KR101149047B1 - Method for Providing CAPTCHA - Google Patents

Abstract

When the CAPTCHA problem request is received from a web server, the present invention includes a first capcha type including promotional information using sound, a second capcha type including promotional information using video, and a promotional information using still image. Selecting a providing type from the 3 cap difference types; Selecting a search word from user information received from the web server or service information provided by the web server; Electing a plurality of candidate cap differences corresponding to the selected providing type and including the search words in the promotional information; Selecting a provision cap difference for use in the cap difference problem among the selected candidate cap differences; Selecting a provision problem from candidate questions regarding the promotional information included in the provision cap; Generating the captcha problem by mixing the provided captcha and the provided problem; And providing the correct answer to the provided problem and the captcha problem to the web server so that the response information on the captcha problem and the correct answer to the provided problem can be compared.

According to the present invention, a real person can easily solve the CAPTCHA problem, an automated program can make it difficult to solve the CAPTCHA problem, and by promoting the user to naturally contact the promotional information in the process of solving the CAPTCHA problem Can create.

Web Server, Captcha, Captcha Issues, Promotional Information

Description

How to Provide Captcha {Method for Providing CAPTCHA}

The present invention relates to a method for providing a CAPTCHA to allow a specific user to use a web server for membership registration, survey participation, e-mail address collection, search engine access, and the like.

CAPTCHA stands for Completely Automated Public Turing Test To Tell Computers and Humans Aparts to identify users who have access to a web server to sign up, participate in surveys, collect email addresses, access search engines, etc. Used.

The CAPTCHA provides a CAPTCHA problem to a user client that accesses the WEB server, and allows only the user client that provides a response corresponding to the CAPTCHA problem to use the webserver. The CAPTCHA provides a CAPTCHA problem that is difficult for an automated program to solve, thereby preventing the automated program from using the web server and allowing only a real person to use the web server. The automated program may be a Boat Program or the like.

1 is a diagram illustrating a Captcha problem according to the prior art.

Referring to FIG. 1, the CAPTCHA problem 10 according to the related art is a modification of a predetermined character, which requires a user client accessing the web server to input the same characters displayed in the CAPTCHA problem 10. Format.

Capcha according to the prior art described above has the following problems.

First, when the user who accesses the web server is an automated program, since the CAPTCHA problem 10 is a simple modification of a predetermined character, the automated program may use AI technology such as OCR technology (Optical Character Recognition). Artificial Intelligence can solve this problem. Therefore, the CAPTCHA problem 10 according to the related art has a problem that it is difficult to block an automated program from using a web server.

Secondly, as a solution to the above-described problem, there is a method of providing a CAPTCHA problem 10 in which a considerable deformation is applied to a predetermined character. According to this method, an automated program may make it difficult to use a web server, but since a real person becomes difficult to solve the CAPTCHA problem 10, there is a problem that cannot be a fundamental solution.

Therefore, it is necessary to develop a CAPTCHA that allows a real person to easily use a web server, while blocking an automated program from using a web server.

The present invention has been made to solve the above-described need, an object of the present invention is to provide a method for providing a CAPTCHA that can block the automated program to use a web server, while allowing a real person to easily use a web server. To provide.

In order to achieve the above-mentioned object, the present invention can include the following configuration.

When the CAPTCHA problem request is received from a web server, the CAPTCHA providing method according to the present invention includes a first CAPTCHA type including promotional information using sound, a second CAPTCHA type including promotional information using a video, and a PR using a still image. Selecting a providing type from a third capcha type including information; Selecting a search word from user information received from the web server or service information provided by the web server; Electing a plurality of candidate cap differences corresponding to the selected providing type and including the search words in the promotional information; Selecting a provision cap difference for use in the cap difference problem among the selected candidate cap differences; Selecting a provision problem from candidate questions regarding the promotional information included in the provision cap; Generating the captcha problem by mixing the provided captcha and the provided problem; And providing the web server with the correct answer for the provided problem and the captcha problem so that the response information for the captcha problem and the correct answer for the provided problem can be compared.

In the captcha providing method according to the present invention, the selecting of the providing type may include providing a type from among the first capcha type, the second capcha type, and the third capcha type based on user terminal environment information received from the web server. Can be selected; The selecting of the providing problem may include selecting an providing problem using sound if the selected providing type is the first capcha type, and providing an image using an image if the selected providing type is the second capta type or the third capcha type. Can be selected.

In the captcha providing method according to the present invention, the selecting of the providing type may include selecting the first captcha type as a providing type when the user is visually impaired from the user information received from the web server. If it is determined that the user is deaf from the received user information or that the user terminal cannot output sound from the user terminal environment information received from the web server, the second captcha type or the third captcha type is provided. Can be selected as; The selecting of the providing problem may include selecting a providing problem using a sound if the selected providing type is the first capcha type, and providing an image using the second providing type or the third capcha type. You can choose the problem.

In the captcha providing method according to the present invention, the selecting of the providing type may include selecting the first captcha type or the second captcha type as a supply type when execution time information is received from the web server; The selecting of the provided cap difference may select a candidate cap difference that is executed for a time corresponding to the execution time information among the selected candidate cap differences.

In the captcha providing method according to the present invention, the selecting of the providing type may select the third captcha type as the providing type if it is determined that the communication speed of the user terminal is lower than a reference value from the user terminal environment information received from the web server. And if it is determined that the communication speed of the user terminal is greater than the reference value, the first capcha type or the second capcha type may be selected as a providing type; The selecting of the providing problem may include selecting a providing problem using a sound if the selected providing type is the first capcha type, and providing an image using the second providing type or the third capcha type. You can choose the problem.

According to the present invention, the following effects can be obtained.

The present invention can improve the utilization rate for the web server by allowing a real person to easily solve the CAPTCHA problem, and can improve the security of the web server by making the automated program difficult to solve the CAPTCHA problem.

The present invention allows the user to naturally contact the promotional information in the process of solving the Captcha problem, so that the user can obtain a predetermined information through the promotional information so as not to waste time to solve the Captcha problem, It can create a promotional effect for users using the web server.

The present invention provides the most suitable CAPTCHA problem according to the degree of user terminal environment, user information, or service information provided by the web server, thereby preventing the utilization rate of the web server from being lowered, while providing sufficient time for the user using the web server. Promotional information can be delivered.

Hereinafter, a preferred embodiment of a captcha providing system according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a system for providing a CAPTCHA according to the present invention, FIG. 3 illustrates an embodiment of a user information input window provided to a user terminal by a web server, and FIGS. 4 to 7 illustrate a CAPTCHA problem provided to a web server. Drawing.

Referring to FIG. 2, the CAPTCHA providing system 1 according to the present invention includes a first selector 11, a first selector 12, a second selector 13, a second selector 14, and a first selector 11. And a selector 15, a generator 16, and a DB 17.

The first selector 11 receives a CAPTCHA problem request from a web server 200 connected through a network 100, and includes a first CAPTCHA type including promotion information using sound and promotion information using a video. The serving type is selected from the second cap tea type and the third cap tea type including promotional information using still images. The promotional information is for companies, individuals and organizations, such as public service advertisements, corporate advertisements, event advertisements, and personal advertisements, to inform the world of product, service, ideology, creed, policy, event schedule, and contents.

Even if the first selection unit 11 selects any one of the first capcha type, the second capcha type, and the third capcha type, the captcha providing system 1 includes a captcha problem including the promotional information as described above. Can be provided. Therefore, the CAPTCHA providing system 1 allows the user to contact the promotion information in the process of solving the CAPTCHA problem, thereby allowing the user to obtain predetermined information through the PR information, so that the time for solving the CAPTCHA problem is meaningless. It is possible to prevent the consumption, and to create a promotional effect for the user using the web server 200.

The first selector 11 may select one of the first capcha type, the second capcha type, and the third capcha type as a provision type based on user terminal environment information. The CAPTCHA providing system 1 may receive user terminal environment information from the web server 200.

The user terminal environment information may include a communication speed of the user terminal, a type of the user terminal, a performance specification of the user terminal, whether the user terminal is an environment in which sound can be output, and the like. The web server 200 may obtain user terminal environment information from information input by the user, and may obtain user terminal environment information by using a predetermined program installed in the user terminal. The predetermined program may be Active X Control.

The first selector 11 may select any one of the first cap difference type, the second cap difference type, and the third cap difference type according to a communication speed of a user terminal as a supply type.

If it is determined from the user terminal environment information that the communication speed of the user terminal is less than or equal to the reference value, the first selector 11 may select the third capcha type as a providing type. When the communication speed of the user terminal is less than the reference value, when providing the capcha problem of the first capcha type or the second capcha type, which is relatively large in capacity, the user may spend excessive time in solving the capcha problem. 200) can be given up. In order to prevent this, the first selector 11 selects the third capcha type as a providing type when the communication speed of the user terminal is less than or equal to a reference value, thereby providing a captcha problem of a relatively small third capcha type. Be sure to

When it is determined that the communication speed of the user terminal exceeds the reference value from the user terminal environment information, the first selector 11 may select the first capcha type or the second capcha type as a providing type. Thus, the CAPTCHA providing system 1 may provide a CAPTCHA problem using sound or video, thereby preventing the automated program from solving CAPTCHA problems using AI technology such as OCR technology. In addition, the CAPTCHA providing system 1 may improve the PR effect by providing a CAPTCHA problem using a sound or a video that may leave a relatively strong impression with respect to the PR information.

The first selector 11 may select one of the first cap difference type, the second cap difference type, and the third cap difference type as a supply type according to the type of the user terminal.

When it is determined that the user terminal is a mobile terminal from the user terminal environment information, the first selector 11 may select the third capcha type as a providing type. When the user terminal is a mobile terminal, when the captcha problem of the first or second captcha type is provided, the user may consume excessive time to solve the captcha problem or the captcha problem may not be executed correctly. The use of 200 may be abandoned. To prevent this, when the user terminal is a mobile terminal, the first selector 11 selects the third capcha type as a providing type so that the capcha problem of the third capcha type is provided.

When it is determined that the user terminal is a desktop, a notebook, or the like, from the user terminal environment information, the first selector 11 may select the first capcha type or the second capcha type as a providing type. Thus, the CAPTCHA providing system 1 may provide a CAPTCHA problem using sound or video, thereby preventing the automated program from solving CAPTCHA problems using AI technology such as OCR technology. In addition, the CAPTCHA providing system 1 may improve the PR effect by providing a CAPTCHA problem using a sound or a video that may leave a relatively strong impression with respect to the PR information.

The first selector 11 may select one of the first cap difference type, the second cap difference type, and the third cap difference type as a supply type according to a performance specification of the user terminal. Performance specifications of the user terminal may be RAM capacity, CPU performance, and the like.

If it is confirmed from the user terminal environment information that the performance specification of the user terminal is less than or equal to the reference specification, the first selector 11 may select the third capcha type as a providing type. When it is confirmed that the performance specification of the user terminal exceeds the reference specification from the user terminal environment information, the first selector 11 may select the first capcha type or the second capcha type as a providing type.

Accordingly, the CAPTCHA providing system 1 provides the CAPTCHA problem of the type suitable for the performance specification of the user terminal, and thus, the web server 200 as in the embodiment of providing the CAPTCHA problem of the appropriate type according to the communication speed described above. The use rate can be prevented from being lowered, and the security and promotion effect can be improved.

The first selector 11 may select one of the first capcha type, the second capcha type, and the third capcha type as a supply type according to whether the user terminal is an environment capable of outputting sound. .

If it is determined that the user terminal cannot output sound from the user terminal environment information, the first selector 11 may select the second cap type or the third cap type as a providing type. Accordingly, the CAPTCHA providing system 1 may provide a CAPTCHA problem suitable for the user to recognize, thereby allowing a real person to easily use the web server 200.

As described above, the first selector 11 selects one of the first capcha type, the second capcha type, and the third capcha type as a provision type based on the user terminal environment information. It may be possible to provide a CAPTCHA problem of a type suitable for the environment. Therefore, the CAPTCHA providing system 1 may enable a real person to easily use the web server 200 according to a user terminal environment, and may improve the security of the web server 200 and promote it. The effect can be improved.

The first selector 11 may select one of the first capcha type, the second capcha type, and the third capcha type as a provision type based on user information. The CAPTCHA providing system 1 may receive user information from the web server 200.

The user information may include the user's age, gender, region of residence, occupation, marital status, education, disability, types of disability, hobbies, interests, and the like. The web server 200 may request an input regarding user information and obtain user information from information input by the user. For example, the web server 200 may request an input regarding user information by providing a form as shown in FIG. 3 to a user terminal. The web server 200 may obtain user information from membership registration information.

When it is determined that the age of the user corresponds to an age group corresponding to the children and the adolescents, the first selection unit 11 may select the second capcha type as the providing type. Accordingly, the CAPTCHA providing system 1 can improve the web server 200 utilization rate by providing a CAPTCHA problem using a video that can easily attract the interest of children and adolescents. In this case, the captcha providing system 11 may provide a captcha problem using animation.

The first selector 11 may select one of the first capcha type, the second capcha type, and the third capcha type as a supply type according to a failure.

If it is determined that the user is visually impaired from the user information, the first selector 11 may select the first cap difference type as a providing type. When it is determined that the user is deaf from the user information, the first selector 11 may select the second cap type or the third cap type as a providing type. Accordingly, the CAPTCHA providing system 1 may provide a CAPTCHA problem suitable for the user to recognize, thereby allowing a real person to easily use the web server 200.

In the above description, the first selection unit 11 selects a provision type based on one of user terminal environment information and user information. However, the first selection unit 11 is based on user terminal environment information and user information. You can also choose a delivery type based on that. In this case, the CAPTCHA providing system 1 may receive user terminal environment information and user information from the web server 200.

For example, when it is determined that the communication speed of the user terminal exceeds the reference value from the user terminal environment information, the first selector 11 selects the first capcha type and the second capcha type as candidate types, and then selects the user cap from the user information. If the user is determined to be visually impaired, the first capcha type may be selected as the providing type. If the first selection unit 11 selects the second cap type and the third cap type as candidate types after determining that the user is deaf from user information, the communication speed of the user terminal is determined based on the user terminal environment information. If it is confirmed that the following is the third capcha type can be selected as the providing type.

When the execution time information is received from the web server 200, the first selector 11 may select the first capcha type or the second capcha type as a providing type. The execution time information is a time when the user is expected to be able to endure as much as possible to use the web server 200, may vary depending on the web server 200 requesting the CAPTCHA problem, the web server 200 It may vary depending on the importance of the service information provided to the user. The execution time information may be specified by an operator of the web server 200.

Accordingly, by abandoning the user to use the web server 200 due to excessive time taken to solve the CAPTCHA problem, it is possible to prevent the utilization rate of the web server 200 from being lowered. That is, the CAPTCHA providing system 1 may provide a CAPTCHA problem that can be solved within a time that a user can invest to use the service provided by the web server 200.

Referring to FIG. 2, the first electoral unit 12 selects a search word from user information or service information provided by the web server 200. The CAPTCHA providing system 1 may receive user information or service information from the web server 200.

As described above, the user information may include a user's age, gender, residence, occupation, marital status, education, disability, disability type, hobbies, interests, and the like. Service information may be provided by the web server 200. Information regarding a service provided may include a field of a service provided by the web server 200, a term mainly used in a service provided by the web server 200, and the like.

The first selector 12 may select a search word from a hobby and a field of interest among user information. In this case, the first selector 12 may select an item displayed as a hobby and a field of interest by the user from among items displayed at the bottom of FIG. 3 as a search word.

Referring to FIG. 2, the second elector 13 selects a plurality of candidate cap differences corresponding to the selected offer type and including the search word in the promotional information. The second selector 13 may select a plurality of candidate cap differences corresponding to the selected providing type from among the candidate cap differences stored in the DB 17 and including the search word in the promotional information.

The second selector 13 may select candidate capchas corresponding to the selected providing type, such that a captcha problem suitable for a user is provided based on at least one of user terminal environment information and user information. Accordingly, the captcha providing system 1 can provide a captcha problem that can be easily solved by a real person.

The second elector 13 selects candidate caps including the search word in the promotional information, thereby providing a captcha problem that can attract the user's attention. Therefore, the CAPTCHA providing system 1 may improve the utilization rate of the web server 200 by inducing a user to solve the CAPTCHA problem.

For example, when the search word selected by the first selector 12 from the user information or the service information is "education", the second selector 13 includes the search word "education" in the promotional information. A plurality of candidate cap differences may be elected. In this case, the candidate captures may include a candidate capture consisting of “Inha University homepage still image” as shown in FIG. 4.

When the search word selected by the first electoral unit 12 from the user information or the service information is "sport", the second electoral unit 13 includes the candidate word "sport" which is a search word in the promotional information. You may elect more than one. In this case, the candidate caps may include a candidate cap including “Incheon Asian Games Promotional Still Image” as shown in FIG. 5, and “Incheon Asian Games Promotional Video” as shown in FIG. 6. Candidate cap differences may be included.

Referring to FIG. 2, the second selector 14 selects a provision cap difference to be used for the cap difference problem among the selected candidate cap differences. The candidate candidates selected by the first selector 11 correspond to the provided type, and candidate candidates including search words selected by the first selector 12 in the promotional information. Candidate cap differences selected by the second electoral unit 13.

Accordingly, the CAPTCHA providing system 1 provides a CAPTCHA problem of a type most suitable for a user based on at least one of a user terminal environment or user information, thereby providing a CAPTCHA problem that can be easily solved by a real person. The utilization rate for the server 200 may be improved. In addition, the CAPTCHA providing system 1 may improve a PR effect for a user who solves the CAPTCHA problem by providing a CAPTCHA problem that may attract the user's attention based on at least one of user information or service information.

Here, if the service information provided by the web server 200 is a great help to the user, the user will try to solve the CAPTCHA problem and use the web server 200 even if the CAPTCHA problem takes a considerable time to solve. . However, if the service information provided by the web server 200 is not a great help to the user, the user will give up using the web server 200 without responding to the CAPTCHA problem. That is, the CAPTCHA problem may be solved within a time that a user can invest to use the service information provided by the web server 200.

To this end, the second selector 14 may select the provided cap difference from the candidate cap differences according to the time when the candidate cap differences are executed. The second selector 14 may select a candidate cap difference to be executed for a time corresponding to the execution time information received from the web server 200 as a providing cap difference.

The execution time information may be made by providing execution time information corresponding to a time specified by the operator of the web server 200 to the CAPTCHA providing system 1, and an identification given to the web server 200. number) may be provided by providing the captcha providing system 1. The web server 200 may provide the maximum allowable execution time information to the CAPTCHA providing system 1, in which case the second selector 14 may select the execution time from among the candidate candidates selected. Any one of the candidate capchas that are executed for less than the information period may be selected as the providing capcha.

Therefore, the CAPTCHA providing system 1 gives up using the web server 200 due to the user taking excessive time to solve the CAPTCHA problem, thereby preventing the utilization rate of the web server 200 from being lowered. can do. That is, the CAPTCHA providing system 1 may provide a CAPTCHA problem that can be solved within a time that a user can invest to use the service information provided by the web server 200. In addition, the CAPTCHA providing system 1 may allow the promotional information to be delivered for a sufficient time according to the user who uses the web server 200.

Referring to FIG. 2, the third selector 15 selects a provision problem from candidate questions regarding promotional information included in the provision gap. The candidate problem is to use the promotional information contained in the provided captcha, it may be made in the form of asking the content of the promotional information included in the provided captcha.

Accordingly, the captcha providing system 1 allows the user to solve the captcha problem by using the promotional information included in the provided captcha, so that the user can naturally contact the promotional information in the process of solving the captcha problem. .

Therefore, the CAPTCHA providing system 1 may allow the user to obtain predetermined information through the promotional information so that the CAPTCHA is not inadvertently consumed to solve the CAPTCHA problem, and to the user who uses the web server 200. It can create a public relations effect. In addition, an automated program may make it difficult to solve a CAPTCHA problem using an AI technology such as OCR technology. As a result, the CAPTCHA providing system 1 may allow an actual person to easily use a web server. The program can block the web server.

The third selector 15 selects a problem using sound when the selected providing type is the first capcha type, and uses an image when the selected providing type is the second capta type or the third capcha type. You can choose to offer. Accordingly, the CAPTCHA providing system 1 may provide a problem to be provided according to a user environment, thereby allowing a real person to easily use the web server 200.

Referring to FIG. 2, the generation unit 16 generates the captcha problem by mixing the provided captcha and the provided problem. The generation unit 16 determines a form in which the providing cap difference selected by the second selecting unit 14 and the providing problem selected by the third selecting unit 15 are mixed, and the providing cap difference is determined according to the determined form. The captcha problem can be generated by mixing the provision problem.

When the provision problem using sound is selected from candidate problems, the generation unit 16 generates the captcha problem by mixing the provision problem and the provision cap difference such that the provision problem is executed after the provision cap gap is executed. Can be.

The captcha providing system 1 provides the web server 200 with the correct answer to the providing problem and the captcha problem so that the response information about the captcha problem and the correct answer to the providing problem can be compared.

An embodiment of the CAPTCHA problem provided to the web server 200 will be described with reference to FIGS. 2 to 7 as follows.

Referring to FIGS. 2 and 4, the captcha problem 300 is provided in a form of asking for the contents of the promotional information included in the provided capcha 301 and the provided capcha 301 including the promotional information using a still image. The provisioning problem 302 is created by mixing. The CAPTCHA problem 300 may be provided to the web server 200 through the following process.

First, the first selector 11 selects the third cap difference type as a supply type. The first selector 11 may select the third capcha type as a providing type based on at least one of user terminal environment information, user information, or execution time information.

Next, the first selector 12 selects "education" as a search word. The first selector 12 may select "education" as a search word from user information or service information provided by the web server 200.

Next, the second elector 13 selects a plurality of candidate capchas corresponding to the third capcha type and includes "education" in the promotional information. The second elector 13 may select a plurality of candidate cap differences corresponding to the third cap type and among the candidate cap differences stored in the DB 17 and including "education" in the promotional information.

Next, the second selector 14 selects a provision cap difference for use in the cap difference problem among the selected candidate cap differences. As shown in FIG. 4, the providing cap cha 301 selected by the second selector 14 is an “Inha University homepage still image” including promotional information about education.

Next, the third selector 15 selects a provision problem 302 from candidate questions related to the promotional information included in the provision cap 301. The offer problem 302 selected by the third selector 15 is, as shown in Fig. 4, "What is the name of the homepage organization?" The candidate problem relates to the promotional information included in the selected providing captcha 301. "Where is the homepage organization?", "What is the URL of the homepage organization?" And the like.

Next, the generation unit 16 generates the captcha problem 300 by mixing the provided captcha 301 and the provided problem 302. In the captcha problem 300 generated by the generation unit 16, as illustrated in FIG. 4, the provision problem 302 is located below the provision captcha 301.

Next, the CAPTCHA providing system 1 provides an answer to the providing problem 302 as shown in FIG. 4 so that the response information about the CAPTCHA problem 300 and the correct answer to the providing problem 302 can be compared. The correct answer "Inha University" and the CAPTCHA problem 300 is provided to the web server 200.

Referring to FIGS. 2 and 5, the captcha problem 300 is formed in a form of asking for the contents of the promotional information included in the provided capcha 301 and the provided capcha 301 including the promotional information using a still image. The provisioning problem 302 is created by mixing. The CAPTCHA problem 300 may be provided to the web server 200 through the following process.

First, the first selector 11 selects the third cap difference type as a supply type. The first selector 11 may select the third capcha type as a providing type based on at least one of user terminal environment information, user information, or execution time information.

Next, the first electoral unit 12 selects "sport" as a search word. The first electoral unit 12 may select "sport" as a search word from user information or service information provided by the web server 200.

Next, the second electoral unit 13 selects a plurality of candidate capchas corresponding to the third capcha type and includes "sport" in the promotional information. The second elector 13 may select a plurality of candidate cap differences corresponding to the third cap type and among the candidate cap differences stored in the DB 17 and including "sport" in the promotional information.

Next, the second selector 14 selects a provision cap difference for use in the cap difference problem among the selected candidate cap differences. As shown in FIG. 5, the provided cap cha 301 selected by the second selector 14 is “Incheon Asian Games Promotional Still Image” that includes promotional information about sports.

Next, the third selector 15 selects a provision problem 302 from candidate questions related to the promotional information included in the provision cap 301. The offer problem 302 selected by the third selector 15 is, as shown in FIG. 5, "where is the host city of the poster promotion event?" The candidate problem relates to the promotional information included in the selected offer cap 301, "What country is the host city of the poster promotion event?", "What year is the Incheon Asian Games held?", "Incheon Asia What is the opening day of the competition? " And the like.

Next, the generation unit 16 generates the captcha problem 300 by mixing the provided captcha 301 and the provided problem 302. In the captcha problem 300 generated by the generation unit 16, as illustrated in FIG. 5, the provision problem 302 is located below the provision captcha 301.

Next, the captcha providing system 1 provides a response to the providing problem 302 as shown in FIG. 5 so that the response information about the captcha problem 300 and the correct answer to the providing problem 302 can be compared. The correct answer "Incheon" or "Incheon" and the CAPTCHA problem 300 is provided to the web server 200.

Referring to FIGS. 2 and 6, the captcha problem 300 is provided in the form of asking for the content of the promotional information included in the provided captcha 301 and the provided captcha 301 including promotional information using a video. Problem 302 was created by mixing. The CAPTCHA problem 300 may be provided to the web server 200 through the following process.

First, the first selector 11 selects the second cap difference type as a supply type. The first selector 11 may select the second capcha type as a providing type based on at least one of user terminal environment information, user information, or execution time information.

Next, the first electoral unit 12 selects "sport" as a search word. The first entry 12 may select "sport" as a search word from user information or service information provided by the web server 200.

Next, the second electoral unit 13 selects a plurality of candidate capchas corresponding to the second capcha type and includes "sport" in the promotional information. The second electoral unit 13 may select a plurality of candidate cap differences corresponding to the second cap type and including "sports" in the promotional information among the candidate cap differences stored in the DB 17.

Next, the second selector 14 selects a provision cap difference for use in the cap difference problem among the selected candidate cap differences. As shown in FIG. 6, the provided cap cha 301 selected by the second selector 14 is “Incheon Asian Games Promotional Video” including promotional information about sports.

Next, the third selector 15 selects a provision problem 302 from candidate questions related to the promotional information included in the provision cap 301. The offer problem 302 selected by the third selector 15 is, as shown in FIG. 6, "where is the host city of the poster promotion event?" The candidate problem relates to the promotional information included in the selected offer cap 301, "What country is the host city of the poster promotion event?", "What year is the Incheon Asian Games held?", "Incheon Asia What is the opening day of the competition? " And the like.

Next, the generation unit 16 generates the captcha problem 300 by mixing the provided captcha 301 and the provided problem 302. In the captcha problem 300 generated by the generation unit 16, as illustrated in FIG. 6, the provision problem 302 is located below the provision captcha 301.

Next, the CAPTCHA providing system 1 provides an answer to the providing problem 302 as shown in FIG. 6 so that the response information about the CAPTCHA problem 300 and the correct answer to the providing problem 302 can be compared. The correct answer "Incheon" or "Incheon" and the CAPTCHA problem 300 is provided to the web server 200.

2 and 7, the captcha problem 300 is provided in the form of asking for the contents of the promotional information included in the provided captcha 301 and the provided captcha 301 including the promotional information using sound. Problem 302 was created by mixing. The CAPTCHA problem 300 may be provided to the web server 200 through the following process.

First, the first selector 11 selects the first cap difference type as a supply type. The first selector 11 may select the first capcha type as a providing type based on at least one of user terminal environment information, user information, or execution time information.

Next, the first electoral unit 12 selects "shopping" or "broadcasting / entertainment" as a search word. The first electoral unit 12 may select "shopping" or "broadcasting / entertainment" as a search word from user information or service information provided by the web server 200.

Next, the second elector 13 selects a plurality of candidate cap differences corresponding to the first cap type and include "shopping" or "broadcasting / entertainment" in the promotional information. The second electoral unit 13 selects a plurality of candidate caps corresponding to the first cap type from among the candidate caps stored in the DB 17 and including "shopping" or "broadcasting / entertainment" in the promotional information. can do.

Next, the second selector 14 selects a provision cap difference for use in the cap difference problem among the selected candidate cap differences. Provided by the second selection unit 14, the serving cap 301 is, as shown in Figure 7, "advertisement sound of the product ○" containing promotional information about "shopping" or "broadcast / entertainment" to be. The captcha providing system 1 may provide a sound reproduction program image to the web server 200 as shown in FIG. 7.

Next, the third selector 15 selects a provision problem 302 from candidate questions related to the promotional information included in the provision cap 301. The offer problem 302 selected by the third selector 15 is, as shown in FIG. 7, "What is the name of the product the audio advertises?" The candidate problem relates to the promotional information included in the selected offer cap 301, "What is the manufacturer of the audio advertising product?", "What is the price of the audio product advertising?", "Audio advertising Where is the product sold? " And the like.

Next, the generation unit 16 generates the captcha problem 300 by mixing the provided captcha 301 and the provided problem 302. In the captcha problem 300 generated by the generation unit 16, as shown in FIG. 7, the problem of providing the image using the image 302 is located at the lower side of the captcha 301. The provisioning problem used may be generated by mixing to be executed after the provisioning cap 301 is executed.

Next, the CAPTCHA providing system 1 provides a response to the providing problem 302 as shown in FIG. 7 so that the response information about the CAPTCHA problem 300 and the correct answer to the providing problem 302 can be compared. The correct answer is "the name of the product the audio advertises" and the CAPTCHA problem 300 is provided to the web server 200.

Referring to FIG. 2, the DB 17 may include a candidate capture DB 171, a candidate problem DB 172, and a usage status DB 173.

The candidate cap difference DB 171 stores a plurality of candidate cap differences for use in a CAPTCHA problem. Candidate cap differences may be stored in the candidate cap difference DB 171 by type, and may be classified and stored according to contents of the promotion information included in the candidate cap differences. In the candidate cap difference DB 171, candidate cap differences may be divided into a first cap difference type, a second cap difference type, and a third cap difference type.

The second elector 13 is included in the candidate cap difference DB 171 classified by types and contents of the promotional information, and belongs to the selected type selected by the first selection unit 11 from among the candidate cap differences. A plurality of candidate cap differences including the search word selected by the first electoral unit 12 may be selected.

The candidate cap differences may be stored in the candidate cap differences DB 171 according to execution times. The second selector 14 is a candidate that is executed for a time corresponding to the execution time information received from the web server 200 among the candidate cap differences stored in the candidate cap difference DB 171 for each execution time. Capcha can be selected as the provided capcha. The candidate cap differences may be stored in the candidate cap difference DB 171 by the capacity.

The candidate problem DB 172 stores a plurality of candidate problems for use in the CAPTCHA problem. The candidate problem DB 172 may store correct answer information about each of the candidate questions. The third selector 15 may select a provision problem for use in a CAPTCHA problem from candidate problems stored in the candidate problem DB 172.

In the candidate problem DB 172, the candidate problems may be classified and stored by the promotional information included in the candidate cap, so that the providing problem may be related to the promotional information included in the providing cap. The candidate problem DB 172 may be divided into a candidate problem using sound and a candidate problem using an image. The third selecting unit 15 may select a candidate problem corresponding to the providing type selected by the first selecting unit 11 as the providing problem.

The usage status DB 173 stores the candidate captures and status information on the candidate problems. The usage status DB 173 may store information about the number of times the candidate capchas and the candidate problems have been used for the capcha problem. The second selector 14 and the third selector may select a candidate cap difference and a candidate problem having a relatively low number of times of use as provision cap differences and provision problems.

The usage status DB 173 may store information on the CAPTCHA problems previously provided to the web server 200 for each ID assigned to the web server 200, and previously provided to the web server 200. The information on the number of times the candidate caps and the candidate problems are used in the captcha problem may be stored. The second selector 14 and the third selector may select a candidate cap gap and a candidate problem having a relatively low number of times previously provided to the web server 200 as a provision cap gap and a provision problem. The service status DB 173 may store service information provided by the web server 200 for each ID assigned to the web server 200.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the captcha providing method according to the present invention will be described in detail. The method for providing a captcha according to the present invention may be implemented through the captcha providing system 1 described above.

8 is a flowchart illustrating a method for providing a captcha according to the present invention.

4 to 8, the captcha providing method according to the present invention may include a configuration as follows.

First, when a CAPTCHA problem 300 request is received from a web server, a first CAPTCHA type including promotional information using sound, a second CAPTCHA type including promotional information using a video, and promotional information using a still image are received. The providing type is selected from among the third capcha type (S1).

The step S1 may be performed by selecting any one of the first capcha type, the second capcha type, and the third capcha type as a provision type based on user terminal environment information.

The user terminal environment information may include a communication speed of the user terminal, a type of the user terminal, a performance specification of the user terminal, whether the user terminal is an environment in which sound can be output, and the like. The web server may obtain user terminal environment information from information input by the user, and may obtain user terminal environment information by using a predetermined program installed in the user terminal. The predetermined program may be Active X Control.

The step S1 may be performed by selecting the third capcha type as a providing type when it is determined from the user terminal environment information received from the web server that the communication speed of the user terminal is lower than the reference value. The step S1 may be performed by selecting the first captcha type or the second captcha type as a provision type when it is determined from the user terminal device environment information that the communication speed of the user terminal exceeds a reference value.

Accordingly, the method for providing the CAPTCHA provides a CAPTCHA problem 300 suitable for the communication speed of the user terminal, so that the user consumes excessive time to solve the CAPTCHA problem 300 or the CAPTCHA problem 300 is not executed correctly. This can prevent abandoning the use of the web server. Accordingly, the method for providing the CAPTCHA may improve the utilization rate of the web server, and may create a PR effect by allowing the user to naturally contact the PR information in the process of solving the CAPTCHA problem 300.

The step S1 may be performed by selecting the third capcha type as a providing type when it is determined from the user terminal environment information that the user terminal is a mobile terminal. The step S1 may be performed by selecting the first capcha type or the second capcha type as a supply type when it is confirmed that the user terminal is a desktop, a notebook, or the like from the user terminal environment information. Accordingly, the method for providing the CAPTCHA provides a CAPTCHA problem 300 suitable for a user terminal environment, so that a real person can easily use the web server.

The step S1 may be performed by selecting the third capcha type as a providing type when it is determined from the user terminal environment information that the performance specification of the user terminal is less than or equal to the reference specification. The step S1 may be performed by selecting the first capcha type or the second capcha type as a provision type when it is determined from the user terminal environment information that the performance specification of the user terminal exceeds the reference specification. Accordingly, the method for providing the CAPTCHA provides a CAPTCHA problem 300 suitable for a user terminal environment, so that a real person can easily use the web server.

The step S1 may be performed by selecting the second captcha type or the third captcha type as a provision type when it is determined from the user terminal environment information that the user terminal cannot output sound. Accordingly, the method for providing the CAPTCHA may provide a CAPTCHA problem 300 suitable for the user to recognize, thereby allowing a real person to easily use the web server.

As described above, the step S1 may be performed by selecting any one of the first capcha type, the second capcha type, and the third capcha type as a provision type based on user terminal environment information. Accordingly, it is possible to provide a CAPTCHA problem 300 of a type suitable for a user terminal environment. Accordingly, the method for providing the CAPTCHA may enable a real person to easily use the web server according to a user terminal environment, improve the security of the web server, and improve the publicity effect.

The step S1 may be performed by selecting any one of the first capcha type, the second capcha type, and the third capcha type as a provision type based on user information.

User information may include the user's age, gender, region of residence, occupation, marital status, education, disability, types of disability, hobbies, interests, and the like. The web server may request an input regarding user information and obtain user information from information input by the user. For example, the web server may request an input regarding user information by providing a form as shown in FIG. 3 to a user terminal. The web server may obtain user information from membership registration information.

The step S1 may be performed by selecting the second capcha type as a providing type when it is determined that the age of the user corresponds to an age group corresponding to a child and a teen. Accordingly, the method for providing the CAPTCHA may provide the CAPTCHA problem 300 using a video that may easily attract the interest of children and adolescents, thereby improving the web server utilization rate. In this case, the captcha providing method may provide a captcha problem 300 using animation.

The step (S1) may be made by selecting any one of the first capcha type, the second capcha type, and the third capcha type as a providing type according to a failure.

The step S1 may be performed by selecting the first capcha type as a providing type when the user is determined to be visually impaired from the user information. The step S1 may be performed by selecting the second capcha type or the third capcha type as a providing type when the user is determined to be deaf from user information. Accordingly, the method for providing the CAPTCHA may provide a CAPTCHA problem 300 suitable for the user to recognize, thereby allowing a real person to easily use the web server.

In the above, the step (S1) has been described as selecting the offer type based on any one of the user terminal environment information or the user information, the step (S1) selects the offer type based on the user terminal environment information and the user information. It can also be done by.

For example, in the step S1, when it is determined from the user terminal environment information that the communication speed of the user terminal exceeds the reference value, the user selects the first capcha type and the second capcha type as candidate types, and then the user visualizes the user's time from the user information. If it is confirmed that the disabled can be made by selecting the first capcha type as the providing type. In the step S1, when the user is determined to be deaf from the user information, the second cap and the third cap difference types are selected as candidate types, and then the communication speed of the user terminal is determined to be less than the reference value from the user terminal environment information. If so, it can be made by selecting the third cap tea type as the providing type.

The step S1 may be performed by selecting the first capcha type or the second capcha type as a provision type when execution time information is received from the web server. The execution time information is a time at which the user is expected to be able to endure as much as possible to use the web server, which may vary depending on the web server requesting the CAPTCHA problem 300, and the service information provided by the web server to the user. May vary with importance. The execution time information may be specified by the web server operator.

Accordingly, by abandoning the user to use the web server due to the excessive time taken to solve the CAPTCHA problem 300, the utilization rate for the web server can be prevented from being lowered. That is, the captcha providing method may provide a captcha problem 300 that can be solved within a time that a user can invest to use the service information provided by the web server.

The step S1 may be any one of the first capcha type, the second capcha type, and the third capcha type based on at least one of user terminal environment information, user information, or execution time information received from a web server. It can be made by selecting as the providing type.

Thus, the method for providing the CAPTCHA may provide a CAPTCHA problem 300 according to a user environment so that a real person may easily use the web server. In addition, when the captcha providing method provides the captcha problem 300 using sound or video, an automated program may not solve the captcha problem 300 using AI technology such as OCR technology. That is, the captcha providing method may allow a real person to easily use a web server, while blocking an automated program from using a web server.

Next, a search word is selected from user information received from the web server or service information provided by the web server (S2).

As described above, the user information may include a user's age, gender, region of residence, occupation, marital status, education, disability, disability type, hobbies, interests, etc., and service information is provided by the web server. The information may include a field of a service provided by the web server, a term mainly used in a service provided by the web server, and the like.

The step S2 may be performed by selecting a search word from a hobby and a field of interest among user information. In this case, the step S2 may be performed by selecting an item displayed as a hobby and a field of interest by the user from among items displayed at the bottom of FIG. 3 as a search word.

Next, a plurality of candidate cap differences corresponding to the selected offer type and including the search word in the promotional information are selected (S3).

By electing candidate capchas corresponding to the selected providing type through the step (S3), the captcha providing method allows the user to provide a proper captcha problem 300 based on at least one of user terminal environment information or user information. This may provide a CAPTCHA problem 300 that can be easily solved by a real person.

By electing candidate capchas including the search word in the promotional information through the step S3, the captcha providing method may provide a captcha problem 300 to attract the user's attention, and thus the user Induces to solve the CAPTCHA problem 300 may improve the utilization of the web server.

For example, when the search word selected in step S2 is "education", step S3 may be performed by selecting a plurality of candidate cap differences including the search word "education" in the promotional information. In this case, the candidate captures may include a candidate capture consisting of “Inha University homepage still image” as shown in FIG. 4.

When the search word elected in the step S2 is “sport”, the step S3 may select a plurality of candidate cap differences including the search word “sport” in the promotional information. In this case, the candidate caps may include a candidate cap including “Incheon Asian Games Promotional Still Image” as shown in FIG. 5, and “Incheon Asian Games Promotional Video” as shown in FIG. 6. Candidate cap differences may be included.

Next, a selected cap difference 301 is selected from among the selected candidate cap differences, for use in the cap difference problem 300 (S4).

The serving capcha 301 selected through the step S4 corresponds to the serving type selected in the step S1 and includes candidate search carts including the search word selected by the step S2 in the promotional information. , One of the candidate capchas elected by the step S3.

Accordingly, the method for providing the CAPTCHA provides a CAPTCHA problem 300 that can be easily solved by a real person by providing a CAPTCHA problem 300 of a type most suitable for a user based on at least one of a user terminal environment or user information. It is possible to improve the utilization rate for the web server. In addition, the method for providing the CAPTCHA may provide a CAPTCHA problem 300 that may attract the user's attention based on at least one of the user information or the service information, thereby improving the promotional effect for the user who solves the CAPTCHA problem 300. Can be.

Here, if the service information provided by the web server is of great help to the user, the user will try to solve the CAPTCHA problem 300 and use the web server even if the CAPTCHA problem 300 takes a considerable time to solve. . However, if the service information provided by the web server is not of great help to the user, the user will give up using the web server without responding to the CAPTCHA problem 300. That is, the CAPTCHA problem 300 may be solved within a time that a user can invest to use the service information provided by the web server.

To this end, the step S4 may be performed by selecting a candidate cap difference 301 which is executed for a time corresponding to the execution time information received from the web server among the selected candidate cap differences.

The execution time information is a time specified by the web server operator and may be execution time information that can be allowed in the web server. In this case, the step S4 may be performed by selecting any one of the candidate cap differences that are executed for a time less than the execution time information among the selected candidate cap differences as the providing cap difference 301.

Accordingly, the method for providing the CAPTCHA may be prevented from deteriorating the utilization rate for the webserver by abandoning the user to use the web server due to the excessive time taken to solve the CAPTCHA problem 300. That is, the captcha providing method may provide a captcha problem 300 that can be solved within a time that a user can invest to use the service information provided by the web server. In addition, the captcha providing method may allow the promotional information to be delivered for a sufficient time according to the user using the web server.

Next, a selection problem 302 is selected from candidate questions regarding the promotional information included in the providing cap difference 301 (S5).

The candidate problem is to use the promotional information contained in the provided capcha 301, it may be made in the form of asking the contents of the promotional information included in the provided capcha (301). Accordingly, the method for providing the captcha enables the user to solve the captcha problem 300 by using the promotional information included in the provided captcha 301, so that the user can obtain the promotional information in the process of solving the captcha problem 300. You can make contact naturally.

Accordingly, the method for providing the CAPTCHA may allow the user to obtain predetermined information through the promotional information so that the CAPTCHA may not be used to solve the CAPTCHA problem 300 insignificantly, and the PR effect for the user who uses the web server. Can create. In addition, an automated program may make it difficult to solve the CAPTCHA problem 300 using an AI technology such as OCR technology, and thus, the CAPTCHA providing method may allow an actual person to easily use a web server. The program can block the web server.

In step S5, if the selected providing type is the first capcha type, a problem of using sound is selected, and if the selected providing type is the second capta type or the third capcha type, an image is provided. Problem 302 may be selected. Accordingly, the CAPTCHA providing method may provide a provision problem 302 according to a user environment, so that a real person may easily use the web server.

Next, the capping problem 302 is mixed with the supply cap difference 301 to generate the cap difference problem 300 (S6).

The step S6 determines the form in which the selected serving cap 301 and the selected serving problem 302 are mixed through the step S4 and the serving cap difference 302 according to the determined form. 301 and the provision problem 302 can be made by creating the captcha problem 300.

In the step S6, when the provision problem 302 using sound is selected from candidate problems, the provision problem 302 and the provision problem 302 are executed after the provision cap 301 is executed. This can be done by mixing the provided capcha 301 to create the capcha problem 300.

Next, the correct answer to the provision problem 302 and the captcha problem 300 are provided to the web server so that the response information about the captcha problem 300 and the correct answer to the provision problem 302 can be compared. (S7).

The step S7 may be performed by providing the web server with the correct answer to the CAPTCHA problem 300 and the provision problem 302 generated through the steps S1 to S6 as described above. The step S7 may be achieved by providing the CAPTCHA problem 300 as shown in FIGS. 4 to 7 to the web server.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and alterations are possible within the scope without departing from the technical spirit of the present invention. It will be apparent to those who have knowledge.

1 illustrates a Captcha problem according to the prior art.

2 is a block diagram of a system for providing a CAPTCHA according to the present invention;

3 is a diagram illustrating an embodiment of a user information input window provided to a user terminal by a web server;

4 to 7 illustrate the CAPTCHA problem provided to a web server.

8 is a flowchart illustrating a method for providing a cap cha according to the present invention.

Claims (5)

As a captcha providing method by a captcha providing system, When a CAPTCHA problem request is received from a web server, a first capcha type including promotional information using sound, a second capcha type including promotional information using video, and a third capcha type including promotional information using still images Selecting a providing type from among; Selecting a search word from user information received from the web server or service information provided by the web server; Electing a plurality of candidate cap differences corresponding to the selected providing type and including the search words in the promotional information; Selecting a candidate cap difference that is executable within a time corresponding to execution time information received from the web server among the selected candidate cap differences as a provision cap difference for use in the cap difference problem; Selecting a provision problem from candidate questions regarding the promotional information included in the provision cap, and selecting the provision problem using sound when the selected provision type is the first cap difference type, and wherein the selected provision type is the second cap difference Selecting a providing problem using an image if the type or the third capcha type; Generating the captcha problem by mixing the provided captcha and the provided problem; And Providing the correct answer to the provided problem and the captcha problem to the web server so that the response information on the captcha problem and the correct answer to the provided problem can be compared. The method of claim 1, The selecting of the providing type may include providing a capping type from the first capcha type, the second capcha type, and the third capcha type based on user terminal environment information received from the web server. Way. The method of claim 1, The selecting of the providing type may include selecting the first capcha type as a providing type when the user is visually impaired from the user information received from the web server, and the user being deaf from the user information received from the web server. When it is confirmed that the user terminal environment from which the user terminal can not output sound from the user terminal environment information received from the web server provides a captcha, characterized in that for selecting the second or third capcha type as the providing type Way. The method of claim 1, The selecting of the providing type may include selecting the first capcha type or the second capcha type as a supply type when execution time information is received from the web server. The method of claim 1, In the selecting of the providing type, when it is determined that the communication speed of the user terminal is less than the reference value from the user terminal environment information received from the web server, the third capcha type is selected as the providing type, and the communication speed of the user terminal exceeds the reference value. If it is confirmed that the first capcha type or the second capcha type to provide a capcha, characterized in that for selecting the serving type.

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