KR20140001344A - Unlocking method for application of mobile terminal, mobile terminal using the unlocking method and login method for service application of mobile terminal - Google Patents

Abstract

A method for unlocking a mobile terminal according to the present invention comprises the following steps of: (a) displaying a character row and a figure row on a display device of a mobile terminal; (b) sensing, by a touch panel of the display device, input which moves the character row or figure row; (c) determining a matching relationship between characters of the character row and figures of the figure row at a position where the movement of the character row or figure row is finished; (d) comparing the matching relationship between the characters and the figures with matching information predetermined by a user; (e) unlocking the mobile terminal or program running on the mobile terminal if the matching relationship between the characters and the figures corresponds to the matching information. The steps from (b) to (d) are repeatedly performed according to the number of matching digits, and a mobile phone or program is unlocked if matching relationships and matching information for all the matching digits are identical. Furthermore, an order of the character row and figure row can be changed when the steps from (b) to (d) are performed once. [Reference numerals] (a) Step of displaying a character row and a figure row on a display device of a mobile terminal; (AA) Start; (b) Step of sensing, by a touch panel of the display device, input which moves the character row or figure row; (BB) End; (c) Step of determining a matching relationship between the characters of the character rows and the figures of the figure row at a position where the movement of the character row or figure row is finished; (d) Step of comparing the matching relationship between the characters and the figures with matching information predetermined by a user; (e) Step of unlocking the mobile phone or program running on the mobile phone if the matching relationship between the characters and the figures corresponds to the matching information

Description

TECHNICAL FIELD [0001] The present invention relates to a method of unlocking a mobile terminal, a mobile terminal using the unlocking method, and a service starting method of an application operating in the mobile terminal. TERMINAL}

The present invention relates to an unlocking method for an application operating in a mobile terminal having a touch panel, a mobile terminal using the unlocking method, and an application starting method using the unlocking method.

As mobile devices such as mobile phones are recognized as necessities of life, a variety of personal information is stored and used in mobile devices. In particular, as personal information, such as a credit card payment function and a securities transaction function, which are more important to security, is stored in a mobile device in addition to a telephone number, the use of a locking function of a mobile device limits the access of others to personal information Is becoming more important.

In recent years, the use of a terminal having a touch screen has been increasing, and a pattern lock function has been provided instead of a password when releasing a lock mode (touch screen hold state) of the terminal. However, since the conventional pattern locking function connects four or more nodes out of the nine nodes displayed in the pattern input window, the pattern lock is established by using the formed pattern.

Therefore, efforts are continuing to provide an unlock function with a higher security level. For example, Korean Patent Laid-Open No. 10-2012-0020662 discloses a method of unlocking using a three-dimensional pattern.

Pattern locks are vulnerable to smudge attacks where fingerprints can remain to guess the shape of the pattern. In addition, the conventional numeric input method is easy to be analogous because many numbers are set with a certain number of passwords, and it is vulnerable to a random attack because the range of one digit is ten. Furthermore, both of the above methods are vulnerable to peeping attacks because of their simple configuration.

The present invention provides a locking method with a large number of lock cases by using a method of matching a character string and a figure column, and a method of releasing the locking method.

The present invention provides a method for unlocking a character and a graphic object by sliding or rotating a character string and a graphic character string on a liquid crystal display.

The present invention provides a method for logging into a service provided in a mobile terminal by utilizing an unlocking method.

The solution of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

A method of unlocking a mobile terminal according to the present invention includes the steps of: (a) displaying a character string and a graphic string on a display device of a mobile terminal; (b) inputting a character string or a graphic string (C) determining a matching relationship between a character of a character string and a graphic object of a graphic object at a position at which the movement of the character object or graphic object is terminated, (d) determining a matching relationship between the character and the graphic object, And (e) unlocking the program operated on the mobile terminal or the mobile terminal when the matching relationship between the character and the graphic is the same as the matching information.

(b), (c), and (d) may be repeated according to a predetermined number of matching digits. In step (e), matching information and matching information Only the mobile terminal or the mobile terminal releases the lock of the program.

At least one of the character string or graphic character string displayed in step (a) is in a linear form, and the input in step (b) may be an input for moving a character or graphic form string in a longitudinal direction of a straight line.

Also, at least one of the character string or graphic character string displayed in step (a) may be polygonal or circular, and the input of step (b) may be an input for rotating the character or graphic character string.

A mobile terminal according to the present invention includes a display device for displaying a first cipher string and a second cipher key, a touch panel for receiving an unlock input for performing unlocking, At the time when the movement is completed, the matching relationship between the character or graphic form of the first cipher string and the character or graphic form of the second cipher string is compared with the matching information set by the user in advance, and the lock status And a control unit for releasing or holding the signal. The first cipher string and the second cipher string are each one of a character string or a graphic form column.

At least one of the first encryption string or the second encryption string displayed on the display device is in a linear form and the unlock input may be an input for moving the first encryption string or the second encryption string in the longitudinal direction of the straight line.

Also, at least one of the first encryption string or the second encryption string displayed on the display device may be a polygonal shape or a circular shape, and the unlocking input may be an input for rotationally moving the first encryption string or the second encryption string.

The matching information sets and stores a first cryptographic value, which is one of the characters or graphics of the first cryptographic sequence, and a second cryptographic value, which is a character or a graphic, matched to the first cryptographic value.

The control unit compares the character or figure at the position closest to the position where the first encryption value is displayed in the display device and the second encryption value at the time when the movement is completed in the order of the matching digit.

According to another embodiment of the present invention, there is provided a method of starting a service of an application operating in a mobile terminal, comprising the steps of: (a) receiving login data stored in a service server through a network; (b) (C) sensing an input for moving a character string or a graphic string by the touch panel of the display device; (d) detecting a character string and a graphic string of the character string at a position where the movement of the character string or the graphic string is terminated; (E) comparing the matching relationship between the character and the graphic object to match the matching information included in the login data, and (f) if the matching relationship between the character and the graphic object is the same as the matching information, And starting a service provided through the service server.

(c), (d), and (e) may be repeated according to a predetermined number of matching digits. In step (f), matching information and matching information Only the service will be started.

at least one of the character string or the graphic form column displayed in step (b) is in a linear form, and the input in step (c) may be a character or graphic form moving in the longitudinal direction of the straight line.

Also, at least one of the character string or graphic character string displayed in step (b) may be a polygonal or circular shape, and the input of step (c) may be an input for rotating or moving the character or graphic character string.

In the matching information, the character string and the figure column included in the login data are displayed by the display device of the mobile terminal, and the user uses the touch panel of the display device to match the characters constituting the character string and the figures constituting the figure column, do.

The method of unlocking a mobile terminal according to the present invention is highly secure by matching a plurality of characters and a plurality of graphics.

The method of unlocking a mobile terminal according to the present invention is resistant to a smudge attack because it leaves a general line trace or a circle trace without leaving a trace according to a specific pattern on the touch panel.

The service start method of the application operating in the mobile terminal according to the present invention has the same effect as the above-described method of unlocking the mobile terminal.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a schematic flowchart of an example of a method of unlocking a mobile terminal.
FIG. 2 (a) is an example of a case where a character string and a graphic form column displayed in the display device of the mobile terminal are in a linear form, and FIG. 2 (b) Fig.
3 (a) is an example of a case where the character string and the graphic form column displayed in the display device of the mobile terminal are in the form of a circle, and FIG. 3 (b) Fig.
4 is an exemplary diagram illustrating a screen in which a user sets matching information in a mobile terminal.
5 is an exemplary view of some of the steps in which a user unlocks using a prototype string and a geometry column.
6 is a schematic block diagram of a main configuration of a terminal in which an unlocking method is used.
Figure 7 is a schematic flow diagram of an example of a method of service initiation (login) of an application operating on a mobile terminal by applying an unlocking method.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, A, B, etc., may be used to describe various components, but the components are not limited by the terms, but may be used to distinguish one component from another . For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

As used herein, the singular " include "should be understood to include a plurality of representations unless the context clearly dictates otherwise, and the terms" comprises & , Parts or combinations thereof, and does not preclude the presence or addition of one or more other features, integers, steps, components, components, or combinations thereof.

Before describing the drawings in detail, it is to be clarified that the division of constituent parts in this specification is merely a division by main functions of each constituent part. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. In addition, each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner. Therefore, the existence of each of the components described in this specification will be interpreted as a function, and for this reason, the configuration of the components according to the terminal 100 in which the unlocking method of the present invention is used, It should be clarified that it can be different from Fig. 6 within the limits that can be done.

A method of unlocking a mobile terminal according to the present invention is used in a mobile terminal using a touch panel. The present invention is a method of using the mobile terminal itself or unlocking an operation of an application operating in the mobile terminal. As described above, since the conventional pattern locking method leaves a fingerprint on the touch panel, there is a risk that a person can find the trace of the pattern and release the lock. In the present invention, the input for unlocking leaves a trace of a straight line or a curve rather than a specific pattern.

Hereinafter, a method of unlocking a mobile terminal will be described in detail with reference to the drawings. 1 is a schematic flowchart of an example of a method of unlocking a mobile terminal.

A method of unlocking a mobile terminal according to the present invention includes the steps of: (a) displaying a character string and a graphic string on a display device of a mobile terminal; (b) inputting a character string or a graphic string (C) determining a matching relationship between a character of a character string and a graphic object of a graphic object at a position at which the movement of the character object or graphic object is terminated, (d) determining a matching relationship between the character and the graphic object, And (e) unlocking the program operated on the mobile terminal or the mobile terminal when the matching relationship between the character and the graphic is the same as the matching information.

The present invention uses a method of matching a specific figure with a character of a character string. Characters include numbers, Hangul, English, or symbols. Figures include figures, figures, symbols, etc., rather than letters.

Furthermore, as another embodiment, there may be used a method of displaying two character strings, displaying two graphic columns, and matching characters and characters, or matching graphics and graphics. For example, if two strings are displayed, the alphabet symbol A of the first string and the number symbol 3 of the second string can be matched.

However, for convenience of explanation, the following case will be described as a representative example in which a character string and a graphic form column are displayed.

First, some typical examples of how a string or a graphic string is displayed are described. The shape of a string or a shape column can be of various shapes. The present invention is intended not to leave a trace of a specific pattern on the touch panel of the mobile terminal. To do this, use the following string or shape type.

FIG. 2 (a) is an example of a case where a character string and a graphic form column displayed in the display device of the mobile terminal are in a linear form, and FIG. 2 (b) Fig.

(달)'이 문자열의 2개의 수직 방향 직선(이하 '매칭 영역'이라 함)에 위치하고 있다. 물론 상단에 도형열이 표시되고, 하단에 문자열이 표시되는 경우도 가능하다.FIG. 2 (a) shows a character string and a graphic form in a straight line displayed on the mobile terminal display device. A numeric string, one of the strings, is displayed at the top, and a graphic string is displayed at the bottom. The number '5' in the numeric column and the figure '

(Month) 'is located in two vertical straight lines (hereinafter referred to as' matching area') of the string. Of course, it is possible to display a figure column at the top and a string at the bottom.

(꽃)'을 매칭 영역 안에 위치시킨 화면이다. 사전에 사용자가 설정한 암호가 숫자 '5'와 도형 '

(꽃)'이라면, 잠금이 해제될 것이다.FIG. 2 (a) is an initial screen displayed on the display device. FIG. 2 (b) shows a case where the user moves (slides)

(Flower) 'in the matching area. If the password set by the user in advance is' 5 'and figure'

(Flower) ', the lock will be released.

(달)'을 매칭 영역에 위치시킨 경우이다. 물론 상단 문자열 및 하단 도형열을 각각 좌측 또는 우측 방향으로 이동시켜 매칭영역에 위치시킬 수도 있다.Fig. 2 (c) shows a case where the upper character string is moved to the left side to match the figure. In FIG. 2 (c), the number '9' and the figure '

(Month) 'in the matching area. Of course, the upper character string and the lower graphic character string may be respectively moved to the left or right direction and positioned in the matching area.

As shown in FIG. 2, even if a character string or a figure column is displayed as a straight line, the trace left by the user on the touch panel is a straight line, and it is impossible to know what kind of cipher was used by the other person.

Although the character string and the graphic form column shown in Fig. 2 are displayed as a straight line, the actual user experiences the method of rotating the character string or the graphic form column. In FIG. 2 (a), when the user moves the portion indicated by the numerical digits 1 to 9 to the left, the numeric string changes from the number 5 to 13 as shown in FIG. 2 (c). The user is given the impression that the sequence of numbers is rotating continuously. Of course, a method of simply moving a fixed character string or a figure column in a linear direction can be used.

Other embodiments of displaying strings or geometry columns are possible. 3 (a) is an example of a case where the character string and the graphic form column displayed in the display device of the mobile terminal are in the form of a circle, and FIG. 3 (b) Fig. Such a shape may be referred to as a double ring shape.

3 (a) shows a case where a string (numerical string) and a graphic string are in the form of a circle. The outer column displays numbers from 1 to 16, and the inner column displays 16 figures. Fig. 3 (b) shows a method of rotating a character string or a figure string in the form of a rotating plate. FIG. 3 (b) shows an example in which the inner figure string is rotated while the outer number string is fixed. Of course, you can either rotate the outer row of numbers, or move both the outer row of numbers and the inner row of figures.

In FIG. 2 or FIG. 3, a case where a character string and a graphic pattern column are located closely is shown. The string and geometry columns may be spaced apart at a uniform distance as long as the user can confirm the matching.

Although not shown in the drawings, a string or a graphic string in a linear form and a circular form may be used in combination. For example, a character string is displayed in a linear form at the top, and a graphic form column is displayed in a circular form at the bottom.

Furthermore, a polygonal shape can be used in addition to a circular shape or a shape column. And the character or figure displayed on the polygon is matched by rotating the polygon.

A user must set a password for unlocking in advance, but a plurality of digits such as a PIN (Personal Identification Number) method can be used. To increase security, it is preferable to use a plurality of digits. In the present invention, matching letters, characters, characters, figures, figures, and figures corresponds to password setting. Hereinafter, the encryption for unlocking is referred to as matching information in the present invention.

4 is an exemplary diagram illustrating a screen in which a user sets matching information in a mobile terminal.

In FIG. 4, a numeric group consisting of 16 numerals is displayed at the upper part of the display, and a 4-digit number is displayed immediately below the numeric group. In the example of FIG. 4, matching information having four digits is used. The sequence of numbers uses the matching information in order 11, 11, 4 and 4. It is desirable to be able to set up duplicate numbers or figures.

(알약), 두 번째(2) 자리는

(꽃), 세 번째(3) 자리는

(테이프), 네 번째(4) 자리는

(연필)이 배치되어 있다.Below the numbers, there are 16 groups of figures, and just below the group of figures are the four figures you selected. The first (1) digit

(Pill), the second (2) position

(Flower), the third (3) spot

(Tape), the fourth place (4)

(Pencil) are arranged.

As a result, the user sets the matching information matching the figure pill, flower, tape, and pencil in the figure column to the numbers 11, 11, 4, and 4 of the numeric column.

Accordingly, steps (b), (c), and (d) may be repeated according to a predetermined number of matching digits. In this case, in step (e) The mobile terminal or the mobile terminal releases the lock of the program. The matching position or the number of matched digits is a term for describing the case where the matching information has a plurality of digits, the number of matched digits means the whole digits, and the matching digits means each digits constituting the matching information. Accordingly, if four-digit matching information is used, steps (b) to (d) are repeated four times according to the number of matching digits 4, and the lock is released only when the matching relation matches the matching information according to each matching spot .

it is to be understood that the steps (a) to (d) are performed repeatedly, since the steps (b) to (d) are repeatedly performed.

The process of releasing the lock after the matching information is set as described above will be briefly described. First, we need to determine the matching relationship of the figure that matches the character.

In the step (c), the matching relation may be determined such that the figure at the closest distance to the character matches each of the characters constituting the character string. In general, users will find it convenient to use a method that matches shapes that are closest to a character, because it is the most intuitive.

The determination of proximity distance may be made based on the reference point of the character and the reference point of the graphic, while the reference point may be one of the center or the outline. The distances between characters and graphics displayed on the mobile terminal can be measured in various ways. Generally, a method of displaying a character in a display device of a mobile terminal sets the same area occupied by a character. For example, if it is a rectangular shape, the center point of the corresponding square can be selected as the reference point of the distance measurement. Alternatively, one of the pixels constituting the outline of the character may be selected as the reference point, or one of the virtual points for designating the rectangle which is the region where the character is divided may be selected as the reference point.

If it is determined that there are two or more figures in proximity to a specific reference point based on a specific character, it may be desirable to determine the figure at the closest distance by changing the reference point, rather than determining the failure as failure. That is, when there are a plurality of graphics that are closest to the character in the determination of whether the distance is close to the character, one or more of the reference point of the character or the reference point of the graphic is changed to judge the distance again.

Alternatively, if two or more figures in a proximity distance from a specific reference point are determined based on a specific character, the user may be informed of the contents and may perform a task of matching characters and figures again. This scheme may be more preferable when the number of digits of matching information is large.

It is assumed that the matching relationship is determined using one or more of the above-described methods, and one of the ways in which the user releases the lock will be described as an example. 5 is an exemplary view of some of the steps in which a user unlocks using a prototype string and a geometry column.

Assume that the matching information as shown in FIG. 4 is set. 5 (a) is an initial screen for unlocking. It is assumed that the inner figure circle is rotated. When the user places the figure 'pill' in the outer circled number '11', it is indicated that the password for the corresponding place is selected in the first quadrangle shown in the upper part of FIG. 5. 5 (b) is a screen for inputting the second digit of the matching information. That is, the figure 'flower' is placed on the number '11'. If the input value matches the matching information, the lock is released.

The user rotates the inner figure circle by one rotation movement, and the inner figure circle may automatically move to the initial position as shown in FIG. 5 (a) when the rotation is completed. In this case, the user is unlocked by a motion like a telephone dialing operation.

Furthermore, when the user rotates the inner figure circle by one rotation, and the arrangement of the figures forming the inner figure column is changed randomly at the end of the rotation. This method corresponds to a more secure method. Even in the case of the straight line shape shown in FIG. 2, the order of the figures may be changed randomly by releasing the touch panel after performing one-digit matching.

6 is a schematic block diagram of a main configuration of the mobile terminal 100 in which the unlocking method is used. The description of the mobile terminal 100 in which the unlocking method is performed will be briefly described.

The mobile terminal 100 described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player) have. However, it will be easily understood by those skilled in the art that the configuration according to the embodiment described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, except when applicable only to the mobile terminal 100 .

The mobile terminal 100 may include an input / output unit 110, a wireless communication unit 130, a memory 140, a control unit 120, and a power supply unit 150. The components shown in Fig. 6 are not essential, so that the mobile terminal 100 having more or fewer components may be implemented.

The input / output unit 110 includes an interface for receiving user input and a display of the mobile communication terminal. Since the present invention is basically applied to the mobile terminal 100 using a touch panel (touch screen), the input unit and the output unit are not distinguished from each other and are referred to as one input / output unit 110. [

The input / output unit 110 includes a display unit 111 for outputting a specific screen to a user and a touch panel 112 for receiving a user input. The display unit 111 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) display, and a 3D display.

There may be two or more display units 111 according to the embodiment of the mobile terminal 100. [ For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces. Furthermore, the display unit 111 and the touch panel 112 may be disposed in different areas.

The control unit 120 typically controls the overall operation of the mobile terminal 100. For example, voice communication, data communication, video communication, and the like. Meanwhile, in the present invention, the control unit 120 can recognize the handwriting input and the specific direction input performed on the touch panel 112.

The memory 140 may store a program for the operation of the controller 120 and may temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). Further, the memory 140 may temporarily store various patterns to be output upon touch input on the touch screen, or may store matching information set by the user in advance.

The memory 140 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 140 on the Internet.

The wireless communication unit 130 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located.

Hereinafter, a mobile terminal 100 according to the present invention will be described with a configuration that is highly relevant to the present invention.

The mobile terminal 100 according to the present invention includes a display device for displaying a first cipher string and a second cipher key, a touch panel 112 for receiving an unlock input for performing unlocking, and a touch panel 112 ) At the end of the movement, the matching relationship between the character or graphic form of the first cipher string and the character or graphic form of the second cipher text and the matching information set by the user in advance And a control unit 120 for releasing or holding the locked state according to the comparison result.

The first encryption string and the second encryption string are displayed on the display device. However, the first and second encryption strings are named to emphasize the functional configuration for performing the real display function instead of the logical configuration. ).

In the mobile terminal 100, a first cipher string and a second cipher string are named, but this corresponds to the above-mentioned string or figure string. However, the first cipher string and the second cipher string are described more broadly in the sense that one of the string or the figure string can be used, respectively.

At least one of the first encryption string or the second encryption string displayed on the display device is in a linear form and the unlock input may be to move the first encryption string or the second encryption string in the longitudinal direction of the straight line.

Also, at least one of the first encryption string or the second encryption string displayed on the display device may be a polygonal shape or a circular shape, and the unlocking input may be an input for rotationally moving the first encryption string or the second encryption string.

The user sets the first cryptographic value, which is one of the characters or graphics of the first cryptographic sequence, and the second cryptographic value, which is a character or a figure, matched with the first cryptographic value as matching information in advance in each matching place.

The control unit 120 compares the character or figure at the position closest to the position where the first encryption value is displayed and the second encryption value in the display device at the time when the movement is completed in the order of the matching digit.

The control unit 120 compares the match relationship with the matching information in order of matching, and releases the locked state only when all matching points match.

Although the present invention is an unlocking method for starting the operation of the mobile terminal itself or the operation of the application, the present invention can be applied to various areas. As another embodiment, a service login method utilizing the unlocking method of the present invention will be described. For example, when a specific game app installed in the mobile terminal is executed, the locking method proposed in the present invention is performed instead of inputting the user's ID and password. Since the number of figures and figures forming the string constituting the string exceeds a predetermined number, it is possible to use the method of the present invention not only for the password but also for the user's ID.

Figure 7 is a schematic flow diagram of an example of a method of service initiation (login) of an application operating on a mobile terminal by applying an unlocking method.

A method of starting a service of an application operating in a mobile terminal according to the present invention comprises the steps of (1) receiving login data stored in a service server through a network, (2) (3) sensing an input for moving a character string or a graphic string by the touch panel of the display device, (4) displaying the character string of the character string and the shape of the graphic string (5) comparing whether the matching relation between the character and the graphic is the same as the matching information included in the login data, and (6) if the matching relation between the character and the graphic is the same as the matching information, And starting a service provided through the application and the service server.

A service server is a server that provides a specific service such as a game, and exchanges data with a mobile terminal through a wired or wireless network.

The steps (3), (4), and (5) may be repeated according to a predetermined number of matching digits. In step (6), matching information and matching information Only the service will be started.

The matching information is displayed by the display device of the mobile terminal and a character string included in the login data is displayed by the user. The user uses the touch panel of the display device to set and match the characters constituting the character string and the graphic elements constituting the graphic character string.

The method of starting the service of the application operating in the mobile terminal according to the present invention and the above-described method of unlocking the mobile terminal have a similar configuration. For example, the form of a character string or a figure column, a distance calculation of a character and a figure, matching information set in advance by the user, and the like have the same configuration.

However, in the present invention, a method of starting an application service is assumed to be performed in a service provided at a remote service server through a program (app) installed in the mobile terminal. Therefore, the matching information is preferably included in the login data stored in the remote server. The configuration in which the login data including the matching information is stored is a service server at a remote location and the login data in the service server is transferred to the mobile terminal through the network.

The method proposed by the present invention is safe for a smudge attack because it leaves only general traces of a straight line or curved shape on the touch panel of the mobile terminal. Or, as shown in FIG. 4, if 16 number groups and 16 figure groups are used, and if 4-digit matching information is used, 16 ⁸ = 4,294,967,296 numbers are obtained.

Also, when the attacker watches the authentication process of the user, the user does not have to directly touch and rotate the image, but places his hand on the place where he can rotate and rotates the rotating plate. I can not tell if it is an image.

If an attacker randomly specifies a point and memorizes the order of the images coming there, the images on the turntable come out randomly, so that the positional relationship between the memorized image and the actual user-defined image is changed and there is no use to attack. Therefore, the proposed scheme is also safe for peek-at-the-time attacks.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. It will be understood that variations and specific embodiments which may occur to those skilled in the art are included within the scope of the present invention.

100: mobile terminal 110: input /
111: Display unit 112: Touch panel
120: control unit 130: wireless communication unit
140: memory 150: power supply

Claims (22)

A method for unlocking a mobile terminal using a touch panel,
(a) displaying a character string and a graphic string in a display device of the mobile terminal;
(b) sensing an input by which the touch panel of the display device moves the string or graphic pattern;
(c) determining a matching relationship between a character of the character string and a graphic form of the graphic object train at a position where the movement of the character or graphic object train ends;
(d) comparing the matching relation between the character and the figure and the matching information set by the user in advance; And
(e) unlocking the mobile terminal or a program operated in the mobile terminal when the matching relationship between the character and the figure is the same as the matching information. The method of claim 1,
The steps (b), (c), and (d) may be repeated according to a predetermined number of digits,
And (e) unlocking a program running on the mobile terminal or the mobile terminal only when the matching relationship and the matching information are identical each other in step (d). 3. The method of claim 2,
Wherein when the number of matched digits is plural, unlocking of the mobile terminal which unlocks the program in which the sequence of the character string or figure column is randomly changed after performing the steps (b), (c) Way. The method of claim 1,
Wherein at least one of the character string or graphic character string displayed in step (a) is in a linear shape, and the input in step (b) moves the character or graphic character string in a length direction of the straight line. The method of claim 1,
Wherein at least one of the character string or graphic character string displayed in step (a) is polygonal or circular, and the input of step (b) rotates the character or graphic character string. The method of claim 1,
The matching relationship in step (c)
And determining that a figure that is closest to the character is matched with respect to each character of the character string. The method according to claim 6,
The determination of whether the distance is close or not is determined based on the reference point of the character and the reference point of the figure, wherein the reference point is one of a point of the center or the outline of the unlocking method of the mobile terminal. The method according to claim 6,
And determining a distance again by changing at least one of a reference point of the character or a reference point of the figure if the distance between the character and the character is the closest to the character. The method of claim 1,
Wherein the matching information is previously set by a user by matching a character constituting the character string and a figure constituting the figure column. 3. The method of claim 2,
Wherein when the number of matched digits is a plurality, the matching information is set in advance by matching a character constituting the character string and a graphic form constituting the graphic string in a matching place by a user in advance. (a) receiving a login data stored in a service server through a network;
(b) displaying a character string and a graphic string included in the login data by a display device of the mobile terminal;
(c) sensing an input by which the touch panel of the display device moves the character string or the graphic string;
(d) determining a matching relationship between a character of the character string and a graphic form of the graphic object train at a position where the movement of the character or graphic object train ends;
(e) comparing the matching relation between the character and the graphic form to match the matching information included in the login data; And
(f) starting a service provided through the service server and an application installed in the mobile terminal when the matching relationship between the character and the figure is the same as the matching information. 12. The method of claim 11,
The steps (c), (d), and (e) are repeated according to a predetermined number of matching digits,
Wherein the step (f) starts the service only if the matching relationship and the matching information are the same each time in step (e). The method of claim 12,
Wherein when the number of matched digits is plural, unlocking of the mobile terminal which unlocks the program in which the sequence of the character string or figure column is randomly changed after performing the steps (b), (c) Way. 12. The method of claim 11,
Wherein at least one of the character string or graphic character string displayed in step (b) is in a linear form, and the input in step (c) is a service of an application operating in the mobile terminal for moving the character or graphic character string in the length direction of the straight line How to get started. 12. The method of claim 11,
Wherein at least one of the character string or graphic character string displayed in the step (b) is polygonal or circular, and the input of step (c) is a method of starting the service of the application operating in the mobile terminal . 12. The method of claim 11,
The matching relationship in step (c)
A service starting method of an application operating in a mobile terminal for determining that a figure closest to the character is matched with respect to each character constituting the character string. 12. The method of claim 11,
The matching information includes
The display device of the mobile terminal displays the character string and the figure type column included in the login data, and the user uses the touch panel of the display device to move the character constituting the character string and the figure constituting the figure type column A method of starting a service for an application running on a terminal. A display device for displaying the first cipher string and the second cipher string;
A touch panel for receiving an unlock input for performing unlocking; And
Receives an input for moving one or more of the string or figure string on the touch panel in the locked state, and the matching relationship between the character or figure of the first cipher string and the character or figure of the second cipher string when the movement is completed And a controller for comparing the previously set matching information and releasing or maintaining the locked state according to the comparison result, wherein the first encryption string and the second encryption string are each one of a string or a figure string. Mobile terminal. 19. The method of claim 18,
Wherein at least one of the first encryption string or the second encryption string displayed on the display device is a linear shape and the unlock input is an input for moving the first encryption string or the second encryption string in the longitudinal direction of the straight line The mobile terminal comprising: 19. The method of claim 18,
Wherein at least one of the first encryption string or the second encryption string displayed on the display device is a polygonal shape or a circular shape and the unlock input is an input for rotating the first encryption string or the second encryption string. . 19. The method of claim 18,
Wherein the matching information stores a first cipher value, which is one of characters or graphics of the first cipher string, and a second cipher value, which is a character or a figure matched with the first cipher value, at every matching position. 22. The method of claim 21,
Wherein the control unit compares the character or figure at a position closest to the position where the first cipher value is displayed at the display device at the end of the movement in the order of the matching digit to compare whether the second cipher value is the same or not terminal.

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