KR20230144886A - A secure keypad displaying system based on group division and dual touch - Google Patents

Abstract

The present invention divides the keypad keyboard into at least two groups, displays the keyboard of the corresponding group when a specific group is selected among the keypad keyboards on the screen, and receives the corresponding character when a specific character is selected from the displayed group keyboard, group division and A dual touch-based security keypad creation system that displays a virtual keypad and a grid pad on the screen of the touch screen, divides the keyboards of the virtual keypad into multiple groups, and displays a keyboard of one selected keyboard group in the grid pad. a keyboard display unit that displays; a keyboard input unit that receives a touch input on a virtual keypad or grid pad displayed on the screen, and selects a group at a corresponding position if it is on the virtual keypad, or selects a keyboard at a corresponding position if it is a position on the grid pad; And, when a specific group is selected through the keyboard input unit, the keyboard display unit controls to arrange and display the keyboards of the corresponding group on the grid pad, and when a specific keyboard is selected through the keyboard input unit, characters of the corresponding keyboard are displayed. A configuration including a keyboard control unit that recognizes input characters is provided.
By using the above system, the keypad keyboard is divided and grouped to display the keyboard in keyboard group units, thereby reducing the number of characters in the grid pad of each group and enlarging the size, making it easier to find characters to touch. You can.

Description

{ A secure keypad displaying system based on group division and dual touch }

The present invention divides the keypad keyboard into at least two groups, displays the keyboard of the corresponding group when a specific group is selected among the keypad keyboards on the screen, and receives the corresponding character when a specific character is selected from the displayed group keyboard, group division and This relates to a dual touch-based security keypad creation system.

Recently, as the Internet and computer technology have developed rapidly, important tasks such as Internet banking, stock trading, and electronic payments at Internet shopping malls are being performed through mobile terminals such as individual or corporate smartphones. In financial transactions or electronic commerce through these mobile terminals, users must go through an authentication process by entering an ID, password, certificate password, credit card number, or resident registration number to prove their identity.

However, in the process of entering such important information with the keyboard, personal information obtained by a malicious third party obtains the keyboard input information through spyware or keystroke logger installed on the mobile terminal. Cases of illegal theft are increasing. In other words, a virtual keypad is used, but since most keypads are almost fixed, malicious code running on the smartphone can obtain input information by checking the touched location.

To prevent this, the prior art displays the keypad keyboard in a randomly arranged manner [Patent Document 1]. The above prior art provides a random arrangement of numbers on the password keyboard and prevents leakage of the password by changing the position at which the password is pressed each time.

In particular, when you need to input both letters and numbers, a QWERTY keyboard is provided and the arrangement of letters/numbers within the keyboard is displayed randomly.

However, because the screen of the smart phone is small, a single character appears small on the QWERTY keyboard, so there is a high possibility that a typo will occur if the user touches the screen incorrectly when entering the password. In order to prevent such typos, there are cases where the last character entered is displayed to the user by pressing it on the screen. However, if you display text like this, other people may peek over your shoulder. In particular, the password can be inferred by recording it with Google Glass or a high-resolution smartphone.

Therefore, technology is needed to easily enter security information such as passwords using the QWERTY keyboard even on small screens such as smartphones.

Domestic Patent Publication No. 10-0483589 (announced on April 15, 2005)

The purpose of the present invention is to solve the problems described above, dividing the keypad keyboard into at least two groups, displaying the keyboard of that group when a specific group is selected among the keypad keyboards on the screen, and selecting a specific group among the displayed group keyboards. It provides a group division and dual touch-based security keypad creation system that receives the corresponding character when it is selected.

To achieve the above object, the present invention relates to a group division and dual touch-based security keypad generation system installed in a smart terminal equipped with a touch screen, wherein a virtual keypad and a grid pad are displayed on the screen of the touch screen. A keyboard display unit that divides the keyboards of the virtual keypad into a plurality of groups and displays keyboards of one selected keyboard group on the grid pad; a keyboard input unit that receives a touch input on a virtual keypad or grid pad displayed on the screen, and selects a group at a corresponding position if it is on the virtual keypad, or selects a keyboard at a corresponding position if it is a position on the grid pad; And, when a specific group is selected through the keyboard input unit, the keyboard display unit controls to arrange and display the keyboards of the corresponding group on the grid pad, and when a specific keyboard is selected through the keyboard input unit, characters of the corresponding keyboard are displayed. It is characterized by including a keyboard control unit that recognizes input characters.

In addition, the present invention provides a security keypad creation system based on group division and dual touch, wherein the keyboard display unit displays a keypad window on the screen of the touch screen, a group display area that displays groups, and a keyboard display of the selected group. It is characterized by being divided into a keyboard display area.

In addition, the present invention is a security keypad creation system based on group division and dual touch, wherein the keyboard display unit divides the virtual keypad into a plurality of groups, and each group has a different color or area so that the groups can be distinguished from each other. It is characterized by being displayed as .

In addition, the present invention is a security keypad creation system based on group division and dual touch, wherein the grid pad is set to a size of 3 × 4 or 4 × 3, and the number of keyboards in each group is limited to 12 or less. .

In addition, the present invention is characterized in that, in the group division and dual touch-based security keypad creation system, each keyboard in the grid pad is arranged according to the arrangement order of the virtual keypad.

In addition, the present invention relates to a security keypad creation system based on group division and dual touch, in which each keyboard in the grid pad is randomly arranged, and after touching the keyboard in the grid pad, the keyboard arrangement is in the current random state. It is characterized by maintaining or updating a random state.

In addition, the present invention is characterized in that in the group division and dual touch-based security keypad creation system, the virtual keypad is a QWERTY keyboard type keypad.

In addition, the present invention is a security keypad creation system based on group division and double touch, wherein a plurality of group buttons are displayed instead of the virtual keypad, and when the corresponding group button is touched, the corresponding group is selected.

As described above, according to the group division and dual touch-based security keypad creation system according to the present invention, the keypad keyboard is divided and grouped and the keyboard is displayed in keyboard group units, thereby reducing the number of characters in the grid pad in group units. The size can be enlarged, which makes it easier to find characters to touch.

1 is a block diagram of the overall system configuration for implementing the present invention.
Figure 2 is a block diagram of the configuration of a smart terminal according to an embodiment of the present invention.
Figure 3 is a block diagram of the configuration of a group division and dual touch-based security keypad generation system according to the first embodiment of the present invention.
Figure 4 is an exemplary diagram of a screen displaying a keyboard group and a group keyboard according to the first embodiment of the present invention.
Figure 5 is an exemplary diagram of a virtual keypad according to the first embodiment of the present invention.
Figure 6 is an example of randomly displaying a keyboard within a grid pad according to the first embodiment of the present invention.
Figure 7 is an exemplary diagram of a method of maintaining or updating a random keyboard arrangement within a grid pad according to the first embodiment of the present invention.
Figure 8 is an example view of a screen highlighting a selected group in a virtual keypad according to the first embodiment of the present invention.
Figure 9 is an exemplary diagram of a keypad window according to a second embodiment of the present invention.
Figure 10 is an exemplary diagram of the keypad window of the first screen according to the third embodiment of the present invention.
Figure 11 is an exemplary diagram of a second stage grid pad window according to the third embodiment of the present invention.

Hereinafter, specific details for implementing the present invention will be described with reference to the drawings.

In addition, in explaining the present invention, like parts are given the same reference numerals, and repeated description thereof is omitted.

Next, the configuration of the entire system for implementing the present invention will be described with reference to FIG. 1.

As shown in FIG. 1, the entire system according to an embodiment of the present invention consists of a smart terminal 10 used by the user and a keypad creation system 30 installed in the smart terminal 10.

First, the smart terminal 10 is a mobile terminal used by a user and is equipped with a typical computing function, such as a smartphone or phablet. In particular, the smart terminal 10 is a terminal in which a mobile application or computer program can be installed and executed.

In addition, as shown in Figure 2, the smart terminal 10 includes a display 11 capable of displaying a screen, an input device 12 such as a touch panel, a storage medium 15 for storing data or programs, and a mobile communication network. /It consists of a communication unit (16) that communicates through a network such as the Internet, and a central processing unit (18) that can execute programs such as installed applications. In particular, the display 11 and the input device 12 are integrated into a touch screen 13 so that a touch can be performed on the displayed screen.

Next, the keypad creation system 30 is a program system installed in the smart terminal 10, which creates a virtual keypad for inputting characters and obtains the touched characters as input data.

That is, the keypad creation system 30 displays a virtual keypad composed of a plurality of characters on the screen of the touch screen 13, and when the user touches the screen, it obtains the characters of the keypad corresponding to the touch position as input data.

In particular, the keypad creation system 30 divides the keyboard of the virtual keypad into multiple groups and displays them, and when one group is selected by the user's touch, the characters of the corresponding keypad group are displayed on the screen. And when a character in the displayed keypad group is selected, the corresponding character is obtained as input data.

Meanwhile, the keypad creation system 30 may be a program system built into the operating system of the smart terminal 10. Alternatively, the keypad creation system 30 may be a program system plugged in and installed as an input system for the operating system of the smart terminal 10.

Next, the configuration of the group division and dual touch-based security keypad generation system according to the first embodiment of the present invention will be described in more detail with reference to FIGS. 3 to 7.

As shown in FIG. 3, the group division and dual touch-based security keypad creation system 30 according to the first embodiment of the present invention includes a keyboard display unit 31 that displays a keypad keyboard, and a keyboard input unit that receives input on the keypad keyboard. (32), and a keyboard control unit 35 that controls keyboard display and input. In addition, it may further include a storage unit 38 for storing necessary data.

First, the keyboard display unit 31 displays a keyboard group (or entire keypad) and/or a group keyboard (or grid pad) on the screen of the touch screen 13.

Figure 4 illustrates a screen displaying a keyboard group and a group keyboard.

As shown in FIG. 4, the keyboard display unit 31 displays a keypad window 60 on the screen 50. The keypad window 60 is displayed as a pop-up window on the screen 50. Preferably, the keypad window 60 is displayed at the bottom of the screen 50, and the data input window 51 is displayed at the top of the screen 50.

The data input window 51 is a screen for inputting data from an application such as an application (or mobile application). That is, the characters that the user selects in the keypad window 60 are input as data in the data input window 51.

Meanwhile, as shown in FIG. 4, the keypad window 60 is divided into a group display area 61 that displays keyboard groups and a keyboard display area 62 that displays keyboards of a selected group.

As shown in FIG. 5, the keyboard display unit 31 displays the entire keypad keyboard (or virtual keypad) in the group display area 61, dividing the entire virtual keypad into multiple groups.

In particular, each keyboard is displayed in a standard arrangement within the virtual keypad on the screen. The standard layout refers to the layout of the corresponding keyboard (or QWERTY keyboard) that is used as a standard. By displaying it in a standard layout, users are familiar with the layout of the keyboard (or QWERTY keyboard) and can easily find the characters they want.

At this time, preferably, the virtual keypad is displayed as a QWERTY keyboard. The QWERTY keyboard is a typical keyboard layout where all characters are arranged on each keyboard.

Additionally, the keyboard display unit 31 divides the keyboard (virtual keypad) in the standard arrangement into multiple groups and displays the divided groups (or divided groups) so that they can be distinguished from other groups. Preferably, each group is displayed in a different color or area.

As shown in Figure 5a, an area can be set for each group and the color of the area can be set differently. That is, each group area has a different color. Alternatively, as shown in Figure 5b, the colors for each group can be different from each other, and the color of each keyboard can be displayed as the color of the group to which it belongs.

In the example of Figure 5, the entire keypad keyboard is divided into five groups. Group 1 consists of the keys { 1, 2, 3, 4, 5, Q, W, E, R, T }, and group 2 consists of { 6, 7, 8, 9, 0, Y, U, I , O, P }. Additionally, group 5 consists of { -, =, [, ], ;, ', \, ,, ., /, `}.

Additionally, as shown in Figure 5, keyboards (keyboards for each character) belonging to one group may exist apart from each other and not adjacent to each other. In the example of FIG. 5, the special characters of group 5 are separated from each other on both sides, but all constitute one group. In particular, the letter or keyboard "`" is located at the left end, and keyboards such as -, =, [, ] are located at the right.

Also, preferably, the keyboard display unit 31 limits the number of keyboards in each group to 12 or less. This is to arrange the keyboards in a 3×4 or 4×3 grid pad when displaying a group of keyboards in the keyboard display area 62.

Additionally, the keyboard display area 62 displays keyboards within the selected group (or specific group) on the screen.

Preferably, as shown in FIG. 4, the keyboards of the corresponding group are displayed on a grid pad of 3 × 4 or 4 × 3 size. Within each grid, the keyboards of the corresponding group are placed.

Each keyboard within the grid pad is arranged according to the arrangement order of the virtual keypad (the entire keypad). Because it is arranged in the same arrangement order as the entire keypad, users can easily find the keyboard for the character they want to input.

Additionally, as another example, each keyboard within the grid pad may be randomly arranged. As shown in Figure 6, in the case of a secure keypad (when entering data requiring security, such as a password or personal information), the keyboards within the group are randomly arranged. Therefore, input characters according to the input position of the keyboard are not exposed.

Additionally, after touching the keyboard within the grid pad, the keyboard arrangement maintains the current random state or changes the random state. That is, in the latter case, the keyboard arrangement is randomly updated every time a character is selected by touching the keyboard.

In the example of FIG. 7, (a) illustrates a state of touching the number 1. At this time, (b) represents a case where the random keyboard arrangement of (a) is maintained, and (c) represents a case where the keyboard arrangement has been randomly arranged again and changed to a state different from the arrangement state of (a).

Additionally, in addition, each keyboard in the grid pad is arranged in alphabetical order or according to the frequency (or frequency of appearance) of the characters in the grid. In other words, the higher the frequency of appearance, the sooner it is arranged.

Next, the keyboard input unit 32 receives a touch input on the entire keypad keyboard or group keyboard displayed on the screen, and selects the group (or group area) or keyboard (or keyboard area) at the corresponding location.

That is, the user looks at the keypad keyboard or grid pad displayed on the screen and touches the character/keyboard (or keyboard area) or group area he or she wants to input on the keyboard. Check the group area or keyboard area to which the touched position belongs, and the confirmed group or keyboard is the selected group or keyboard.

Next, the keyboard control unit 35 controls keyboard display and input.

That is, the keyboard control unit 35 displays all virtual keypads divided into groups and grid pads of a specific group on the keypad window 60 through the keyboard display unit 31. In particular, preferably, within the keypad window 60, a virtual keypad divided into groups is displayed in the group display area 61, and the keyboards of the selected group are arranged in the keyboard display area 62.

At this time, the keyboard control unit 35 recognizes the group selected on the virtual keypad of the group display area 61 and controls the keyboard of the recognized group to be displayed in the grid pad. Therefore, each time the user selects a different group on the virtual keypad, the keyboards in the grid pad change. That is, when group 3 is selected in the group display area 61, the keyboards of group 3 are displayed on a grid pad in the keyboard display area 62.

Meanwhile, preferably, as shown in FIG. 8, the keyboard control unit 35 can highlight the selected group on the virtual keypad. That is, the entire virtual keypad is displayed in the group display area 61, and groups divided from the virtual keypad are displayed. At this time, the currently selected group can be displayed as a highlight.

In addition, the keyboard control unit 35 recognizes the keyboard selected on the grid pad of the keyboard display area 62 through the keyboard input unit 32, and recognizes the recognized characters of the corresponding keyboard as input characters. That is, the keyboard control unit 35 recognizes keyboard characters input on the grid pad as input characters.

Next, the configuration of the group division and dual touch-based security keypad generation system according to the second embodiment of the present invention will be described in more detail with reference to FIG. 9.

The second embodiment of the present invention has the same structure as the first embodiment, but there is a difference in the way the keyboard is displayed on the screen. Below, only the differences from the first embodiment will be described. Therefore, for the second embodiment not described below, refer to the description of the first embodiment above.

As shown in FIG. 9, the keyboard display unit 31 displays divided group buttons instead of a virtual keypad in the group display area 61. That is, while the first embodiment displays an image of a virtual keypad, the second embodiment displays buttons of each division group.

Additionally, when the group button of a split group is touched, the keyboard control unit 35 recognizes the group corresponding to the touched group button and arranges the keyboards of the recognized group within the grid pad.

Next, the configuration of the group division and dual touch-based security keypad creation system according to the third embodiment of the present invention will be described in more detail with reference to FIGS. 10 and 11.

The third embodiment of the present invention has the same structure as the first or second embodiment, but differs in the way the keyboard is displayed on the screen. Below, only the differences from the first or second embodiment will be described. Therefore, for the third embodiment not described below, refer to the description of the first or second embodiment above.

As shown in FIG. 10, the keyboard display unit 31 displays a first screen (or group display screen) that displays divided groups of the virtual keypad. And when you select a group on the first screen, a screen where both the virtual keypad (group) and the grid pad are displayed is displayed, as shown in Figure 4 or Figure 9.

Also, preferably, as shown in FIG. 10, the keyboard display unit 31 provides guidance by displaying characters included in the corresponding group on the first screen of the keypad window 60.

Additionally, the keyboard display unit 31 may display a virtual keypad as shown in FIG. 5, that is, a virtual keypad divided into multiple groups, on the first screen of the keypad window 60.

Additionally, when one group is selected on the group display screen, the keyboard display unit 31 displays the keyboards of the corresponding group (selected group) on a grid pad.

After selecting a group, there are various ways to place the group's keyboard on the grid pad in the second step screen. An example when selecting the number of groups in FIG. 10 is as shown in FIG. 11.

First, it is arranged in alphabetical or ascending numerical order.

It is easy to find a keyboard by ordering and arranging the keyboards in a group as shown in Figure 11(a). If the location is fixed and the touched location is identified, there is a possibility of inference, but it can be avoided by attacking by moving the keyboard within the group.

Next, there is a random arrangement method.

There is difficulty in finding the desired keyboard by mixing the order of the keyboard as shown in Figure 11(b), but it is not difficult to find because there are less than 10 keyboards. It can change randomly every time you touch it, making it resistant to attacks on the touched location.

Next, it is arranged in the same way as a PC keyboard (or QWERTY keyboard).

As shown in Figure 11(c), users who are familiar with PC keyboards can quickly find the keyboard, making input convenient, but there are parts where the position is fixed, so there is a possibility of inferring the touched location when determining the location of the touch. You can avoid attacks by moving the keyboard within the group.

Next, it is arranged according to the frequency of use in the English dictionary.

As shown in Figure 11(d), the decryption method uses an attack using frequency analysis in classical cryptography, allowing users to easily find the desired character by arranging it based on frequently used characters. According to the frequency of commonly used alphabets in English dictionaries, four groups can be divided into 1) EARIOTN 2) SLCUDPMH 3) GBFYWKV 4) XZJQ.

Lastly, there are cases where domestic users create passwords based on Hangul. In this way, you can consider arranging the keypad according to the password generation pattern for each country, region, or organization.

Figure 11 shows that in the second step after selecting the group (GP#2) on the first screen, (a) shows the high-frequency letters arranged in alphabetical order, (b) shows them arranged randomly, and (c) shows It is arranged in alphabetical order. (d) places the characters of the 2nd row of the PC keyboard in order on the first line, the characters of the 3rd row on the 2nd line, and the characters of the 4th row on the 3rd line. However, if there is not enough space, the remaining characters are placed on the 2nd line. It is a method of placing it in a place.

In addition to the examples above, keyboards in a group can be arranged in a grid pad in various ways.

Next, the effects of the present invention will be explained.

The present invention has the following effects according to the above configuration.

First, since input can be made continuously on the grid pad, the desired number of characters (n) can be touched approximately 1.5 x n times.

In addition, since the number of keyboards in the security keypad (or security grid pad) is within 6 to 10 through the group keyboard, it is 4 to 6 times larger than the existing keypad (or QWERTY keyboard).

In addition, because the position of the keypad (grid pad) on the group keyboard can be rearranged randomly, it is difficult to confirm the touched characters through location determination until you see them in person.

Above, the invention made by the present inventor has been described in detail based on examples, but the present invention is not limited to the examples and, of course, can be changed in various ways without departing from the gist of the invention.

10: Smart terminal 30: Keypad creation system
31: keyboard display unit 32: keyboard input unit
35: keyboard control unit 38: storage unit

Claims (7)

In a group division and dual touch-based security keypad creation system installed on a smart terminal equipped with a touch screen,
a keyboard display unit that displays a virtual keypad and a grid pad on the screen of the touch screen, dividing the keyboards of the virtual keypad into a plurality of groups, and displaying keyboards of one selected keyboard group on the grid pad;
a keyboard input unit that receives a touch input on a virtual keypad or grid pad displayed on the screen, and selects a group at a corresponding position if it is on the virtual keypad, or selects a keyboard at a corresponding position if it is a position on the grid pad; and,
When a specific group is selected through the keyboard input unit, the keyboard display unit controls to arrange and display the keyboards of the corresponding group on the grid pad. When a specific keyboard is selected through the keyboard input unit, the characters of the corresponding keyboard are input. A group division and dual touch-based security keypad creation system comprising a keyboard control unit that recognizes.
According to paragraph 1,
The keyboard display unit divides the virtual keypad into a plurality of groups and displays each group in a different color or area so that the groups can be distinguished from each other.
According to paragraph 1,
The grid pad is set to a size of 3×4 or 4×3, and the number of keyboards in each group is limited to 12 or less. A security keypad creation system based on group division and dual touch.
According to paragraph 1,
A security keypad creation system based on group division and dual touch, characterized in that each keyboard in the grid pad is arranged according to the arrangement order of the virtual keypad.
According to paragraph 1,
Each keyboard within the grid pad is randomly arranged, and after touching a keyboard within the grid pad, the arrangement of the keyboard maintains the current random state or updates the random state based on group division and double touch. A secure keypad generation system.
According to any one of claims 1 to 5,
A group division and dual touch-based security keypad creation system, wherein the virtual keypad is a QWERTY keyboard type keypad.
According to paragraph 1,
A security keypad creation system based on group division and double touch, wherein a plurality of group buttons are displayed instead of the virtual keypad, and when the corresponding group button is touched, the corresponding group is selected.

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