KR20080033224A - User terminal and authenticating apparatus for user authentication using user's behavior pattern information and method for authenticating using the same - Google Patents

Abstract

A user terminal and an authenticating apparatus for user authentication using user behavior pattern information, and an authentication method using the same are provided to improve the security of the user authentication and easily perform an authentication procedure. A user terminal for user authentication using user behavior pattern information includes an input unit(21), a behavior pattern information extracting unit(22), and a transmission unit(23). The input unit receives authentication information from a user for authenticating the user. The behavior pattern information extracting unit extracts the user behavior pattern information based on the authentication information. The transmission unit transmits at least one of the authentication information and the behavior pattern information. The input unit includes a typing element, and the typing element allows a user to type and input the authentication information.

Description

USER TERMINAL AND AUTHENTICATING APPARATUS FOR USER AUTHENTICATION USING USER'S BEHAVIOR PATTERN INFORMATION AND METHOD FOR AUTHENTICATING USING THE SAME}

The present invention relates to a user terminal, an authentication apparatus, and an authentication method used for user authentication using user behavior pattern information. More specifically, the user's behavior pattern information is extracted from authentication information input by the user through the user terminal. The present invention relates to a user terminal, an authentication apparatus, and an authentication method capable of improving security of user authentication by performing authentication of a user using authentication information and user behavior pattern information.

In order to be provided with various online services provided by wire / wireless communication service companies as well as banks / securities / public services, user authentication is required to determine whether a user of a terminal is a real user. Conventionally, as a method for authenticating a user, a method of inputting an ID (identifier) and an authentication password and comparing them is widely used. In order to register an ID and an authentication password at various online service subscriptions, and to use a service thereafter. It is a method for authenticating a user by receiving an ID and an authentication password as authentication information every time the service providing server is connected, and comparing the input authentication information with the ID and authentication password registered at the time of initial service subscription.

However, such an authentication method has a problem in that an ID or an authentication password are often easily leaked because many users use things that can be easily inferred by a user's social security number, a backseat number, and the like. In addition, the ID or authentication password is often leaked out even by hacking or the like. In such a case, once the information is stolen or leaked, there is no method of preventing the use of the third party who obtained the information.

In addition, when using a terminal capable of inputting authentication information using a so-called QWERTY keyboard, a relatively complicated authentication password can be combined / generated using all keys (numbers / letters / figures) on the keyboard. For users of mobile devices such as mobile phones, which have a key mattress (usually a numeric key mattress) as an input device, it is common to input 4 to 6 simple numbers as an authentication password. There is a problem of becoming vulnerable. There is even no such input method. In addition, due to the nature of the mobile environment, it is often necessary to enter an authentication password while moving in a public place. Therefore, a method for improving the security of user authentication in a mobile environment is urgently required.

Conventionally, as a method for solving such a problem, a method of using physical characteristics such as a user's fingerprint or pupil as authentication information has been proposed, but additional hardware is required to scan a fingerprint, pupil, and the like, and the cost is increased. There is a problem that is difficult to put practical use.

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a method and apparatus that can improve security without causing inconvenience to a user by a simple method when authenticating a user.

In addition, the present invention provides a method and apparatus for improving the security of user authentication and easily performing an authentication procedure in a case where the input of authentication information is limited or when it is necessary to input authentication information in a public place. For another purpose.

In addition, since the present invention extracts the behavior pattern information using the typing pattern of the user terminal, another object of the present invention is to provide a method and apparatus that can easily be provided with the authentication service without any additional action.

In addition, another object of the present invention is to provide a method and an apparatus capable of minimizing the probability that a third party can succeed in authentication even if the user's authentication information is leaked.

In order to achieve the above object, according to an aspect of the present invention, in the user terminal used for user authentication using the behavior pattern information of the user, an input unit for receiving authentication information from the user to authenticate the user, the authentication information A behavior pattern information extracting unit for extracting behavior pattern information of the user based on the at least one; and a transmitting unit transmitting at least one of the authentication information or the behavior pattern information to an authentication device. Can be.

Here, the input unit includes a typing means for the user to enter by typing the authentication information (typing), the behavior pattern information extraction unit based on the typing pattern in which the user inputs the authentication information using the typing means It can be configured to extract the behavior pattern information.

The typing pattern of the authentication information may include an input duration in which each key constituting the authentication information is input, a pressure at which each key is input, or an interval between the keys. It may be configured to be obtained based on at least one or more of the interval (interval).

The input unit may include gesture recognition means for recognizing a user's motion, and the behavior pattern information extracting unit may allow the user to extract behavior pattern information based on the motion pattern detected by the gesture recognition means. Can be configured.

In addition, the motion recognition means may be configured to include a 3-axis sensor capable of sensing gravity.

In addition, the gesture recognition means may be installed in a wearable device worn by the user and configured to recognize the gesture of the user.

The input unit may include image input means capable of inputting an image, and the behavior pattern information extracting unit may be configured to extract behavior pattern information based on a movement pattern of the image input through the image input means. .

The input unit may include a voice input unit capable of inputting a voice, and the behavior pattern information extracting unit may be configured to extract the behavior pattern information based on a pattern of the voice input through the voice input unit.

The input unit may include a writing input unit, and the behavior pattern information extracting unit may be configured to extract behavior pattern information based on a writing pattern of authentication information input to the writing input unit.

In addition, the writing input unit may be configured to include a touch screen or a touch pad.

In addition, the information transmission between the input unit, the behavior pattern information extracting unit and the transmitting unit may be configured to be performed by wire transmission or wireless transmission.

According to another aspect of the present invention, in a user terminal used for user authentication using user behavior pattern information and a user authentication method using an authentication device, the user terminal receives the authentication information for authenticating the user from the user; Step 1, The second step of extracting the behavior pattern information of the user based on the authentication information received by the user terminal, The user terminal transmits at least any one or more of the authentication information or the behavior pattern information to the authentication device And a fourth step of the user authentication using the at least one of the received authentication information or behavior pattern information by the authentication apparatus.

Here, the user terminal comprises a typing means for the user to enter by typing the authentication information (typing), the second step is based on the typing pattern in which the user inputs the authentication information using the typing means; Can be configured to extract the behavior pattern information.

The typing pattern of the authentication information may include an input duration in which each key constituting the authentication information is input, a pressure at which each key is input, or an interval between the keys. It may be configured to be obtained based on at least one or more of the interval (interval).

According to another aspect of the present invention, in the authentication device for performing the user authentication using the user terminal used for user authentication using the behavior pattern information of the user, at least any of the user authentication information or behavior pattern information from the user terminal Comparing the information stored in the database with at least one of a receiving unit for receiving one or more, a database storing at least one or more of the authentication information or behavior pattern information of the user and the authentication information or behavior pattern information of the user received by the receiving unit By providing an authentication device characterized in that it comprises an authentication unit for performing the authentication of the user.

Here, the authentication unit may be configured to include a first authentication unit for performing authentication using the authentication information and a second authentication unit for performing authentication using the behavior pattern information.

In addition, the authentication unit may be configured to further include a transmission unit for transmitting the authentication result to the user terminal.

The behavior pattern information may be configured to be extracted based on a typing pattern of authentication information inputted by a user by using the typing means included in the user terminal.

The typing pattern of the authentication information may include an input duration in which each key constituting the authentication information is input, a pressure at which each key is input, or an interval between the keys. It may be configured to be obtained based on at least one or more of the interval (interval).

According to the present invention, it is possible to provide a method and an apparatus which can improve security without causing inconvenience to a user by a simple method when authenticating a user.

In addition, according to the present invention, in the case where the input of the authentication information is limited or when it is necessary to input the authentication information in a public place, etc., a method and apparatus for improving the security of user authentication and easily performing the authentication procedure are provided. can do.

In addition, according to the present invention, since the user extracts the behavior pattern information using the typing pattern of the user terminal, it is possible to provide a method and apparatus that can be easily provided with the authentication service without any action.

Further, according to the present invention, since not only the ID and the authentication password but also the user's behavior pattern information are required as the authentication information, it is possible to improve the security of the user authentication system. In particular, it is possible to greatly enhance the security of user authentication in a mobile environment where the input of information is restricted and authentication information must be input in a public place. In addition, the level of security required by the user or the system can be easily implemented.

In addition, according to the present invention, even if the user's authentication information is leaked, another object of the present invention is to provide a method and apparatus that can minimize the probability that the third party can succeed in authentication using the leaked authentication information. .

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention;

1 is a view schematically showing the overall connection relationship between a user terminal and an authentication device for performing a user authentication method according to the present invention.

As shown in FIG. 1 (a), the present invention provides a method for authenticating whether a user of a user terminal 11a, 11b wirelessly or wired connected to an authentication device 12 connected to the Internet 13 is a true user. In addition to the authentication password, the information on the behavior pattern of the user entering the authentication password is also used.

On the other hand, as shown in Figure 1 (b), the user terminal 14, 15 of the present invention has an authentication device and a database in the user terminal (14, 15) itself, the self in the user terminal (14, 15) It may be to authenticate.

For example, a terminal or a mobile device using a self-locking function when several people use the same terminal after being authenticated. In addition, an input unit for receiving authentication information from a user and behavior patterns from the received authentication information In the case of having a behavior pattern information extracting unit for extracting information, a transmitting unit for transmitting at least one or more of the authentication information or behavior pattern information to the authentication apparatus, the present invention is independent of whether the authentication apparatus is inside or outside the user terminal. Corresponds to the user terminal.

(1) user terminal

2 is a diagram illustrating an internal configuration of an embodiment of a user terminal used for user authentication using user behavior pattern information according to the present invention.

As shown in FIG. 2, the user terminal according to the present invention includes an input unit 21, a behavior pattern information extracting unit 22, and a transmitting unit 23.

The input unit 21 of the present invention corresponds to a user interface for receiving authentication information required for authentication of a user from a user, and includes all kinds of input means, gesture recognition means, image input means, voice input means, or handwriting input means. It includes an input means, and is not limited to a particular type of input means.

The user inputs authentication information for authenticating the user through the input unit 21. Types of the input unit and authentication information input through the input unit will be described later with reference to the behavior pattern information.

The behavior pattern information extractor 22 extracts the behavior pattern information of the user based on authentication information input by the user through the input unit 21. As described above, the behavior pattern information is a concept including all information that may indicate a characteristic behavior pattern of a user, and some representative examples thereof will be described below.

(A) Typing pattern

The typing pattern refers to a typing pattern of a user when inputting authentication information through a typing means such as a keyboard and a keypad. That is, in the case of using an ID or authentication password composed of a combination of letters / numbers / symbols as authentication information, behavior pattern information is obtained based on a typing pattern for inputting authentication information. In this case, the input unit 21 for receiving authentication information includes typing means such as a keyboard, a keypad, and the like.

More specifically, a typing pattern for inputting authentication information includes an input duration in which each key constituting the authentication information is input, a pressure when each key is input, or an interval between the input key and the key. It can obtain | require from etc.

3A to 3E illustrate examples of obtaining behavior pattern information based on a typing pattern in which authentication information is input when a user inputs authentication passwords "1, 3, 5, 7" as authentication information. It is a figure which shows. Each will be described below.

① Duration of input

The input duration in which each key is input means how long a key is input when the respective keys "1", "3", "5" and "7" constituting the authentication password are input through the input unit 21. It means. For example, as shown in Fig. 3A, "1" is input for 300 ms, "3" is input for 500 ms, "5" is input for 700 ms, and "7" is 250 If it has been entered for several seconds, the input duration as the typing pattern for the authentication passwords "1, 3, 5, 7" becomes "300 ms, 500 ms, 700 ms, 250 ms", and some or all of them are the behavior pattern information. It is available.

The input duration "300 ms, 500 ms, 700 ms, 250 ms" may be transmitted as the behavior pattern information as it is, or a value substituted according to a predetermined criterion may be transmitted.

In the case of transmitting the input duration by replacing the input duration according to a predetermined criterion, the input duration may be replaced by at least two values according to the security level required by the user or the authentication system. That is, when the required level of security is extremely low, the input duration can be replaced by two values of 1 or 0. For example, when the input duration is 500 ms (reference time) or more, " 1 " Therefore, if it is less than 500 ms, if it is replaced with "0", the input duration is replaced with "0, 1, 1, 0" and transmitted to the authentication apparatus.

The higher the level of security required, the more granular the reference time can be used to replace the input duration with multiple levels of value. For example, the input duration may be replaced with three values such as "0" for less than 250 Hz, "1" for less than 750 Hz, and "2" for more than 750 Hz. In this way, when the value is replaced with three values, more accurate input of the authentication password is required as compared with the case where the value is replaced by two values, thereby improving the security of the authentication system.

② pressure

The pressure at which each key is input means that when the respective keys " 1 ", " 3 ", " 5 " and " 7 " constituting the authentication password are input through the input unit 21, it is applied to the input unit 21. Means pressure. The input section 21 should have means for measuring pressure. For example, as shown in FIG. 3 (b), a pressure of 700 Pa for inputting "1", 500 Pa for entering "3", 170 Pa for entering "5", and 250 Pa for entering "7" is measured. If so, the pressure as the typing pattern for the authentication password "1, 3, 5, 7" is "700Pa, 500Pa, 170Pa, 250Pa", some or all of which may be used as behavior pattern information.

Transmitting the pressure as the behavior pattern information to the authentication apparatus as it is, or substituting the two or more values according to the required security level is the same as the input duration.

③ Interval

The interval between the key and the key means an input time interval between any two keys when each of the keys "1", "3", "5" and "7" constituting the authentication password is input through the input unit. For example, as shown in FIG. 3 (c), after inputting “1”, “3” is input at the time when 600 μs have elapsed, and “5” at the time when 300 μs has elapsed again. If "7" is entered when 1000 ms has elapsed again, the interval as a typing pattern for the authentication passwords "1, 3, 5, 7" becomes "600 ms, 300 ms, 1000 ms". Some or all of these may be used as behavior pattern information. Alternatively, for example, an interval between "1" and "5" may be used as the behavior pattern information. In the case of inputting a confirmation key confirming that all authentication passwords have been entered, the interval between the inputting of the last key "7" of the authentication password and the confirmation key may be included in the interval.

The transmission of the interval as the behavior pattern information to the authentication apparatus as it is, or the substitution of two or more values according to the required security level is the same as in the case of the input duration.

In addition, as shown in FIG. 3 (d), the time from one key input to the next key input may be used as the behavior pattern information, as shown in FIG. 3 (e). Similarly, the measured input duration can be displayed as a graph, and the angle formed by the horizontal axis of the line segments connecting the peaks of the graph can be used as behavior pattern information.

In addition, the typing pattern information shown in FIGS. 3A to 3E may be arbitrarily combined and used as the behavior pattern information. That is, all types of information that can be obtained based on a typing pattern for inputting authentication information can be used as behavior pattern information, and the typing pattern of the present invention is also limited to the three listed above (input duration, pressure, interval). It is not.

Extracting the behavior pattern information from the behavior pattern information extracting unit 22 may be performed collectively after all the authentication information is input through the input unit 21, and each of the components configuring the authentication information through the input unit 21. Each time the key is input, it may be implemented individually.

4A is a diagram illustrating an example of authentication information and behavior pattern information used in the present invention, and FIG. 4B is a diagram illustrating another example of authentication information and behavior pattern information used in the present invention. As shown in (a) and (b) of FIG. 4, the behavior pattern information extracted by the behavior pattern information extracting unit 22 may exist separately from the authentication information input by the input unit 21, or may be fused with the authentication information. It may be present in a modified form.

(B) action pattern

The operation pattern refers to a characteristic pattern of a user's operation received as authentication information. In this case, the input unit receiving the authentication information should be a means for recognizing the user's motion, for example, a 3-axis sensor capable of sensing gravity or a user's body worn on the user's body. There is a wearable device that recognizes the wearable device.

By adopting three-axis sensors (three-axis geomagnetic sensor, three-axis acceleration sensor) that can detect the direction of movement when the user moves up, down, left and right, it is possible to detect the movement of the user terminal and digitize it. It can be used as behavior pattern information. For example, moving the user terminal up and down twice, left and right, and once along the diagonal line may be input as authentication information, and behavior pattern information may be extracted therefrom and used for user authentication. In more detail, the width | variety of the operation | movement, an operation speed, etc. can be specifically numerically used.

A wearable device for a user is typically a data glove. A data glove is a glove with a fluid sensor that measures the movement or position of a finger and wrist. It is a device that measures the motion of a finger and wrist and converts the information into a three-dimensional coordinate format. The user inputs the authentication information defined by the operation of the finger or the wrist while wearing the data glove, and the numerical behavior pattern information is extracted therefrom and used for authentication of the user. For example, the numerical value of the order, time, speed, angle, etc. of bending five fingers in turn can be used as behavior pattern information.

(C) motion patterns of images

The motion pattern of the image refers to a motion pattern of a specific object that can be detected from the image input through the image input means.

It is somewhat similar to the case of motion recognition in that it extracts behavior pattern information from the movement of a specific object, but unlike the motion pattern that directly detects motion, the motion pattern of the image is once inputted from the image input to the input unit 21. It is different from motion recognition in that it detects the movement of a specific object.

The image input means may be a camera, and the like, and movement pattern information may be extracted from the movement of a specific object, for example, the number and speed of eye blinks, the trajectory and the speed at which a finger moves, and the like. That is, in this case, in order to authenticate, an image corresponding to authentication information is input through a camera, and a motion of a specific object is extracted from the received image, and this value is digitized and used as behavior pattern information.

(D) voice patterns

The speech pattern means a characteristic speech pattern that can be extracted from the speech input from the speech input means.

As the acquired feature of the user, not the inherent characteristics of the user such as a tone unique to the user, the speed of speech, intonation, etc. can be used as the behavior pattern information, and a voice pattern arbitrarily determined by the user can be utilized as the behavior pattern information.

The user can register a certain voice pattern at the time of registering authentication information and behavior pattern information, and extracts the voice pattern from the voice input from the voice input means at the time of user authentication and confirms whether or not the voice pattern matches with the registered voice pattern. Authentication can be performed. For example, in the case of registering his name "Hong Gil-dong" as voice as authentication information, "Hong" and "Dong" are long voices with low voice, and "Gil" is high voice. If the voice authentication information is input to the storage unit, the authentication can be successful. In such a case, the voice pattern for the voice authentication information "Hong Gil Dong" becomes the information which digitized the high storage group which pronounces "Hong Gil Dong".

The voice input means may include a microphone, and may receive a voice corresponding to the authentication information through the microphone, extract a characteristic voice pattern from the input voice, and digitize it and use it as behavior pattern information.

(E) handwriting pattern

The handwriting pattern detects a characteristic handwriting pattern from authentication information input to a handwriting input means such as a touch screen or a touch pad, and extracts behavior pattern information from it for use in user authentication.

The user directly signs the touch screen or touch pad and uses it for authentication of the user. However, while the conventional method performs authentication of a user based only on the similarity of the form of the user signature, in the present invention, not only the form of the signature of the user inputted by handwriting, but also the characteristic handwriting pattern extracted from the behavior pattern information User authentication is performed using

That is, a characteristic writing pattern derived from the user's writing habits such as the order in which the signature is input, the direction, the speed and pressure of inputting a specific stroke, and the like are used as the behavior pattern information. Such characteristic writing patterns may be derived from the writing habits of the user or may be arbitrarily determined by the user.

In this case, as a writing input means for inputting a user's signature or the like, a touch screen or a touch pad is typical, but is not limited to such a device, and regardless of the name, it is possible to recognize a characteristic writing pattern of the user. It includes all means. A user who intends to use such a writing pattern as user behavior pattern information for user authentication performs a signature including a characteristic writing pattern at the time of registering authentication information, and the characteristic writing pattern is digitized with the signature and registered as the behavior pattern information.

Although some examples have been described with respect to behavior pattern information, which is a feature of the present invention, the behavior pattern information of the present invention is not limited to the above-described examples, and is not a physical feature (fingerprint, pupil, tone, etc.) of the user. It includes all information that corresponds to behavioral characteristics.

The transmission unit 23 of the present invention transmits at least one or more of the authentication information received from the input unit 21 or the behavior pattern information extracted from the behavior pattern information extraction unit 22 to the authentication device. As shown in FIGS. 4A and 4B, the information transmitted by the transmitter 23 to the authentication apparatus may be in a form in which authentication information and behavior pattern information are separated, or may be in a fused form.

According to the present invention, a method for requesting user authentication from a user terminal to a wireless or wired authentication device includes receiving authentication information for authenticating a user, and extracting behavior pattern information of the user based on the authentication information. And transmitting at least one of the authentication information or the behavior pattern information to an authentication device.

(2) recording media

According to the present invention, a method for requesting user authentication from a user terminal to a wireless or wired authentication apparatus can be embodied as computer readable codes on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet). It also includes. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

(3) authentication device

FIG. 5 is a diagram illustrating an internal configuration of an embodiment of a user terminal used for user authentication using user behavior pattern information and an authentication apparatus using the same according to the present invention.

As shown in FIG. 5, the authentication apparatus according to the present invention includes a database 51, a receiver 52, an authentication unit 53, a transmitter 54, and a database manager 55.

FIG. 6 illustrates a form in which authentication information is stored in the database 51 of FIG. 5.

As shown in FIG. 6, the user information stored in the database 51 basically includes an ID for identifying a user and an authentication password specified by the user. When the user initially registers the authentication information with the authentication server, whether to use the second authentication is determined by a value of Yes or No, depending on whether or not to select the second authentication using the behavior pattern information. Is Yes, the behavior pattern information selected by the user or the system is stored.

There may be more than one behavior pattern information stored in the database, depending on the user or system. Since the behavior pattern information is extracted from the characteristic behavior pattern in which the user inputs authentication information, the behavior pattern information may not always match 100%, and it is necessary to accommodate a certain error range. In addition, when registering the behavior pattern information, it is preferable to input authentication information a plurality of times and extract and use the behavior pattern information therefrom. When the authentication information is input a plurality of times, a plurality of behavior pattern information is also extracted. Alternatively, the entire behavior pattern information may be stored in a database, or a plurality of behavior pattern information may be mathematically processed to represent one behavior. Pattern information may be extracted and stored.

FIG. 6 illustrates that the tolerance is stored for each behavior pattern information used by the user for authentication. For example, a user whose ID is KSK uses input duration and interval as behavior pattern information, and separately stores and stores the tolerance of the input duration and the tolerance of the interval separately. However, the tolerance may be specified and stored for each user. In the above example, only one tolerance may be stored as the tolerance of the user whose ID is KSK. The tolerance may be the same unit as the corresponding behavior pattern information, or may be defined as a tolerance ratio (percentage) for the behavior pattern information.

When the plurality of behavior pattern information is stored in the database, it is possible to authenticate whether the behavior pattern information input at the time of user authentication is compared with the plurality of behavior pattern information stored in the database as appropriate.

Behavior pattern information stored in the database may be updated every time authentication. For example, if the user authentication is successful, the existing behavior pattern information may be deleted, and the successful pattern information may be registered as new behavior pattern information, or the successful pattern information may be added to the existing behavior pattern information. You can also add Alternatively, when a plurality of behavior pattern information is stored in a database, the oldest behavior pattern information may be deleted, and the behavior pattern information that succeeds in authentication may be added.

The database may include information indicating what behavior pattern information is selected by the user or the system. That is, it may indicate whether a typing pattern or a writing pattern is selected as the behavior pattern information, or, if the typing pattern is selected, it may indicate which information of input duration, pressure, or interval is used.

Receiving unit 52 of the present invention receives at least one or more of the authentication information or behavior pattern information of the user transmitted from the user terminal. The received information is transmitted to the authenticator 53 for user authentication.

The authentication unit 53 of the present invention compares at least one or more of authentication information or behavior pattern information received by the reception unit 52 with information registered in the database 51 to perform user authentication.

For example, the authenticator 53 searches the database 51 using the ID of the authentication information received by the receiver 52 as a keyword. If an ID matching the corresponding ID is not found in the database 51, authentication fails and requests the user terminal to re-enter authentication information.

If an ID that matches the ID of the authentication information sent from the receiver 52 is found in the database 51 search, the comparison of the information stored in the database 51 corresponding to the ID with the information received by the receiver 52 is performed. do. In the comparison, authentication is successful only when both the authentication password and the behavior pattern information match, and the user terminal enters a state in which the desired online service can be provided. However, if any of the two pieces of information do not match, the authentication fails, and a screen for requesting re-entry of the authentication information is transmitted to the user terminal.

In the above description, whether or not the authentication password of the authentication information transmitted from the reception unit 52 and the authentication password stored in the database 51 means 100% agreement. For example, in the case where the authentication password is "1, 3, 5, 7", the authentication password transmitted from the receiving unit 52 and the authentication password stored in the database 51 must match completely to succeed in authentication.

However, whether or not behavior pattern information matches may not mean 100% match. As described above, when the behavior pattern information extracting unit 22 of the user terminal transmits a value obtained by substituting the extracted behavior pattern information according to a predetermined criterion to the authentication apparatus, the behavior pattern information and the receiving unit 52 stored in the database 51. Although the behavior pattern information transmitted from) may be required to match 100%, when the behavior pattern information extracted by the behavior pattern information extracting unit 22 of the user terminal is transmitted to the authentication device as it is, the behavior pattern stored in the database 51 There is a case where it is not possible to request that the information matches the behavior pattern information transmitted from the receiver 52 to 100%. Because the behavior pattern information of the user is not always the same, it is rather reasonable to allow a certain error range. That is, as described in the case of using the input duration among the typing patterns as the behavior pattern information, the behavior pattern information transmitted from the reception unit 52 is the behavior pattern information when the authentication password is input, "300 ms, 500 ms, 700 kHz, 250 kHz "may be transmitted as it is. In such a case, the behavior pattern information stored in the database 51 and the behavior pattern information transmitted from the receiver 52 are rarely exactly matched, and it is common to check whether the behavior pattern information is matched within a certain error range.

At this time, the level of security required by the user or the system can be easily implemented according to how the error range is set. For example, if the error range is set very small, such as 10 ms, the user must enter the authentication password at a very accurate timing, and the level of security is increased. If the error range is set large, such as 100 ms, the security level is lowered. The database 51 may store the allowable error range together with the type of behavior pattern information selected by the user or the system.

The authentication unit 53 of the present invention may include a first authentication unit and a second authentication unit. The first authentication unit performs authentication of a user using only an authentication password (authentication information) as in the conventional authentication device. 2 The authentication unit authenticates the user using the behavior pattern information extracted from the authentication information. Whether the authentication of the user ends with the authentication in the first authentication unit or the authentication of the second authentication unit is also performed, the user or the system determines when initially registering the authentication information with the authentication server. Information about whether the user performs the second authentication is recorded in the database 51.

A process of the user terminal accessing the authentication server to authenticate the user will be described in detail later with reference to FIGS. 8 and 9.

The transmitter 54 of the present invention transmits the authentication result from the authenticator 53 to the user terminal, and the database manager 55 modifies, adds, deletes or updates the authentication information or behavior pattern information of the user stored in the database. .

7 is a flowchart illustrating an embodiment in which a user registers authentication information and behavior pattern information in an authentication server. In the following description, it is assumed that ID and authentication password are used as authentication information, and a typing pattern is used as behavior pattern information.

When a service subscriber registers for a service to be subscribed to, it usually registers an ID and an authentication password. In the present invention, the user's behavior pattern information can be selectively registered as well as an ID and an authentication password. When the user connects the user terminal to the authentication server, the authentication server transmits a logon screen to the user terminal (S71).

If the user requests the authentication information registration screen, the authentication server transmits the user authentication information registration screen (S72). Before the user inputs the ID and the authentication password, the user determines whether to perform authentication using the behavior pattern information, that is, whether to use the second authentication (S73).

If the user or the system does not perform the second authentication, an ID and an authentication password are input as authentication information (S74). When the user or the system performs the second authentication, information related to the behavior pattern information, such as what behavior pattern information to use and the tolerance range, is selected (S75). For example, when a user wants to use input duration and pressure among typing patterns as behavior pattern information as behavior pattern information, the input duration and pressure are selected as behavior pattern information. In addition, as the tolerance range, an input duration of 50 kPa and a pressure of 100 Pa can be selected. In addition, it is possible to select whether to transmit the behavior pattern information to the authentication device as it is or to substitute a plurality of values, and to select how many values each of the input duration and pressure are transmitted according to the level of security desired by the user. have. Although the information related to the behavior pattern information has been described as being selected by the user, the authentication system may be selected, and the system and the user may each select a part.

When the user or the system performs the second authentication, when the information related to the behavior pattern information is selected, the behavior pattern information extraction unit extracts the behavior pattern information at the time of inputting the authentication information, that is, the ID or the authentication password (S76).

If the user or the system does not perform the second authentication, the ID and the authentication password are transmitted to the authentication server when the second and second authentication is performed (S77).

8 is a flowchart illustrating an embodiment in which a user connects a user terminal to an authentication server and requests authentication using behavior pattern information.

When the user connects the user terminal to the authentication server, the authentication server transmits a logon screen to the user terminal (S81). When the user inputs the ID and the authentication password through the input unit of the user terminal (S82), the behavior pattern information extraction unit of the user terminal extracts the behavior pattern information from the input authentication information, that is, the ID or authentication password (S83). Thereafter, the user terminal transmits ID, authentication password, and behavior pattern information to the authentication server to request user authentication (S84). When the result of the authentication success is transmitted from the authentication device, the user can use the corresponding service (S85, S86). However, if the authentication fails, the screen is requested to re-enter the authentication information, and the user needs to input the authentication information again (S85 and S82).

9 is a flowchart illustrating an embodiment of authenticating using behavior pattern information in an authentication apparatus.

The receiving unit of the authentication device receives the ID, the authentication password, and the behavior pattern information together with the authentication request from the user terminal (S91). The received information is sent to the authentication unit of the authentication apparatus, and the authentication unit performs primary authentication using the ID and the authentication password (S92). The authentication method using ID and authentication password is the same as the conventional authentication method.

If the primary authentication fails, the transmitting unit of the authentication apparatus transmits a screen requesting re-entry of the authentication information to the user terminal with the result of authentication failure (S93, S94). If the first authentication is successful, it is checked whether the current user is a user who performs the second authentication using the behavior pattern information of the user as described above (S93 and S95).

If the current user is a user who does not perform secondary authentication, the authentication is successful, and the user is allowed to access the corresponding server (S95, S98).

If the current user is the user who performs the second authentication, second authentication is performed (S95, S96), and authentication failure and re-entry of authentication information (S97, S94) or authentication success and the server are performed according to the success. Access is allowed (S97, S98).

1 is a view schematically showing an overall connection relationship between a user terminal and an authentication apparatus for performing a user authentication method according to the present invention;

2 is a diagram showing the internal configuration of an embodiment of a user terminal according to the present invention;

3 (a) to 3 (e) are views illustrating an example of extracting behavior pattern information from a typing pattern in which authentication information is input;

Figure 4 (a) is a view showing the authentication information and behavior pattern information used in the present invention,

4 (b) is a diagram illustrating another example of authentication information and behavior pattern information used in the present invention;

5 is a diagram showing an internal configuration of an embodiment of an authentication apparatus according to the present invention;

6 is a view showing information stored in the database of the authentication apparatus according to the present invention;

7 is a flowchart illustrating an embodiment in which a user registers authentication information and behavior pattern information in an authentication server;

8 is a flowchart illustrating an embodiment in which a user connects a user terminal to an authentication server and requests authentication using behavior pattern information.

9 is a flowchart illustrating an exemplary embodiment in which authentication is performed using behavior pattern information in the authentication apparatus.

<Description of Signs of Major Parts of Drawings>

11a, 11b user terminal

12 certified devices

21 input

22 behavior pattern information extraction unit

23 Transmitter

51 database

52 receiver

53 Certification Department

54 Transmitter

55 Database Administration Department

Claims (19)

In the user terminal used for user authentication using the behavior pattern information of the user, An input unit for receiving authentication information from the user to authenticate the user; A behavior pattern information extracting unit which extracts behavior pattern information of the user based on the authentication information; And Transmitter for transmitting at least one or more of the authentication information or the behavior pattern information to the authentication device A user terminal comprising a. The method of claim 1, The input unit includes a typing means for allowing a user to enter authentication information by typing. And the behavior pattern information extracting unit extracts behavior pattern information based on a typing pattern in which a user inputs authentication information using the typing means. The method of claim 2, The typing pattern of the authentication information may include an input duration in which each key constituting the authentication information is input, a pressure when each key is input, or an interval between each key and the key ( user terminal, characterized in that obtained on the basis of at least one or more of: (interval). The method of claim 1, The input unit includes gesture recognition means for recognizing a user's motion, And the behavior pattern information extracting unit extracts behavior pattern information based on the motion pattern detected by the motion recognition means. The method of claim 4, wherein The motion recognizing means includes a 3-axis sensor capable of sensing gravity. The method of claim 4, wherein The motion recognition means is installed in a wearable device (wearable device) for the user is characterized in that the user terminal to recognize the motion of the user. The method of claim 1, The input unit includes image input means for inputting an image, The behavior pattern information extracting unit extracts behavior pattern information based on a movement pattern of an image input through the image input means. The method of claim 1, The input unit includes a voice input means for inputting a voice, And the behavior pattern information extracting unit extracts behavior pattern information based on a pattern of speech input through the speech input means. The method of claim 1, The input unit includes handwriting input means, The behavior pattern information extracting unit extracts behavior pattern information based on a writing pattern of authentication information input to the writing input unit. The method of claim 9, The handwriting input unit comprises a touch screen or a touch pad. The method according to any one of claims 1 to 10, Information transmission between the input unit, the behavior pattern information extracting unit and the transmitting unit is performed by wire transmission or wireless transmission. In the user authentication method using the user terminal and the authentication device used for user authentication using the behavior pattern information of the user, A first step of receiving, by the user terminal, authentication information for authenticating the user from the user; Extracting behavior pattern information of the user based on the authentication information input by the user terminal; A third step of transmitting, by the user terminal, at least one or more of the authentication information and the behavior pattern information to an authentication device; And A fourth step of performing, by the authentication apparatus, user authentication using at least one of the received authentication information and behavior pattern information User authentication method comprising a. The method of claim 12, The user terminal includes a typing means for the user to enter by typing the authentication information (typing), The second step, the user authentication method, characterized in that for extracting the behavior pattern information based on the typing pattern in which the user inputs the authentication information using the typing means. The method of claim 12, The typing pattern of the authentication information may include an input duration in which each key constituting the authentication information is input, a pressure when each key is input, or an interval between each key and the key ( user authentication method, characterized in that obtained based on at least one of the (interval). An authentication apparatus for performing user authentication using a user terminal used for user authentication using user behavior pattern information, A receiver configured to receive at least one of authentication information and behavior pattern information of a user from a user terminal; A database storing at least one of authentication information and behavior pattern information of a user; And An authentication unit for performing authentication of the user by comparing the information stored in the database with at least one of the user authentication information or behavior pattern information received by the receiver Authentication apparatus comprising a. The method of claim 15, The authentication unit, A first authenticator configured to perform authentication using the authentication information; And A second authentication unit performing authentication using the behavior pattern information Authentication apparatus comprising a. The method of claim 15, And an transmitter for transmitting the authentication result of the authentication unit to the user terminal. The method of claim 15, And the behavior pattern information is extracted based on a typing pattern of authentication information inputted by a user by using the typing means included in the user terminal. The method of claim 18, The typing pattern of the authentication information may include an input duration in which each key constituting the authentication information is input, a pressure when each key is input, or an interval between each key and the key ( and an authentication device obtained based on at least one of the following methods.

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