symbol on the virtual keys to allow a user to input input target numbers sequentially.
A first step of obtaining information on at least two display symbols including a first input target symbol among all symbols by the screen controller when a user starts to input information;
A second step of displaying, by the screen controller, the obtained display symbols on the virtual keys;
When an arbitrary virtual key is touched by the user, the screen controller stores the display symbol displayed on the touched virtual key and acquires information on at least two or more display symbols including a next order input character among the entire symbols. And a third step of repeating the second step. The method of claim 1, wherein after the second step, the third step is performed after deleting the display of the display symbols displayed on the virtual keys. The method of claim 1, wherein the indicators are always the same. 4. The method of claim 3, wherein the second step after the third step changes the positions of the display symbols displayed on the virtual keys. The virtual keypad display method according to claim 1, wherein the display symbols vary according to the next input sequence call. The method of claim 1, wherein the display symbols are stored in a memory device. The method of claim 1, wherein the information on the indicators is received from a web server. The method of claim 1, wherein the input counter call is user ID information. The method of claim 1, wherein the input target call is password information. 3. The method of claim 2, wherein the second step is such that the next symbols are not displayed on the virtual keys around the virtual keys on which the current sequence number is displayed. The virtual keypad display as claimed in claim 1, wherein the third step includes a second step of displaying a virtual key touch on the entire outside of the virtual keypad when an arbitrary virtual key is touched by a user. Way. The method according to any one of claims 1 to 11, wherein the screen controller provides a safety input or a general input selection environment to a user, and when the safety input is selected by the user, the first to third steps are performed. Virtual keypad display method characterized in that. The method of claim 3, wherein the positions of the display symbols displayed on the virtual keys are the same. A virtual keypad includes two or more virtual keys, and displays a display symbol on the virtual keys to allow a user to input input target numbers sequentially.
A first step of, when the user requests to start inputting information, the screen controller obtains information on the symbols consisting of some of the symbols;
A second step of displaying, by the screen controller, the obtained display symbols on the virtual keys;
When an arbitrary virtual key is touched by a user, the screen controller includes a third step of storing an indication symbol displayed on the touched virtual key.
The number of the virtual keys and the number of the display symbols is less than the number of the total symbols, and the display symbols include all of the input target symbols. 15. The method of claim 14, wherein the third step is repeated until all of the input target calls have been entered. 16. The method of claim 15, wherein the positions of the display symbols displayed on the virtual keys are changed each time the input target symbols are input. The method of claim 15, wherein the positions of the display symbols displayed on the virtual keys are the same until all of the input counter-calls are input.
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