KR101509353B1 - Method and apparatus for key input - Google Patents

Abstract

Disclosed are a method and an apparatus for inputting a key. The method for inputting a key in the apparatus includes the steps of: (a) outputting a key pad including a plurality of key groups, which include a plurality of keys different from each other; (b) randomly outputting the keys, assigned to a selected key group, in a key selection area after the key group is selected on a key pad; (c) being provided with selected one of the keys which is output randomly in the key selection area; and (d) recognizing a password by combining the selected key.

Description

TECHNICAL FIELD The present invention relates to a key input method and apparatus,

More particularly, the present invention relates to a key input method, and more particularly, to a method of grouping keys arranged in each row in a basic key arrangement into a plurality of key groups, randomly arranging keys assigned to the selected key group in a predetermined area, The present invention relates to a key input method and apparatus for inputting a key.

Computers, smart phones, and the like. As the Internet environment develops, it becomes common to input passwords and various personal information when using mobile banking, e-commerce, various content providing sites, and the like. In addition, hacking techniques for abusing personal information are increasing day by day.

Currently, a method for arbitrarily changing the position of each key by adding spaces to the keypad when entering a password or an authorized certificate when accessing various financial security sites is widely used. As shown in FIG. 1, the mtranskey keypad input method is a method of arranging blanks at arbitrary positions at every authentication and changing the key arrangement so that the keys are not arranged at fixed positions. As a result, when the user inputs a password at the time of authentication, the key input position is changed every time, thereby preventing the password from being exposed from the coordinate attack.

According to the MTRANSKEY input method, in the case of the number 1, it is placed in the first row first column or in the first row second column. That is, the probability that the number 1 is placed in the first row and the first row is 10/11, and the probability of being placed in the first row and the second row is 1/11. Table 1 below shows placement probabilities of the respective keys arranged in the first row and the second row according to their placement positions and placement positions, respectively.

key Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 Column 7 Column 8 Column 9 10 columns Column 11 '1', 'q' 10/11 1/11 0 0 0 0 0 0 0 0 0 '2', 'w' 0 9/11 2/11 0 0 0 0 0 0 0 0 '3', 'e' 0 0 8/11 3/11 0 0 0 0 0 0 0 '4', 'r' 0 0 0 7/11 4/11 0 0 0 0 0 0 '5', 't' 0 0 0 0 6/11 5/11 0 0 0 0 0 '6', 'y' 0 0 0 0 0 5/11 6/11 0 0 0 0 '7', 'u' 0 0 0 0 0 0 4/11 7/11 0 0 0 '8', 'i' 0 0 0 0 0 0 0 3/11 8/11 0 0 '9', 'o' 0 0 0 0 0 0 0 0 2/11 9/11 0 '0', 'p' 0 0 0 0 0 0 0 0 0 1/11 10/11

Referring to Table 1, it can be seen that the placement probabilities of the m trans-keys are different from each other according to the arrangement positions of the keys. Therefore, it is necessary to study the key input method which has more security.

The present invention is characterized in that the keys assigned to each row in the basic key arrangement are grouped into a plurality of key groups and the keys assigned to the selected key group are randomly arranged in a predetermined area and output, A key input method and a device therefor.

In addition, the present invention provides a key input method and apparatus that can reduce errors due to key input by randomly arranging only keys assigned to a key group in a key selection area.

According to an aspect of the present invention, a key input method is provided.

According to an embodiment of the present invention, there is provided a method of inputting a key in an input device, the method comprising: (a) outputting a keypad including a plurality of key groups, each of the key groups including a plurality of different keys; (b) randomly outputting a plurality of keys assigned to the selected key group to a key selection region when any one of the key groups is selected on the keypad; (c) selecting any one of the randomly output keys in the key selection region; And (d) recognizing a password by combining the selected keys.

The keypad may be configured to set a plurality of keys included in each row in a basic key arrangement as n (natural number) groups, to set a plurality of keys included in at least one column as a group, or to set N A plurality of keys included in the XM (natural number) matrix can be set as a group.

The primary key arrangement may be a "QWERTY" key arrangement or an "ABC" key arrangement.

The key selection area may include an a X b key arrangement in the center area of the key pad, where a and b are natural numbers.

The key group and key selection may be selected through motion recognition of the input device.

The step (b) may further include at least one blank key to randomly output the blank key to the predetermined area.

The steps (a) through (c) may be repeated until all the keys corresponding to the respective digits of the password are input.

According to another aspect of the present invention, an input device is provided.

According to an embodiment of the present invention, there is provided an input device for inputting a key, comprising: an output unit for outputting a keypad including a plurality of key groups, each of the key groups including a plurality of different keys, And a key selection area for outputting a plurality of keys assigned to the selected key group among the key groups; An input unit for selecting one of the key groups in the keypad and selecting one of the keys when the plurality of keys assigned to the selected key group are randomly output to the key selection region; And a control unit for recognizing a password by combining the selected keys.

And a motion sensing unit for sensing motion of the input device. The input unit may receive the key group and the key according to the motion sensed by the motion sensing unit.

According to an embodiment of the present invention, there is provided a key input method and an apparatus thereof, wherein keys grouped in each row in a basic key arrangement are grouped into a plurality of key groups, and keys assigned to the selected key group are grouped into a predetermined area There is an advantage that the security according to the password input can be strengthened.

Also, according to the present invention, only the keys assigned to the key group are randomly arranged in the key selection area, thereby inputting an input key.

1 is a diagram illustrating a conventional key input method.
2 is a flowchart illustrating a method of inputting a key in an input device according to an embodiment of the present invention;
Figures 3 and 4 illustrate a keypad according to one embodiment of the present invention.
5 to 7 are views illustrating a screen in which keys assigned to a selected key group are randomly output according to an embodiment of the present invention.
8 is a block diagram schematically illustrating an internal configuration of an input device according to an embodiment of the present invention;

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In the present invention, a keypad in which a plurality of keys are allocated in a basic key arrangement is output, and when a key group is selected, a plurality of keys assigned to the selected key group are randomly placed in a predetermined area of the keypad After output, any one of the keys may be selected and combined to recognize the password.

According to an embodiment of the present invention, selecting a key group in the keypad or selecting any one of the keys randomly output in a predetermined area may be performed through motion recognition of the input device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a flowchart illustrating a method of inputting a key in an input device according to an embodiment of the present invention. FIG. 3 and FIG. 4 are views illustrating a keypad according to an embodiment of the present invention, FIG. 8 is a diagram illustrating a screen in which keys assigned to a selected key group are randomly output according to an exemplary embodiment of the present invention.

In step 210, the input device 200 outputs a keypad including a plurality of key groups.

Here, the key group may be set by grouping a plurality of keys arranged in each row in the basic key arrangement into n (natural numbers) or grouping a plurality of keys arranged in at least one column.

The primary key arrangement may be, for example, a "QWERTY" key arrangement or an "ABC" key arrangement.

FIG. 3 is a diagram illustrating a keypad corresponding to a "QWERTY" key arrangement, wherein each row is divided into two key groups. Taking the first row as an example, the first row of the "QWERTY" key layout contains "1234567890". The keypad according to the embodiment of the present invention divides each row of the basic key arrangement into n groups (i.e., two groups), assigns the key "12345" to the first group, "67890" You can assign a key.

In this manner, each row can be divided into n groups, and then a plurality of keys can be assigned to each group.

In an embodiment of the present invention, it is assumed that the keys of each row of the basic key arrangement are divided into two groups, and the keys of each row may be assigned to three or more groups.

FIG. 4 is a diagram illustrating a keypad corresponding to the "ABC" key arrangement, in which keys arranged in each row are divided into a plurality of groups and assigned.

3 and 4 show an example of assigning the keys arranged in each row in the basic key arrangement to a plurality of groups. However, according to another embodiment of the present invention, at least one column in the basic key arrangement is divided into one group Quot ;, and " keys "

According to another embodiment of the present invention, the keys may be grouped into a plurality of groups in a matrix of N (natural numbers) X M (natural numbers) in the basic key arrangement.

The keypad also includes a key selection area for outputting a plurality of keys assigned to the selected group, as shown in Fig.

The key selection area is an area for randomly outputting a plurality of keys assigned to the selected key group when any one of the key groups included in the output keypad is selected. Here, the key selection area may be an a X b array. a and b may each be a natural number.

3 and 4 illustrate that the key selection area is included in the central area of the keypad, but it is to be understood that the key selection area may be included in one area on the keypad, such as the left area, the right area, etc. in addition to the central area of the keypad .

In step 215, the input device 200 selects one of the key groups in the keypad. At this time, the input device 200 recognizes the motion of the input device 200 and can select any one of the key groups from the keypad.

For example, when the user desires to input any one of "1", "2", "3", "4", and "5", the user selects the group "12345" .

In step 220, the input device 200 randomly outputs a plurality of keys assigned to the selected key group to a key selection area on the keypad.

Assuming that the group "12345" is selected, keys corresponding to "1", "2", "3", "4", and "5" are randomly output to the key selection area . As shown in FIG. 5, not only a plurality of keys included in the selected key group are displayed in the key selection area, but at least one blank key (for example, blank) can be displayed together.

Since the plurality of keys and blank keys assigned to the selected key group are randomly arranged in the key selection area, even if the user selects a key through motion recognition of the input device 200, And can not estimate the input (i.e., selected) key.

6 shows an example in which "h", "j", "k", and "l" are randomly output in the key selection area when the "hjkl" key group is selected. Quot; b ", "n ", and" m " keys are randomly output in the key selection region.

In step 225, the input device 200 selects one of the keys randomly output in the key selection area.

At this time, the input device 200 can select any one of the keys output from the key selection area through the motion recognition of the input device 200.

In step 230, the input device 200 recognizes the password by combining the selected keys.

That is, the input device 200 may repeat steps 210 to 225 until all the keys corresponding to the password are input, and then recognize the password by combining the selected keys.

8 is a block diagram schematically illustrating an internal configuration of an input device according to an embodiment of the present invention.

The input device 200 according to an exemplary embodiment of the present invention may be a user terminal, for example, a portable electronic device such as a mobile communication terminal, a PDA, a personal computer, a notebook computer, or the like.

8, an input device 200 according to an exemplary embodiment of the present invention includes an output unit 810, a motion sensing unit 815, an input unit 820, a memory 825, and a control unit 830 .

The output unit 810 may output a keypad including a plurality of key groups to which a plurality of different keys are assigned according to the control of the control unit 830. [ Here, the keypad may include a key selection area for outputting at least one of a plurality of keys assigned to the selected key group and at least one blank key (e.g., blank).

Since this is the same as described above, redundant description will be omitted.

The motion sensing unit 815 is a unit for sensing the motion of the input device 200 according to the movement of the input device 200 from the user. For example, the motion detection unit 815 may include a motion sensor including a gyroscope, an acceleration sensor, and the like.

Since the method of sensing the motion of the input device 200 itself is obvious to those skilled in the art, a detailed description thereof will be omitted.

The input unit 820 selects either one of the key groups in the keypad according to the motion sensed by the touch or click or the motion detection unit 815 or any one of the keys randomly output corresponding to the selected key group in the key selection region As shown in FIG.

The memory 825 may include various applications, algorithms, basic key arrangements, a plurality of key groups, a plurality of keys assigned per key group, and the like, which are necessary for operating the input device 200 for inputting a key according to an embodiment of the present invention. And so on.

The control unit 830 controls the internal components (e.g., the output unit 810, the motion sensing unit 815, the input unit 820, the memory 825) of the input device 200 according to an embodiment of the present invention. Etc.).

In addition, the control unit 830 may generate a keypad including a plurality of key groups and key selection areas to which different keys are assigned in the basic key arrangement, and output the generated keypad through the output unit 810.

The control unit 830 may also control to output a plurality of keys and blank keys assigned to the selected key group at random through the key selection area when any one of the key groups is selected on the keypad.

Meanwhile, the key input method according to the embodiment of the present invention may be implemented in a form of a program command that can be executed through various electronic information processing means, and may be recorded in a storage medium. The storage medium may include program instructions, data files, data structures, and the like, alone or in combination.

Program instructions to be recorded on the storage medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of software. Examples of storage media include magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, magneto-optical media and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as devices for processing information electronically using an interpreter or the like, for example, a high-level language code that can be executed by a computer.

The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

810:
815: Motion detection unit
820:
825: Memory
830:

Claims (10)

A method of inputting a key in an input device,
(a) outputting a keypad including a plurality of key groups, the key groups each including a plurality of different keys;
(b) randomly outputting a plurality of keys assigned to the selected key group to a key selection region when any one of the key groups is selected on the keypad;
(c) selecting any one of the randomly output keys in the key selection region; And
(d) recognizing a password by combining the selected keys.

The method according to claim 1,
The keypad may be configured to set a plurality of keys included in each row in a basic key arrangement as n (natural number) groups, to set a plurality of keys included in at least one column as a group, or to set N And a plurality of keys included in the XM (natural number) matrix are set as a group.

3. The method of claim 2,
Wherein the primary key arrangement is a "QWERTY" key arrangement or an "ABC" key arrangement. The method according to claim 1,
Wherein the key selection area includes aX b key arrangement in an arbitrary area of the keypad, and a and b are natural numbers. The method according to claim 1,
Wherein the key group and the key selection are selected through motion recognition of the input device. The method according to claim 1,
The step (b)
Wherein at least one blank key is further included, and the random key is output in a predetermined area. The method according to claim 1,
Wherein the steps (a) to (c) are repeated until all the keys corresponding to the respective digits of the password are input. A recording medium on which program codes for performing the method according to any one of claims 1 to 6 are recorded. An input device for inputting a key,
An output unit for outputting a keypad including a plurality of key groups, each of the key groups including a plurality of different keys, the keypad including a key selection key for outputting a plurality of keys assigned to the selected key group Area;
An input unit for selecting one of the key groups in the keypad and selecting one of the plurality of keys assigned to the selected key group when the key is randomly output to the key selection region; And
And a control unit for recognizing a password by combining the selected keys. 10. The method of claim 9,
And a motion sensing unit for sensing motion of the input device,
Wherein the input unit receives the key group and the key according to a motion sensed by the motion sensing unit.

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