JP2009069877A - Information processor, input information control method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent writing of information of a link into a vicious site, in a Web site or the like allowing writing of information from a user terminal. <P>SOLUTION: This information processor has: a link information extraction means for extracting link information from input information; a link information storage means for storing a plurality of pieces of predetermined link information; a link information comparison means for comparing input link information that is the link information extracted by the link information extraction means and the plurality of pieces of the predetermined link information stored in the link information storage means; a condition determination means for determining whether the input link information accords with a predetermined condition or not by use of a comparison result by the comparison means; and an output means for outputting information showing that reception of the input information is not permitted when it is decided that the input link information accords with the predetermined condition by the condition decision means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for preventing access to a Web site that may have a problem by preventing specific link information from being written in a Web site that discloses information written from a user terminal. .

  Currently, various services are provided through websites on the Internet, and many dangers are pointed out regarding access to websites. For example, it has been pointed out that there are dangers such as infection by a virus by accessing a specific Web site, the installation of spyware to steal personal computer information, or phishing damage. There are also many Web sites containing content harmful to children.

  In view of such dangers, filtering services that restrict access to harmful websites have become widespread. Generally, in such a filtering service, a gateway is provided between the Internet and a user terminal, and the gateway checks a URL (Uniform Resource Locater) that is link information included in an access request from the user terminal, and the URL Is matched with a predetermined condition, the access request is regarded as an access request to a harmful site, and access is blocked (see Non-Patent Document 1, for example).

In addition, there is a service that does not block access but attaches a safety evaluation result to each list of Web sites extracted by a user searching a site. This service allows users to avoid access to sites with low safety ratings. A Web site where the above-described problem may occur is referred to as a malignant site. In this specification, a Web page refers to an individual page displayed on a user terminal, and a Web site refers to an entire series of Web pages provided by a service provider or an individual.
[Search September 5, 2007], Internet <http://www.ocn.ne.jp/business/security/webgw/spec.html>

  At present, services such as electronic bulletin boards, blogs, and SNS (Social Network Service), in which general users who use the Internet themselves write information and make it available to a specific user or an unspecified number of Internet viewers, are widely used. .

  In many cases, information written on a Web page related to such a service includes a URL that is link information to another site. Accordingly, when a malicious person writes link information to a malignant site on a Web page, there is a risk that a user who browses the writing will be guided to the malignant site by clicking the link. In addition, there is a problem in that a program is used to automatically write link information to a malignant site on the Web site. Furthermore, an act called comment spam that indiscriminately inputs link information to an advertisement site unrelated to the main text in a comment field of a blog or the like is also a problem.

  In such a situation, users who are in an environment that can use the filtering service described in the above prior art are likely not to access the malignant site, but such a filtering service is used. Many users who are not in an environment that can do so are at risk of being guided to malignant sites by using services such as blogs and SNS.

  In addition, in general services such as blogs and SNSs, individual users can create their own websites by accessing the service provider's website. Therefore, there is a demand for preventing their own service from becoming a stepping stone for the above-mentioned fraudulent acts.

  The present invention has been made in view of the above points, and provides a technique for preventing the writing of link information for accessing a malignant site in a Web site or the like where information can be written from a user terminal. Objective.

  The above-described problem is an information processing apparatus having means for storing information input from the outside in a storage means, reading out the information from the storage means and outputting the information to the outside, and is information input from the outside Link information extracting means for extracting link information from input information, link information storing means for storing a plurality of predetermined link information, input link information which is link information extracted by the link information extracting means, and the link Whether the input link information meets a predetermined condition using a link information comparison unit that compares the plurality of predetermined link information stored in the information storage unit and a comparison result by the comparison unit And when the input link information is determined to match the predetermined condition by the condition determining means and the condition determining means, the input information Without storing in the storage unit, it can be solved by an information processing apparatus, characterized in that reception of the input information and output means for outputting information indicating that it is not allowed.

  The present invention also relates to an information processing apparatus comprising means for storing information input from the outside in a storage means, reading the information from the storage means and outputting the information to the outside, and the information input from the outside Link information extraction means for extracting link information from certain input information, and input link information that is link information extracted by the link information extraction means is transmitted to a link information determination apparatus connected to the information processing apparatus via a network. A transmission means, a reception means for receiving a comparison result between a plurality of predetermined link information stored in the link information determination apparatus and the input link information from the link information determination apparatus, and received from the link information determination apparatus Condition determination means for determining whether or not the input link information matches a predetermined condition using a comparison result; and the condition determination means Accordingly, when it is determined that the input link information matches the predetermined condition, the output indicating that the input information is not permitted is output without storing the input information in the storage unit And an information processing apparatus characterized by comprising the means.

  In the information processing apparatus, the comparison result includes information indicating whether or not link information that completely matches or partially matches the input link information exists in the plurality of predetermined link information, and is completely matched or partially When the matching link information exists in the plurality of predetermined link information, the comparison result further includes information indicating the attribute of the link information, and the condition determining means It can be determined whether the information and the information indicating the attribute match a predetermined condition.

  The information processing apparatus may further include authentication means for performing user authentication. The authentication means receives a determination result by the condition determination means, and the determination result indicates that the input link information is predetermined by the input link information. If the determination result indicates that the condition matches, the subsequent access to the information processing apparatus from the user corresponding to the determination result may be restricted.

  The information processing apparatus includes means for providing a Web page to a user terminal connected to the information processing apparatus via a network, and the input information is input from the user terminal via the Web page. It is good also as information.

  The present invention can also be configured as a method executed by the information processing apparatus, or as a program that causes a computer to function as each unit of the information processing apparatus.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to prevent the writing of the link information for accessing a malignant site in the Web site etc. which can write information from a user terminal.

  Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment>
(System configuration)
First, a first embodiment of the present invention will be described. FIG. 1 is a configuration diagram of a system according to the first embodiment of the present invention. This system has a user terminal 1 and a Web site providing apparatus 2 that are connected via the Internet.

  The user terminal 1 is a general computer equipped with a browser program capable of browsing each Web page on a Web site. The website providing apparatus 2 is a computer including a web server program. In this embodiment, each user constructs his / her own website, writes information, and other users view the written information. It is assumed that it has a configuration that provides a service that enables it to be performed. For example, the Web site providing apparatus 2 may be configured to provide a blog service that is currently widely used.

  FIG. 1 shows a configuration centering on functions related to the present invention in the Web site providing apparatus 2. As shown in FIG. 1, the Web site providing apparatus 2 includes a user interface unit 3, a malicious link input control unit 4, and a service control unit 5.

  The user interface unit 3 receives the information transmitted from the user terminal 1 and inputs the information into the website providing apparatus 2 and accepts access from the user terminal 1 or another user terminal. It is a functional unit that outputs information to one or another user terminal. The user interface unit 3 receives a Web page providing unit 31 that provides a Web page to the user terminal 1 and an input unit that receives information input to the user terminal 1 via the Web page and inputs the information to the inside of the Web site providing apparatus 2 32 and an output unit 33 that outputs information via a Web page.

  Information input from the user terminal 1 to the website providing apparatus 2 includes information written by the user, information automatically transmitted by a program executed on the user terminal 1, and the like.

  In the Web site providing apparatus 2 of the present embodiment, each user constructs a Web site. Each Web page of each Web site is identified by a URL, and the user terminal 1 accesses a Web page of a personal Web site. When doing so, a URL corresponding to the URL is designated, and the Web page providing unit 31 provides the user terminal 1 with a Web page corresponding to the URL.

  The malicious link input control unit 4 sends the link information (URL in this embodiment) included in the information input from the input unit 32 and the preset condition to the input information database 52 of the input information including the link information. It is a function part which determines whether to store. As shown in FIG. 1, the malignant link input control unit 4 includes an input monitoring unit 41, a URL inquiry unit 42, a URL determination unit 43, a malignant site database 44, a determination condition management table 45, and a determination condition subtable 46. The operation of each unit will be described in detail in the description of the operation of the website providing apparatus 2.

  The service control unit 5 is a functional unit that controls a service provided by the website providing apparatus 2 such as writing of information by a user and disclosure of information to other users. For example, the website providing apparatus 2 provides a blog service. If it is provided, control for providing the blog service is performed, and functions related to the present invention will be described below.

  As shown in FIG. 1, the service control unit 5 includes an input / output control unit 51 and an input information database 52. The input / output control unit 51 receives input information that is input from the input unit 32 and is determined to have no problem in the malignant link input control unit 4, and stores the input information in the input information database. Further, in response to a request from the user terminal 1, information is acquired from the input information database 52 and sent to the output unit 33. The input information database 52 is storage means for storing information written by the user in association with identification information of the user's website.

  The Web site providing apparatus 2 can be realized, for example, by causing a computer to execute a program for causing the computer to realize the function of each functional unit. FIG. 2 shows an example of the configuration of a computer 60 for realizing the website providing apparatus. As shown in FIG. 2, the computer 60 includes a CPU 61, a memory 62, a communication device 63, an input / output device 64, a storage device 65 such as a hard disk drive, and a recording medium reading device 66 such as a CD-ROM.

  The program for performing the processing described in this embodiment is read from a recording medium such as a CD-ROM by the recording medium reading device 66 and installed in the computer 60. The program may be downloaded from a server on the network. In the example shown in FIG. 2, the data of various databases and tables shown in FIG. 1 are stored in the storage device 65.

(Operation of Web site providing apparatus 2)
Next, the operation of the website providing apparatus 2 having the configuration shown in FIG. 1 will be described along the flowchart shown in FIG.

  Information is input to the user terminal 1 via a Web page by a user or a program, and the input information is transmitted to the Web site providing apparatus 2 via the Internet and received (Step 1).

  The input unit 32 receives the information transmitted from the user terminal 1 and inputs the information to the malignant link input control unit 4 (step 2). The input unit 32 includes, as information to be input to the malignant link input control unit 4, identification information of the Web page on which the information is input (referred to as “HP-ID” in the meaning of homepage ID). Shall be attached. Further, this HP-ID may be associated with each individual web page, or may be associated with a website constructed by a specific user. In the latter case, the same HP-ID is assigned to Web pages included in the same Web site.

  The input monitoring unit 41 that has received the input information recognizes the URL, which is link information, from the input information, extracts it (step 3), and passes it to the URL inquiry unit 42 along with the input information. Do. As an example of processing for recognizing a URL, from input information to a character string starting with http: // or https: // to before a character that cannot be used as a URL such as a space or a quotation mark Is extracted as one URL.

  In step 3, when the input monitoring unit 41 cannot extract the URL from the input information, the input monitoring unit 41 passes the input information to the input / output control unit 51 (step 4). The operation of passing the input information to the input / output control unit 51 is a normal operation when information written by a user in a service such as a blog provided by the website providing apparatus 2 is stored in the input information database 52. is there. If information is not stored in the input information database 52, the information cannot be accessed from the outside even if the information is stored in other storage means such as a buffer memory. It cannot be published via a page.

  When the URL can be extracted in step 3, the URL inquiry unit 42 that has received the input information and the URL from the input monitoring unit 41 passes the URL to the URL determination unit 43. The URL determination unit 43 that receives the URL from the URL inquiry unit 42 performs URL determination processing by comparing the URL with the URL stored in the malicious site database 44 (step 5).

  FIG. 4 shows an example of data stored in the malicious site database 44. As shown in FIG. 4, in the malicious site database 44, URLs of malicious sites (character strings after http: // or https: //) and attributes indicating how the URLs are malicious are registered. ing. For example, a website indicated by xx.yy.zz / abc, which is a URL with an ID of 001, has a risk of virus and spyware.

  The URL determination unit 43 performs the determination by comparing the URL to be determined with the URL stored in the malignant site database 44. In the present embodiment, the URL to be determined is stored in the malignant site database. In addition to the case where the stored URL completely matches, the determination result to that effect is also output when it partially matches.

  For example, when the determination target URL completely includes dd.ee/fg/hij, which is one of the URLs stored in the malicious site database 44, a determination result indicating that it is a complete match is output. If the URL to be determined is dd.ee/xxx, only the dd.ee part in the above dd.ee/fg/hij matches, so a determination result indicating that it is a partial match is output. .

  It should be noted that it is possible to appropriately set in what case it is determined that partial matching is achieved. For example, if at least the leftmost character string matches in a URL delimited by “.” And the character strings are arranged side by side, it is determined to be a partial match if it is not an exact match. Further, even when only the higher domain part matches, it may be determined that the part matches. By incorporating partial matching as a condition, it is possible to widely eliminate the input of dangerous URLs, but there is a possibility that even non-malignant URLs may be excluded. Alternatively, it can be set flexibly according to the policy of the user who is the founder of each Web site.

  In the present embodiment, the URL determination unit 43 outputs the determination result as a bit string such as “000010” and passes it to the URL inquiry unit 42 (step 6). By performing such output, subsequent processing can be easily performed.

  In the example of the bit string, the first 1 bit indicates whether or not the URL for partial match or complete match exists in the malicious site database. The second bit indicates whether it is a partial match or a complete match, and 0 is set for a partial match and 1 is set for a complete match. The remaining bits indicate the attribute of the matched URL in the case of partial match or complete match. Each attribute is associated with a bit position, and the corresponding attribute is 1 and the non-applicable attribute is 0. For example, there are four attributes, and 0100 can be expressed when it corresponds to the second attribute.

  In the example of FIG. 4, when the URL determination unit 43 outputs “000010” as the determination result, a determination is made that a URL that partially matches the determination target URL exists in the malicious site database 44 and the attribute is “phishing”. You can see the result.

  The URL inquiry unit 42 stores the input information including the determination target URL in the input information database 52 based on the determination result received from the URL determination unit 43, the determination condition management table 45, and the determination condition sub-table 46 as necessary. Whether to permit or not is determined (step 7).

  FIG. 5 shows an example of data stored in the determination condition management table 45. As shown in FIG. 5, the degree of coincidence, the designated attribute, and the determination condition are registered for each HP-ID. It is also possible to set two or more conditions for each HP-ID. In this case, each condition is identified by the SUB-ID. Then, in the determination condition sub-table 46 shown in FIG. 6, determination conditions using each condition specified by the SUB-ID can be set.

  For example, in FIG. 5, the condition that the SUB-ID corresponding to the Web page whose HP-ID is 1 is SUB-ID 1 is “complete match” and the attribute is “virus” or “spyware”. In this case, if only this condition is used, the URL included in the information input from the Web page whose HP-ID is 1 completely matches a URL in the malicious site database, and the attribute of the URL is “ In the case of “virus” or “spyware”, storage of the information in the input information database 52 is not permitted.

  The condition that the SUB-ID corresponding to the Web page is 2 is that the degree of matching is “complete match”, the attribute is “phishing”, and “advertisement site”. As shown in FIG. 6, a determination condition sub-table corresponding to HP-ID 1 is set, and the condition is that either a SUB-ID 1 condition or a SUB-ID 2 condition is satisfied. It is. That is, storage of information input from a Web page with an HP-ID of 1 is not permitted if either the SUB-ID 1 condition or the SUB-ID 2 condition is satisfied.

  In the example of FIG. 5, for the Web page whose HP-ID is 2, the degree of match is “partial match” and the attribute is “virus”, “spyware”, or “phishing”. . When the above-described determination result 000010 is a result of information input from a Web page whose HP-ID is 2, it is determined that the condition is satisfied and storage is not permitted.

  In addition to the attributes shown in FIGS. 4 and 5, URL attributes used as determination conditions include an auction site, a net trading site, a gambling site, and an adult site. The conditions as shown in FIG. 5 and FIG. 6 are, for example, one or more users who are the founders of individual websites for a plurality of attributes set by the operator of the website providing apparatus 2. Can be set by selecting AND and OR. In addition, it is possible that only the operator of the Web site providing apparatus 2 can set the determination conditions without setting the determination conditions for the individual website owners. Alternatively, the operator of the website providing apparatus 2 may set a minimum condition, and each website operator may set the condition within a predetermined range.

  When it is determined that storage of input information including the URL to be determined is not permitted (rejection in step 7), the URL inquiry unit 42 passes an input rejection message or the like to the output unit 33 (step 8). In this case, the input information is not stored or output in the input information database 52, and the above-described input rejection message is displayed on the user terminal 1 to which the information is input from the Web page, and the user writes the URL Know that writing was not possible due to a problem with

  If it is not determined that storage of input information including the URL to be determined is not permitted (permitted in step 7), the URL inquiry unit 42 passes the input information to the input / output control unit 51 (step 9).

  The input / output control unit 51 that has received the input information in step 4 or step 9 stores or stores the input information in the input information database 52 that is defined as a normal operation of a website service such as a blog provided by the website providing apparatus 2. Update processing is performed (step 10), and output information is passed to the output unit 33 (step 11). The output information is information indicating that the input information has been normally written in the input information database 52, for example. This output information is displayed on the Web page in the user terminal 1, and the user recognizes that the written information has been normally received. Thereafter, based on a request from the user terminal 1 or other user terminal, the information stored in the input information database 52 is read out by the input / output control unit 51, and the user terminal 1 or other information is output via the output unit 33. Appropriately displayed on the user terminal.

  By using the Web site providing apparatus 2 as described above, it becomes possible to prevent writing of link information for accessing a malignant site in a Web site or the like where information can be written from the user terminal. As a result, it is possible to prevent the web site from being guided to a malignant site, and to prevent the user from being damaged by virus infection or phishing. Accordingly, the user can safely browse a website on which information can be written, and can prevent the website from becoming an unauthorized step of guiding to a malignant site.

  Also, annoying acts such as comment spam can be prevented. As a result, there is an effect that an unnecessary data written due to annoying acts is not accumulated in the website providing apparatus for the operator of the website service, and the appearance of the website is improved for the user who opened the website. There is an effect that there is no loss.

  In addition, since flexible condition setting is possible, it is possible to customize the conditions by the website creator under the minimum security policy set by the website service operator. In addition, since flexible condition setting is possible, for example, even if the URL to a website is not preferable for a user browsing the website, the operator of the website service or the founder of the website If the attribute is highly relevant to the content of its own Web site, a link can be permitted.

<Second Embodiment>
Next, a second embodiment of the present invention will be described. FIG. 7 is a system configuration diagram according to the second embodiment of the present invention. As shown in FIG. 7, in the second embodiment, the malignant site database 44 and the URL determination unit 43 in the first embodiment are added to the malignant link determination device 8, which is a separate device from the Web site providing device 7. The web site providing device 7 and the malicious link determination device 8 are connected via the Internet.

  The contents of the information stored in the malicious site database 44 and the overall processing operation are the same as those in the first embodiment, but in the second embodiment, between the URL inquiry unit 42 and the URL determination unit 43. Data is transmitted and received via the Internet. That is, the Web site providing apparatus 7 includes means for transmitting link information to the malignant link determination apparatus 8 and means for receiving a determination result from the malignant link determination apparatus 8.

  In the second embodiment, since it is not necessary to provide the malignant site database 44 and the URL determination unit 43 in each Web site providing device, the processing in each Web site providing device is compared with the first embodiment. There is an advantage that the load, the amount of stored data, the trouble of setting data in the malicious site database 44, and the like can be reduced.

<Third Embodiment>
Next, a third embodiment will be described. FIG. 8 shows a system configuration diagram according to the third embodiment. Although FIG. 8 is based on the configuration of the first embodiment, the same configuration can be used in the second embodiment.

  As shown in FIG. 8, the website providing apparatus 9 in the third embodiment further includes an authentication unit 91 and a user information database 92, as compared with the website providing apparatus 2 in the first embodiment. Yes. The authentication unit 91 causes the web page providing unit 31 to provide a web page for authentication to the user terminal 1 when the web site providing apparatus 9 is accessed from the user terminal 1, and the user information input via the web page (ID and password) are received. And the authentication part 91 performs user authentication by collating user information (including HP-ID other than ID, a password, etc.) registered beforehand in the user information database 92, and input user information. If the user authentication is successful, a web page for the user is provided.

  Further, the authentication unit 91 receives the result of permission / refusal determination in the URL inquiry unit 42 together with the HP-ID, and if the determination result does not permit input information, the authentication unit 91 then sends the information to the Web site providing apparatus 9 for the user. Restrict access. As the access restriction, for example, when the provision of a web page on a website opened by the user is stopped, or when the user accesses and performs user authentication next, the input user information is the user information database. Even if it corresponds to the user information in 92, the authentication may not be successful and access may be denied. In this case, for example, access to a legitimate user who has undergone a predetermined service application procedure can be permitted by reporting from the user.

  By performing such control, for example, it is possible to prevent a third party who has not performed the service application procedure from illegally acquiring another person's ID and password and writing a malicious link.

<Fourth embodiment>
Although the embodiments described so far have prevented the writing of malicious link information to Web pages, the application field of the present invention is not limited to this. For example, writing of information including link information is performed. Thus, the present invention is applicable to a technique that stores information in a file, opens the file, browses the written information, and can connect to a website from link information included in the information.

  More specifically, when writing information to a file using an editor such as word processing software on a personal computer, including the URL in the information, opening the file in which the information is written, and clicking the URL Making it possible to connect to the Web site of the URL is a general technique, and the present invention can be applied to a configuration in which information is written on such a computer. A configuration example of the information input / output device 10 in that case is shown in FIG.

  Also in this configuration, information is input / output via the user interface unit 11. The user interface unit 11 includes a function for displaying information such as a display device and a function for inputting information such as a keyboard.

  Further, the input / output control unit 51 performs writing to the file storage unit 12 and output from the file storage unit 12. For example, as a normal operation, information written via the user interface unit 11 is stored as a file in the file storage unit 12 by the input / output control unit 51 when “save” is designated in word processing software or the like.

  The functions and overall processing contents of the malicious link input control unit 4 are the same as those in the first embodiment. If the malicious information input control unit 4 refuses to store the input information in the file storage unit 12, it stores it. A message to that effect is displayed via the user interface unit 11 without performing the process. If the message is not rejected, the input information is stored in the file storage unit 12 in the same manner as the operation of a normal word processor software.

  The present invention is not limited to the above-described embodiment, and various modifications and applications can be made within the scope of the claims.

It is a system configuration figure in a 1st embodiment of the present invention. It is a figure which shows an example of a structure of the computer for implement | achieving a website provision apparatus. It is a flowchart which shows operation | movement of the system in the 1st Embodiment of this invention. It is a figure which shows the example of the data stored in malignant site DB. It is a figure which shows the example of the data stored in a judgment condition management table. It is a figure which shows the example of the data stored in the determination condition subtable. It is a system block diagram in the 2nd Embodiment of this invention. It is a system block diagram in the 3rd Embodiment of this invention. It is a block diagram of the information input / output device in the 4th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 User terminal 2, 7, 9 Website provision apparatus 10 Information input / output apparatus 3, 11 User interface part 4 Malignant link input control part 5 Service control part 8 Malignant link determination apparatus 60 Computer

Claims (9)

An information processing apparatus comprising means for storing information input from the outside in a storage means, reading the information from the storage means and outputting the information to the outside,
Link information extraction means for extracting link information from input information that is information input from the outside;
Link information storage means for storing a plurality of predetermined link information;
Link information comparing means for comparing input link information, which is link information extracted by the link information extracting means, and the plurality of predetermined link information stored in the link information storing means;
Condition determination means for determining whether or not the input link information matches a predetermined condition using a comparison result by the comparison means;
Information indicating that acceptance of the input information is not permitted without storing the input information in the storage means when the condition determination means determines that the input link information matches the predetermined condition. An information processing apparatus comprising: output means for outputting An information processing apparatus comprising means for storing information input from the outside in a storage means, reading the information from the storage means and outputting the information to the outside,
Link information extraction means for extracting link information from input information that is information input from the outside;
Transmission means for transmitting input link information, which is link information extracted by the link information extraction means, to a link information determination apparatus connected to the information processing apparatus via a network;
Receiving means for receiving a comparison result between a plurality of predetermined link information stored in the link information determination device and the input link information from the link information determination device;
Condition determination means for determining whether or not the input link information matches a predetermined condition using the comparison result received from the link information determination device;
Information indicating that acceptance of the input information is not permitted without storing the input information in the storage means when the condition determination means determines that the input link information matches the predetermined condition. Output means for outputting
An information processing apparatus comprising: The comparison result includes information on whether or not link information that completely or partially matches the input link information exists in the predetermined plurality of link information, and the link information that completely or partially matches When present in a plurality of predetermined link information, the comparison result further includes information indicating the attribute of the link information,
3. The information processing according to claim 1, wherein the condition determination unit determines whether or not complete match or partial match information and information indicating the attribute match a predetermined condition. 4. apparatus. The information processing apparatus further includes authentication means for performing user authentication,
The authentication unit receives a determination result by the condition determination unit, and when the determination result is a determination result that the input link information matches the predetermined condition, the user corresponding to the determination result The information processing apparatus according to any one of claims 1 to 3, wherein subsequent access to the information processing apparatus is restricted.   The information processing apparatus includes means for providing a Web page to a user terminal connected to the information processing apparatus via a network, and the input information is information input from the user terminal via the Web page The information processing apparatus according to claim 1, wherein the information processing apparatus is an information processing apparatus. It is an input information control method executed by an information processing apparatus that includes information input from the outside in a storage unit, reads the information from the storage unit, and outputs the information to the outside.
A link information extraction step for extracting link information from input information which is information input from the outside;
A link information comparison step for comparing a plurality of pieces of link information stored in a predetermined link information storage unit included in the information processing apparatus and input link information which is link information extracted by the link information extraction unit;
A condition determination step for determining whether or not the input link information matches a predetermined condition using the comparison result obtained in the link information comparison step;
Information indicating that the input information is not allowed to be accepted without storing the input information in the storage means when it is determined in the condition determining step that the input link information matches the predetermined condition. An input information control method comprising: an output step for outputting. It is an input information control method executed by an information processing apparatus that includes information input from the outside in a storage unit, reads the information from the storage unit, and outputs the information to the outside.
A link information extraction step for extracting link information from input information which is information input from the outside;
A transmission step of transmitting input link information, which is link information extracted in the link information extraction step, to a link information determination device connected to the information processing device by a network;
A receiving step of receiving a comparison result between a plurality of predetermined link information stored in the link information determination device and the input link information from the link information determination device;
A condition determination step of determining whether or not the input link information matches a predetermined condition using the comparison result received from the link information determination device;
Information indicating that the input information is not allowed to be accepted without storing the input information in the storage means when it is determined in the condition determining step that the input link information matches the predetermined condition. An input information control method comprising: an output step for outputting. A computer comprising: storage means for storing externally input information; reading the information from the storage means; and outputting the information to the outside; and a link information storage means for storing a plurality of predetermined link information.
Link information extraction means for extracting link information from input information that is information input from the outside,
Link information comparison means for comparing input link information, which is link information extracted by the link information extraction means, and the plurality of predetermined link information stored in the link information storage means;
Condition determination means for determining whether or not the input link information matches a predetermined condition using a comparison result by the comparison means;
Information indicating that acceptance of the input information is not permitted without storing the input information in the storage means when the condition determination means determines that the input link information matches the predetermined condition. A program that functions as an output means for outputting. A computer having means for storing information input from the outside in the storage means, reading out the information from the storage means, and outputting the information to the outside,
Link information extraction means for extracting link information from input information that is information input from the outside,
Transmission means for transmitting input link information, which is link information extracted by the link information extraction means, to a link information determination apparatus connected to the computer via a network;
Receiving means for receiving a comparison result between a plurality of predetermined link information stored in the link information determination device and the input link information from the link information determination device;
Condition determination means for determining whether or not the input link information matches a predetermined condition using the comparison result received from the link information determination device;
Information indicating that acceptance of the input information is not permitted without storing the input information in the storage means when the condition determination means determines that the input link information matches the predetermined condition. Output means to output
Program to function as.

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