KR101498670B1 - The generation method and device of password by using biometrics-based confidence interval sets - Google Patents

Abstract

The disclosed technology relates to a method and a device to generate a password by using a bio-information-based confidence interval group. The method includes: a step of inputting a predetermined ID into an ID input box, provided by a website, by using an input unit of a user terminal, and selecting a password input box for the input of a password; a step of photographing the face of a user of the user terminal by operating a camera of the user terminal following the selection of the password input box; a step of obtaining access to a confidence interval group, stored in the user terminal, by extracting bio-information of the face included in the image; a step of extracting a site code of the website from the user terminal; a step of generating the password by applying the number of times re-registering the passwords to the site code and the confidence interval group; and a step of making the generated password automatically inputted into the password input box. Therefore, as there is no need to memorize a password and the assumption, exposure, and illegal sharing of the password are fundamentally prevented, convenience and security are improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method and apparatus for generating a password using biometric information based trust interval sets,

The disclosed technique relates to a method and apparatus for generating a password that does not need to be stored using a confidence interval set, but which provides high security.

In general, many of the passwords used by a large number of people are 'what they know'. In fact, a large number of people use a number, a letter, or a combination of numbers and letters associated with it as a password. For example, passwords are often used in the form of 'abc0123', which combines the date of birth with the first name of the user.

As mentioned above, the greatest reason why many people use 'what they know' as a password is due to the convenience of being easy to remember. For the same reason, use the same password or similar password for multiple accounts. Occasionally, a password can be forgotten or lost, and sometimes it can be a nuisance. In the case of a password that is easy to remember, it will soon be easier to remember or retrieve it again. However, this is easily guessed from someone else and the probability of no longer being meaningful as a password increases.

In order to solve the security problem according to the conventional password type, the researchers have developed methods of passwordizing personal biometric information. As a representative example, there is an authentication method using fingerprint recognition. Since the biometric information is information containing unique characteristics of each individual, it is not necessary to memorize the biometric information by password, and it is possible to take advantage of providing high security.

However, there is a problem that devices capable of recognizing such biometric information must be separately provided, and it is difficult to extract a fixed value that can be used equally for a certain period of time from the biometric information recognized through the device. Therefore, However, they are not widely used. For example, in a process of accessing a website or performing a predetermined authentication procedure by a terminal such as a PC, a notebook or a smart phone, It is not used.

Korean Patent Laid-Open No. 10-2007-0044720 (entitled " Disposable password authentication system and method using face image ") is known as a conventional technique using biometric information as a password.

The disclosed technique is to provide a method of creating and managing a highly secure password at the same time that a user does not need to memorize membership and login by using a confidence interval set.

According to a first aspect of the present invention, there is provided a method for inputting a password, comprising the steps of: inputting a predetermined ID into an ID input field provided in a web site using input means of a user terminal and selecting a password input field for inputting a password; The method comprising the steps of: capturing an image of a user's face of the user terminal by driving a camera of the user terminal in response to selecting a password input field; extracting biometric information of the user face included in the image, Extracting a site code of the website from the user terminal, generating a password by applying a password re-registration count to the confidence interval set and the site code, and transmitting the password to the password input field The generated password is automatically To provide the password generating method using the living body information based on the confidence interval is set to a step force.

According to a second aspect of the present invention, there is provided a method for capturing a face of a user of a user terminal, the method comprising the steps of: inputting a password input field of a web site through input means of the user terminal, A camera, an image processing unit for extracting biometric information from the user face included in the image and comparing the extracted biometric information with a set of confidence intervals stored in the user terminal, an extracting unit for extracting a site code of the website from the user terminal, A credential generation unit for generating a password by applying a password re-registration count to the site code, and an input unit for automatically inputting the generated password in the password input field .

Embodiments of the disclosed technique may have effects that include the following advantages. It should be understood, however, that the scope of the disclosed technology is not to be construed as limited thereby, since the embodiments of the disclosed technology are not meant to include all such embodiments.

According to an embodiment of the disclosed technology, a method and apparatus for generating a password using a biometric information-based confidence interval set increases the diversity and complexity of letters constituting a password, but generates a password irrelevant to personal information, And it improves the security by blocking the unauthorized sharing.

In addition, by creating and managing different passwords for each web site account, it is possible to reduce the correlation between the passwords per account and improve the security by improving the independence.

In addition, there is no need for the user to store the password by automatically generating and inputting the password, and it is possible to prevent the inconvenience of finding and inputting the characters included in the password in various types of keyboards, thereby improving convenience.

Also, it has the advantage that it is robust against attacks such as stealth or random assignment as the password is automatically input.

In addition, it can be easily extended to a login page of a large number of web sites that log in using an ID and a password that are conventionally used, so that it can be easily applied.

1 is a flowchart illustrating a method of generating a password using a biometric information based confidence interval set according to an embodiment of the disclosed technology.
2 is a diagram illustrating a process of operating in a smartphone according to an embodiment of the disclosed technology.
3 is a block diagram of a password generation apparatus using a biometric information based trust interval set according to an embodiment of the disclosed technology.
4 is a diagram of a password generation apparatus using a biometric information based trust interval set of a mobile terminal according to an embodiment of the disclosed technology.
5 is a diagram showing an embodiment of a confidence interval set used in the disclosed technique.
6 is a diagram for generating a password in accordance with one embodiment of the disclosed technique.
7 is a diagram for generating a password in accordance with another embodiment of the disclosed technique.
8 is a diagram showing a password for each website generated according to the disclosed technique.
FIG. 9 is a diagram showing the security of passwords generated for each website according to the disclosed technique.

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.

It is to be understood that the singular < RTI ID = 0.0 > terms < / RTI > used herein should be interpreted to include a plurality of representations unless the context clearly dictates otherwise. And "comprises ", when used in this specification, specify the presence of stated features, numbers, steps, operations, elements, parts, or combinations thereof, Or combinations thereof, as a matter of course.

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. Accordingly, the presence or absence of each component described in this specification should be interpreted as a function.

1 is a flowchart illustrating a method of generating a password using a biometric information based confidence interval set according to an embodiment of the disclosed technology. Referring to FIG. 1, a method of generating a password using a biometric information based confidence interval set includes inputting a predetermined ID into an ID field provided in a web site using input means of a user terminal, selecting a password input field A step 120 of photographing a user's face of the user terminal by driving the camera of the user terminal in response to the password input field being selected 120, extracting biometric information of the user face included in the image, (130) a step of obtaining (130) an access right to a set of confidence intervals stored in the user terminal, extracting (140) a site code of the website from the user terminal, A step 150 of generating a password by applying a registration number, And a step of generating a password to be entered automatically (160).

In step 110, the user terminal inputs a predetermined ID into the ID input field provided in the web site using the input means, and selects a password input field for inputting the password. The user terminal includes input means for accessing the web site and inputting a predetermined ID in an ID input field provided in the web site. For example, the user terminal is a smart phone, and the touch panel of the smart phone can be used as an input means. In another example, the user terminal is a PC, and a keyboard and a mouse of a PC can be used as input means.

The user terminal accesses the web site using the input means. In accessing a web site, the user terminal can search for the name of the web site or enter the domain of the web site. For example, an address of a web site can be input in the address window.

On the other hand, in step 110, the user terminal premises that the user joins the web site before joining the web site and inputting the ID. Membership is carried out according to the normal procedure and only differences in the password generating step. The step of generating a password will be described later.

In step 110, the user terminal receives an ID field and a password field from the web site to log in the web site. The user terminal is capable of receiving a login page provided by a web site according to a conventional method.

When the login page is received as described above, the user terminal inputs a predetermined ID into the ID input field using the input means. Since the membership of the website has already been performed, the ID corresponding to the membership is entered. Then select the password field to enter the password.

For example, when the user terminal is a smart phone, the password input field can be selected by touching the user. In another example, when the user terminal is a PC, the password input field can be selected by clicking the mouse or operating the keyboard.

In the disclosed technique, the user does not need to memorize the ID and the password in the conventional method, and generates a password having higher security than the conventional password. Therefore, the user does not input the password directly but generates the password through the password generating device and automatically inputs it into the password input field. A method of generating and automatically inputting a password will be described later with reference to the following steps.

In step 120, the camera of the user terminal is driven according to the selection of the password input field. That is, if a password input field is selected according to a touch, a click, or the like as described above, the user terminal can use it as an operation signal for driving the camera.

On the other hand, the user terminal photographs the user's face of the user terminal as a video with the driven camera. The photographed image is used to extract biometric information for generating a password.

In operation 130, the biometrics information of the user's face included in the image is extracted to obtain access authority to the set of confidence intervals stored in the user terminal. If the face image of the user is acquired in step 120, the user terminal extracts the biometric information from the face image. For example, different minutiae or principal components for each individual can be extracted by the biometric information. Of course, you can also use the eigenface.

Meanwhile, the extracted biometric information is compared with a set of confidence intervals previously stored in the user terminal. The confidence interval set refers to a set having a certain number of biometric information as elements. For example, a form of {( u ₁ , v ₁ ), ( u ₂ , v ₂ ), ( u ₃ , v ₃ ), ..., ( u _m , v _m ) Lt; / RTI > The confidence interval set will be described in more detail with reference to FIG.

Meanwhile, the confidence interval set is stored in advance in the secure area of the user terminal. For example, a memory card, a smart card, or a heartbeat chip. Therefore, it does not leak to the outside without a separate authentication procedure. If the user moves to another terminal, it is also possible to perform the authentication through a separate authentication procedure such as an authorized certificate.

In step 130, it is determined whether the biometric information and the confidence interval set are matched according to a preset reference value. For example, if the number of elements of the confidence interval set is 20, and the biometric information extracted from the facial image is 20, if it is equal to 10 or more, it can be judged as matching. Of course, if it is less than that, it is possible to drive the camera again so that the face image of the user can be taken again. It is also possible to limit the number of times of re-shooting in consideration of security problems.

If it is determined that the biometric information extracted from the image is matched with the confidence interval set according to the above step, the user terminal obtains the access right to the confidence interval set.

In step 140, the site code of the website is extracted from the user terminal. It is possible to grasp the name of the web site when the user terminal accesses the web site according to a conventional web page transmission protocol. In addition, it is possible to grasp the IP or the domain of the website. And extracts the site code using this.

In extracting the site code, in step 140, site codes of x, y, and z represented by three integers are extracted. In one embodiment, the site code for the website facebook is the sum of the ASCII code values of each character in the domain, in order, x, y, z. That is, x = f + e + o, y = a + b + k, and z = c + o.

Since x, y, and z correspond to the element positions of the confidence interval set, the maximum number of elements of the confidence interval set can not be exceeded. Therefore, it is possible to apply the remaining operations so as not to exceed the maximum number of elements of the confidence interval set. For example, if the number of elements in the confidence interval set is m, mod m can be applied. And we can generate the final x, y, z value by applying +1 to each value considering that it starts from zero.

In step 150, a password is generated by applying a set of confidence intervals and a password re-registration count to the site code. After acquiring the access authority to the confidence interval set and generating the site code through steps 130 and 140, a password is generated by applying the number of password re-registration to them in step 150. [

The steps of generating a password will be described in detail with reference to Figs. 5 to 7. Fig. First, we extract some elements to be used for password generation in the confidence interval set. In step 150, the position of the element is calculated using the site code and the password re-registration count in order to extract the partial elements.

In one embodiment, _{x +0} u, _x u _+1, u _{+ x} from the elements of the confidence interval set corresponding to the calculated position and the site code values shown in FIG. _{5 ..., u x + (n} -1 ₎ , v _y , w _{z + c} . Hereinafter, the position of the extracted confidence interval set element is referred to as an index.

Obviously, the position at which the element corresponding to the index is extracted is limited to the security area in which the confidence interval set is stored. 5, u is the upper limit value of the confidence interval set, v is the lower limit value, and w is the value of u and v It is the average value. A total of 20 boxes shown in FIG. 5 are a confidence interval set, and are marked with 1 if they are included in each box, and 0 when they are not.

Where site code x is applied to position i of the confidence interval upper limit value u _i , y is the position of the lower limit value v _i , and z is the position of the mean value w _i . For the generation of the password, up to u _{x + ( n- 1)} values are used starting from u _{x + 0} which is the index x among the upper limit u . And v _y is used as the lower limit value v . And w _{z + c} is used among the average value w .

v

w의 식에서 u를 차례대로 바꿔가면서 n개의 패스워드 결과값을 계산한다.And generates a password of length n according to the above. XOR operation and MOD operation are used together with basic arithmetic operation to generate a password. Referring to FIG. 6, it can be seen that the result values for the password having the length n are sequentially generated. That is, u

v

In the expression of w, the result of n passwords is calculated while changing u in order.

Also, mod m is applied to the result value of each index. That is, the u, such as when the result element for a password as such as (a) the number of 6 or less, m of the set index is the confidence interval of the element to the password extracted and, exceeds m in FIG. 6 (b) The index is circularly applied and extracted.

v

w 식에 따라 계산된 값은 33~126의 범위를 벗어날 수가 있다. 따라서 u

v

w 값 각각에 대해 mod 연산을 적용한다. 예컨대, mod(126-33)을 적용하고 다시 +33을 적용할 수 있다In addition, each calculated result is converted into a character according to an ASCII code table. The mod operation is also applied to conversion to characters. In general, numbers, lower-case, upper-case and special characters in the ASCII code table range from 33 to 126. However, u

v

The value calculated according to the formula w can be out of the range of 33 to 126. Therefore u

v

For each w value, apply the mod operation. For example, you can apply mod (126-33) and apply +33 again

The mod operation applied here is for the case of numbers in ASCII code tables, lower-case letters, upper-case letters, and special characters. In case of using other character tables, a different expression may be applied.

In step 160, the user terminal automatically inputs the password into the password input field. The password generated in step 150 is extracted from the security area of the mobile terminal and input to the password input field of the web site. At this time, in the disclosed technique, it is possible to input the password of the ASCII code table, the lower case letter, the upper case letter and the special character in the password input field as they are, but there is no need for the user to remember the password, It is also possible to hide in the form of ***. If the password is automatically entered, the user can access the website.

2 is a diagram illustrating a process of operating in a smartphone according to an embodiment of the disclosed technology. Referring to FIG. 2, the disclosed technique may be implemented in the form of an application of a mobile terminal. The procedure for each step is as follows.

In the first step, we gain access to the confidence interval set. A confidence interval set is stored in advance in the mobile terminal. More preferably, the confidence interval set is stored in the security area of the chipset mounted on the mobile terminal. The above confidence interval aggregation is inaccessible by conventional methods. Accordingly, the biometric information is extracted from the face image of the user who drives the camera of the mobile terminal, and the biometric information is compared with the confidence interval set. If it is more than a certain level, it is possible to obtain access authority to the confidence interval set.

In the second step, you generate the site code. As the mobile terminal accesses the web site, information about the web site is stored in the mobile terminal. For example, the name, domain, and IP address of the web site may be stored. And generates the site code based on the above information. As a method of generating the site code, the method described above with reference to FIG. 1 can be used.

In the third step, a biometric-based password is generated. Extracts some elements of the confidence interval set by using the access right to the set of confidence intervals stored in the security area of the mobile terminal and generates a password using the generated site code and the preset number of password re- do.

Here, the number of times of re-registration of the password is used to prevent the password used in the past from being duplicated when changing the password. In other words, if a password is generated only in the set of the trusted interval stored in the mobile terminal and the name, IP, and domain which are unique information of the web site, the same password is always generated. Therefore, a password is generated by adding the number of password re-registration as a variable for generating different passwords.

In the fourth step, the generated password is automatically entered. That is, the password is automatically recorded in the password field instead of directly inputting the password by the user. Thus, there is no need for the user to remember the password, and at the same time, there is also the effect of preventing the concern about password leakage caused by the act of inputting the password at the same time.

FIG. 3 is a block diagram of a password generation apparatus using a biometric information based trust interval set according to an embodiment of the disclosed technology. FIG. 4 is a block diagram of a password generation apparatus using a biometric information based trust interval set of a mobile terminal according to an embodiment of the disclosed technology And Fig.

3 to 4, a password generation apparatus using a biometric information based confidence interval set is installed in a user terminal, and is driven by selecting a password input field of a web site through input means of the user terminal, An image processor 320 for extracting biometric information from the user face included in the image and comparing the biometric information with a set of confidence intervals stored in the user terminal, An extracting unit 330 for extracting a code, a generating unit 340 for generating a password by applying the number of password re-registration to the trust interval set and the site code, and an input unit for automatically inputting the generated password in the password input field 350).

The camera 310 is mounted on a user terminal. And a password input field of the web site is selected through the input means of the user terminal to photograph the user's face of the user terminal as an image. When the password input field is selected according to the input means of the user terminal, the camera 310 recognizes it as a drive signal for driving the camera. And is driven in accordance with the driving signal to photograph the user's face.

The processing unit 320 extracts biometric information from the user's face included in the image and compares the biometric information with a set of confidence intervals stored in the user terminal. The confidence interval set has a predetermined number of elements, and the biometric information extracted from the face is also extracted as a specific number. Therefore, if the reference value is exceeded by using a predetermined reference value, the access right to the confidence interval set is obtained.

The extracting unit 330 extracts the site code of the website from the user terminal. In extracting the site code of the website, the extracting unit 330 extracts site codes of x, y, and z represented by three integers. In one embodiment, the site code for the website naver is the sum of the ASCII code values of each character in the domain, in turn, to x, y, z. That is, x = n + e, y = a + r, z = v.

The generating unit 340 generates a password by applying the number of times of re-registration of the password to the confidence interval set and the site code. A password is generated by applying an access right to the set of confidence intervals acquired by the processing unit 320 and a password re-registration count, which is a value for preventing generation of the same password, to the site code extracted by the extracting unit 330. [ The detailed process of password generation is as described with reference to FIG. The generated password comes out of the security area where the confidence interval set is stored.

The input unit 350 automatically inputs the generated password. The input unit 350 inputs a password that has previously appeared out of the security area into the password input field of the web site. In the conventional case, the user himself or herself inputs his ID and password. However, in the disclosed technology, the user only inputs his / her own ID, and the password is input by the password generating device. In order to provide higher security as described above, the input unit 350 can record '*****' in the password input field.

5 is a diagram showing an embodiment of a confidence interval set used in the disclosed technique. As described above with reference to FIG. 1, the disclosed technique compares m pieces of biometric information included in a user's face in an image photographed with a camera and m elements of a confidence interval set stored in a security area of the user terminal. Referring to FIG. 5, a total of 20 boxes correspond to a confidence interval set, and a * denotes biometric information extracted from the inputted face image. If * is included in the box, it is displayed as 1, otherwise it is displayed as 0. If the ratio of 1 in m out of all m exceeds the reference value, it is judged to be matched to the confidence interval set.

Referring to FIG. 5, it can be seen that each element includes an upper limit value and a lower limit value. Each u on the top of the box represents the upper bound of each element, v the lower bound, and w the mean.

On the other hand, if it is determined that the set of the confidence interval is matched, the access right to the confidence interval set is obtained.

6 is a diagram for generating a password in accordance with one embodiment of the disclosed technique. The site codes extracted from the web site are x, y and z, respectively, and the site codes are applied to the upper limit value, the lower limit value and the average value of the confidence interval set elements. Then, sequentially calculate the password whose length is n.

On the other hand, the calculated password values are converted into characters according to the ASCII code table. The password value converted into the characters is finally exported out of the security area of the user terminal. Embodiments of the password calculated according to the operation of FIG. 6 will be described with reference to FIG. 8 below.

7 is a diagram for generating a password in accordance with another embodiment of the disclosed technique. The password generation method described above with reference to FIG. 1 extracts some elements from the confidence interval set stored in the user terminal to generate a password. However, as shown in FIG. 7, it is also possible to generate a password using a map calculated in advance for the entire confidence interval set element. In FIG. 7, the area denoted by black indicates where the password generated using all the elements of the confidence interval set and the site code and password re-registration count are located.

8 is a diagram showing a password for each website generated according to the disclosed technique. It is possible to generate passwords of different length for each website. That is, in the process of generating the initial password, it is possible for the user to set the length of the password in advance and store it in the security area of the user terminal together with the confidence interval set. Alternatively, it is also possible to set the length of the password according to the password policy of the website.

Meanwhile, as can be seen from FIG. 8, it can be seen that the password generated according to the disclosed technique is generated in a complicated manner when compared with the password type used conventionally by the users. In the conventional case, the form of the password has a simple structure so that the user can easily memorize it.

For example, if the user's name is Hong Kil-dong, we use a simple structure password such as 'hkd1234' by combining the numbers we know in the initials. However, the password generated by the disclosed technique has a complex structure that can not be remembered at a glance.

In addition, in the conventional case, the password used for each site is the same or similar, while the password generated by the disclosed technique can generate a completely different password for each site. Accordingly, unlike the conventional method, when one of the web site accounts in use is exposed, unlike the case where the accounts of other web sites are exposed in a cascade, even if one of the web site accounts is exposed only by using the generated password Other Web site accounts can continue to maintain high security regardless.

FIG. 9 is a diagram showing the security of passwords generated for each website according to the disclosed technique. Referring to FIG. 9, the complexity for each password and the security strength score according to the complexity can be confirmed. In order to obtain a certain criterion for comparing the complexity and security strength score of each site, all 8 digit passwords were generated. As can be seen from the chart, the distribution range from the minimum score of 100 to the minimum score of 68 to the maximum score of 100. We also calculated the security strength score and the complexity of the passwords of the type used to ascertain how much improved the result compared to the conventional case.

The results show that the average security strength score for the conventional password is 41, while the security strength score for the password generated in the disclosed technique is twice as high as the average 88. Therefore, replacing the password of the conventional type with the password generated in the disclosed technology can provide an advantage that the users do not need to remember the password and can maintain the high reliability of the security of the password.

Although a method and an apparatus for generating a password using a biometric information based trust interval set according to an embodiment of the disclosed technology have been described with reference to the embodiments shown in the drawings in order to facilitate understanding, Those skilled in the art will appreciate that various modifications and equivalent embodiments may be possible. Accordingly, the true scope of protection of the disclosed technology should be determined by the appended claims.

110: Select the password field 120: Video recording
130: Approach to the confidence interval set 140: Site code extraction
150: Password generation 160: Automatic password input
310: camera 320:
330 extracting unit 340 generating unit
350:

Claims (10)

Inputting a predetermined ID into an ID input field provided by a web site using an input means of a user terminal and selecting a password input field for inputting a password;
A step of photographing a user's face of the user terminal by the camera of the user terminal when the password input field is selected;
Extracting biometric information of the user's face included in the image and obtaining an access right to a set of confidence intervals stored in the user terminal;
Extracting a site code of the website from the user terminal;
Generating a password by applying a password re-registration count to the trust interval set and the site code; And
And automatically inputting the generated password into the password input field,
Wherein the generating the password comprises:
Applying the XOR and MOD operations to the confidence interval set and the site code to generate the password,
Wherein the generating the password comprises:
And converting the value to which the XOR and MOD operations are applied into a character according to an ASCII code table. 2. The method of claim 1,
And determining whether the biometric information and the confidence interval set are matched according to a preset reference value. The method of claim 1, wherein the extracting of the site code comprises:
Wherein the user terminal extracts the site code using at least one of a name, an IP, and a domain of the website received according to a transmission protocol of the web site. delete delete A camera mounted on the user terminal and driven by selecting a password input field of the website through the input means of the user terminal to photograph the user's face of the user terminal as an image;
An image processing unit for extracting biometric information from the user's face included in the image and comparing the biometric information with a set of confidence intervals stored in the user terminal;
An extracting unit for extracting a site code of the website from the user terminal;
A generator for generating a password by applying the number of times of password re-registration to the trust interval set and the site code; And
And an input unit for automatically inputting the generated password into the password input field,
Wherein the generation unit comprises:
Applying the XOR and MOD operations to the confidence interval set and the site code to generate the password,
Wherein the generation unit comprises:
And a character processing unit for converting the values to which the XOR and MOD operations are applied into a character according to an ASCII code table. 7. The image processing apparatus according to claim 6,
Based confidence interval set for determining whether the biometric information coincides with the confidence interval set by a predetermined reference value or more. 7. The apparatus of claim 6,
Wherein the user terminal extracts the site code using at least one of a name, an IP, and a domain of the website received according to the transmission protocol of the website. delete delete

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