KR101228090B1 - System and method for inputing password - Google Patents

Abstract

PURPOSE: A password input system and a method thereof are provided to improve security, convenience, and an input speed by inputting a temporary password generated through a random keypad to random keypads without exposing a password. CONSTITUTION: A keypad output unit(110) randomly arranges and outputs random keypads according to a layout set in a keypad interface. A password storage unit(120) stores a password. When the random keypad of a user is inputted, a decoding unit(130) decodes a character key of the random keypad corresponding to a position of the inputted random keypad as an input password based on a character key arrangement state of one random keypad. A comparing unit(140) compares the input password with the preseted password. [Reference numerals] (110) Keypad output unit; (120) Password storage unit; (130) Decoding unit; (140) Comparing unit; (150) Display unit; (160) Random key changing unit

Description

Password entry system and method {SYSTEM AND METHOD FOR INPUTING PASSWORD}

The present invention relates to a password input system and method.

With the recent increase in the use of unattended ATMs and the active activation of Internet banking and mobile banking using smartphones, tablet computers, PCs, etc., individuals are required to enter passwords for personal identification in public places. It was. Nevertheless, the conventional password input method using a keyboard records a keylogging attack in which a user records button information and finds out a password, or shoulder surfing that finds and looks at a user's password behind a user's shoulder. Shoulder Surfing) has the disadvantage of being very vulnerable to attack. In particular, if a user repeatedly enters the same password, it is highly likely to be exposed to such risks. As described above, many techniques for reinforcing safety in case of repeatedly inputting a password have been proposed. However, even when the input speed is high, the input speed is very slow because the key input time is about 10 seconds.

Therefore, while using the existing password input authentication method using a personal identification number (PIN), a password input system having a fast input speed that not only enhances stability but also requires a key input time of less than 5 seconds is required.

In this regard, Korean Patent Laid-Open Publication No. 2007-0044916 (name of the invention: a method for inputting a password for a mobile communication terminal) includes inputting a password, selecting and storing an input location keypad number, a location corresponding to the input location keypad number. A method of inputting a password includes moving a direction key to map a password number among randomly arranged numbers, and inputting the same using a selected special key.

The present invention is to solve the above-mentioned problems of the prior art, some embodiments of the present invention can enhance the safety while using the existing password input authentication method using the existing PIN, and can also improve the key input speed than the existing It is an object of the present invention to provide a password input system and method.

As a technical means for achieving the above technical problem, the password input system according to the first aspect of the present invention is arranged to output a plurality of random keypad in the keypad interface according to a preset layout, each random keypad is randomly arranged A plurality of character keys, each character key included in each random keypad is a keypad output unit arranged to correspond one-to-one with the plurality of random keypads according to the layout, a password storage unit in which a preset password is stored, a user's random keypad A decryption unit for decrypting a character key corresponding to the input random keypad position into a user input password based on a state of the arrangement of the character keys of the random keypad under preset conditions, the preset password and the input password It includes a comparison unit for comparing the.

In addition, the password input method using a password input system according to a second aspect of the present invention comprises the steps of arranging and outputting a plurality of random keypad in the keypad interface according to a predetermined layout, each letter key included in each random keypad to the layout Disposing one-to-one correspondence with the plurality of random keypads according to the user; when a random keypad input of the user occurs, based on a state of arrangement of the character keys of the random keypad under a preset condition, a character key corresponding to the position of the input random keypad And decrypting the input password of the user, comparing the preset password with the input password, wherein the random keypad includes a plurality of randomly arranged character keys.

According to one embodiment of the above-described problem solving means of the present invention, by entering the temporary password generated through the random keypad on the plurality of random keypads without exposing the password set by the user to the outside, security and convenience is improved In addition, the input speed can be improved.

1 is a diagram illustrating a password input system.
2 illustrates a key input method on a keypad output unit of a password input system.
3 illustrates a plurality of random keypads each having a different color.
4 is a diagram illustrating a key input method in a password input system.
5 is a diagram illustrating a display unit of a password input system.
6 is a diagram illustrating a password input method using a password input system.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

1 is a diagram illustrating a password input system, FIG. 2 is a diagram illustrating a key input method on a keypad output unit of a password input system, and FIG. 3 is a diagram illustrating a plurality of random keypads having different colors.

The password input system 100 according to the present invention includes a keypad output unit 110, a password storage unit 120, a decryption unit 130, a comparison unit 140, a display unit 150, and a random key changing unit 160. Include.

The keypad output unit 110 arranges and outputs a plurality of random keypads according to a preset layout in the keypad interface. In this case, the random keypad refers to a random arrangement of character keys without a certain rule.

Meanwhile, the preset layout may be arranged in the same manner as the 3 * 4 numeric key button used in the mobile phone or the ATM. However, in the password input system according to the present invention, the layout of the plurality of random keypads and the plurality of character keys included in the plurality of random keypads may be arranged in a different arrangement as well as an arrangement of 3 * 4.

Each random keypad on the keypad interface includes a plurality of randomly placed character keys. In addition, each character key included in each random keypad is arranged to correspond one-to-one with a plurality of random keypads according to a layout. Referring to FIG. 3, a plurality of random keypads are arranged in an array of 3 * 4 on a keypad interface, and a plurality of character keys are included on each random keypad. Accordingly, the user selects one random keypad among the plurality of random keypads, inputs a plurality of random keypads as key buttons by designating a character key displayed on the selected random keypad as a password.

In addition, referring to FIG. 2, a method of inputting a plurality of random keypads as a key button is as follows. A plurality of random keypads are output on the keypad interface, and each of the plurality of random keypads is one key button. Therefore, when the user inputs the character key 210 corresponding to the number '9' printed on the random keypad, when the user inputs the ninth random keypad 220 of the plurality of random keypads output on the keypad interface as a key button, do.

Next, a random keypad having different colors on the keypad output unit will be described with reference to FIG. 3.

The keypad output unit 110 outputs a plurality of random keypads in different colors, respectively, and designates a random keypad having a color preset by a user among the plurality of random keypads as a preset condition. In this case, the preset condition refers to a condition for selecting one random keypad among the plurality of random keypads. For example, in FIG. 3, random colors 1 to 10 are colors of different colors, respectively, and colors are randomly selected. If the user designates the random color 1 as a preset condition among the ten random keypads, the user recognizes the character key displayed on the random keypad 310 displayed in the random color 1 as a password.

In addition, the keypad output unit 110 outputs a plurality of random keypads in different colors, specifies a randomly selected color among the plurality of random keypads as a preset condition, and outputs the selected color as a voice. A user recognizes a character key displayed on a random keypad of a color output by voice as a password and inputs a password. For example, when a user activates a plurality of random keypads displayed in different colors to input a password, the keypad output unit 110 outputs a random color 1, which is a randomly selected color, as a voice. The user recognizes the character key displayed on the random keypad 310 corresponding to the random color 1 output as a voice as a password.

On the other hand, the colors displayed on the plurality of random keypads are displayed at random. In other words, since there is no specific rule for selecting a color, a specific color cannot be continuously assigned to the same position, thereby preventing a password from being exposed to the outside.

Referring back to FIG. 1, the password storage unit 120 stores a password preset by a user. The user does not input the password stored in the password storage unit 120 on the selected random keypad but inputs the plurality of random keypads output on the keypad output unit 110 as a key button.

When the key input occurs on the keypad output unit 110, the decryption unit 130 inputs a character key corresponding to the input position of the random keypad based on a character key arrangement state of a random keypad of a preset color. To decipher.

Referring to Figure 4 describes the process of decrypting the input password as follows. First, the preset password is called '1234'. The random keypad including the preset password is selected according to a preset condition among the plurality of random keypads. A method of selecting a random keypad according to a preset condition is as described above with reference to FIG. 3. When the random keypad 310 corresponding to the random color 1 of FIG. 3 is selected, the position of the character key on the selected random keypad 310 of the preset password '1234' is checked.

Next, the positions on the plurality of random keypads corresponding to the positions of the character keys on the selected random keypad 310 may be checked, and the password may be input using the key buttons.

In the case of inputting '1' in FIG. 4, the third random keypad 511 of the first row corresponding to the position of '1' of the selected random keypad 310 among the plurality of random keypads is input as a key button. Next, when inputting '2', the second random keypad 513 of the fourth row corresponding to the position of '2' of the random keypad 310 is input as a key button. Next, in case of inputting '3', the second random keypad 515 of the second row corresponding to the position of '3' of the random keypad 310 is input as a key button. The third random keypad 517 of the third row corresponding to the position of '4' of the random keypad 310 is input as a key button. After the input, the decryption unit 130 decrypts one-to-one correspondence according to the layout of the character keys on the input random keypad and the selected random keypad, and as a result, decrypts '1234' as the input password.

Referring to FIG. 1, the comparison unit 140 compares a preset password with an input password decrypted by the decryption unit 130 to check whether the password matches. When the decryption unit 130 decrypts '1234' as the input password, it is checked whether the password matches by checking whether the password is the same as the preset password '1234'.

5 is a diagram illustrating a display unit of a password input system.

When the user's key input occurs, the display unit 150 converts the number of digits of the key input by the user into special characters for display. For example, when a user inputs three keys using a plurality of random keypads as key buttons on the keypad output unit 110, three '*' shapes are output to the display unit 150, so that the user inputs three keys. You can check the number of keys.

On the other hand, the plurality of random keypads output to the keypad output unit 110 of the password input system 100 according to the present invention may be arranged in a different arrangement of the number corresponding to each key. For example, referring to FIG. 3, the first letter key of the random keypad 310 corresponding to the random color 1 is the number '5', but the first key of the random keypad corresponding to the color other than the random color 1 is the number '. 5 'can't come. Thus, by arranging numbers differently, security can be improved.

In addition, the password input system 100 according to the present invention may include a random key changing unit 160 for randomly changing keys on the plurality of random keypads. By changing the character key on the random keypad activated on the keypad output unit 110 to a different character key once again through the random key changing unit 160, the password can be prevented from being exposed to the outside, thereby increasing security.

6 is a diagram illustrating a password input method using a password input system according to the present invention.

In the password input method using the password input system according to the present invention, first, a plurality of random keypads are arranged in the keypad interface according to a preset layout and output (S610).

In this case, the plurality of random keypads may be output in different colors, and the random keypad may be selected by designating a random keypad having a color preset by the user as a preset condition among the plurality of random keypads.

Also, by specifying a randomly selected color among a plurality of random keypads as a preset condition and outputting the selected color as a voice, the user can listen to the voice output and select a random keypad.

 Next, each character key included in each random keypad is arranged to correspond one-to-one with the plurality of random keypads according to the layout (S620). For example, referring to FIG. 3, the plurality of random keypads corresponding to the first letter key '5' on the first random keypad becomes the first random keypad 310. In addition, the plurality of random keypads corresponding to the second letter key '7' on the first random keypad becomes a second random keypad having a random color 2. As such, the positional relationship of each character key included in the random keypad and the positional relationship of the plurality of random keypads can be one-to-one to be deciphered with an input password when a user's key input occurs.

Next, when the user's random keypad input occurs (S630), based on the state of the character key arrangement of the random keypad under a predetermined condition, the character key corresponding to the position of the input random keypad is decoded by the user's input password ( S640). For example, referring to FIGS. 3 and 5, the user checks the position of the preset password '1234' on the random keypad 310 under a preset condition. After confirming the positions of the plurality of random keypads corresponding to '1234' and sequentially inputting the random keypads as key buttons, the decryption unit decrypts '1234', which is a character key corresponding to the input random keypad position, as an input password. do.

Next, the preset password and the input password is compared (S650). Since the decrypted password as the input password is' 1234, the password is matched with the previously stored password '1234' to check whether the password match.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: password input system 110: keypad output unit
120: password storage unit 130: decryption unit
140: comparison unit 150: display unit
160: random key change unit

Claims (10)

In the password input system,
A keypad output unit arranged to output a plurality of random keypads according to a preset layout in a keypad interface, wherein each random keypad is randomly arranged;
Password storage unit that stores the preset password,
When a user's random keypad input occurs, the character key of any one of the random keypads corresponding to the input random keypad position is based on a predetermined state of the character key arrangement of one of the plurality of random keypads. Decryption unit to decrypt the user's input password and
Comprising a comparison unit for comparing the predetermined password and the input password,
The random keypad includes the same number of character keys as the number of the random keypad,
And the keypad output unit to place each character key included in each random keypad at a position corresponding one-to-one with the plurality of random keypads according to the layout. The method of claim 1,
The keypad output unit outputs the plurality of random keypads in different colors, respectively, and designates a random keypad having a color preset by a user among the plurality of random keypads as the preset condition.
And a color displayed on the plurality of random keypads is displayed at random. The method of claim 1,
The keypad output unit outputs each of the plurality of random keypads in different colors, specifies a randomly selected color among the plurality of random keypads as the preset condition, and outputs the selected color as a voice.
And a color displayed on the plurality of random keypads is randomly assigned. The method of claim 1,
And a display unit for converting and displaying the number of digits of the key input by the user when special key input occurs. The method of claim 1,
And the plurality of random keypads are arranged differently from each other in the position of the arranged numbers. The method of claim 1,
And a random key changer for randomly changing keys on the plurality of random keypads at random. The method of claim 1,
And the layout is arranged in an array of 3 * 4. In the password input method using a password input system,
Arranging and outputting a plurality of random keypads according to a preset layout in the keypad interface,
Disposing each character key included in each random keypad in a one-to-one correspondence with the plurality of random keypads according to the layout;
When a user's random keypad input occurs, the character key of any one of the random keypads corresponding to the input random keypad position is based on a predetermined state of the character key arrangement of one of the plurality of random keypads. Decrypting with the user's input password,
Comparing the preset password with the input password,
And the random keypad is randomly arranged and includes the same number of character keys as the number of the random keypads. The method of claim 8,
Arranging and outputting the plurality of random keypads according to a preset layout in the keypad interface,
Output the plurality of random keypads in different colors, respectively, and specify a random keypad of a color preset by a user among the plurality of random keypads as the preset condition,
And a color displayed on the plurality of random keypads is randomly displayed. The method of claim 8,
Arranging and outputting the plurality of random keypads according to a preset layout in the keypad interface,
Respectively outputting the plurality of random keypads in different colors, designating a randomly selected color among the plurality of random keypads as the preset condition, and outputting the selected color as a voice,
And a color displayed on the plurality of random keypads is randomly assigned.

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