JP4718867B2 - Specific user identification program, specific user identification method, and specific user identification device - Google Patents

Description

  The present invention relates to a technique for identifying a specific user, and in particular, a specific user identification program for identifying whether or not the user is a specific user from a browsing history of Web pages on a network, a specific user The present invention relates to an identification method and a specific user identification device.

  For example, the present invention relates to a method for identifying a specific user in a case where a plurality of users share a user ID such as the same user account ID, and a technique for preventing display of harmful sites. It is possible to apply to. It is possible to display a harmful site only when a user accessing a website on the network is identified as a user who can browse a harmful site, and the user can browse the harmful site. can do.

  There is a technique for preventing access to a harmful site such as an adult site or a site that is criminalized (see, for example, Patent Document 1). Japanese Patent Application Laid-Open No. 2004-151561 describes a technique for preventing a user from accessing a harmful site by filtering a site accessed by an Internet service provider (hereinafter referred to as ISP).

  Such processing for preventing access to harmful sites is performed for each user account ID, for example. That is, when a user who wishes to prevent access to a harmful site registers with the ISP, and the ISP accesses the user account ID of the registered user, the ISP performs a process for preventing access to the harmful site.

  However, in the process of preventing access to harmful sites for each user account ID, a distinction is made between users who can browse harmful sites (for example, parents) and users who cannot browse harmful sites (for example, children). Instead, it is determined whether or not the process for preventing access to the harmful site is to be performed only with the user account ID.

  For example, if one family shares one personal computer and connects to the ISP with a single user account ID, you can worry about adverse effects on children and register access prevention for harmful sites with the ISP. If this happens, parents will be prohibited from accessing harmful sites. For this reason, the parent cannot confirm the contents of the harmful site, and the harmful effects of the harmful site on the society cannot be confirmed.

There is a technique for identifying a plurality of users who use the same device (for example, see Patent Document 2). Patent Document 2 describes a technique for identifying a parent and a child who use the same device by biometric authentication or password authentication. By the technique described in Patent Document 2, access to a harmful site can be prevented for each user regardless of the user account ID.
Japanese Patent Laid-Open No. 2003-23466 JP 2002-232559 A

  However, in order to identify a parent and child by biometric authentication, it is necessary to prepare a dedicated facility for biometric authentication. Also, when parent / child identification is performed by password authentication, a password input request screen appears each time a harmful site is accessed, so it is assumed that the parent knows the password and accesses the harmful site. It is inevitable to be done.

  The present invention provides a technique for solving the above-described problems and identifying whether a user accessing a network is a specific user without inputting biometrics or a password. By doing so, for example, it is possible to identify whether a user who wants to access a harmful site is a user who can view the harmful site, and the harmful site can be displayed only when the user is allowed to view the harmful site. It aims to be.

In order to solve the above problems, the present invention provides a specific user registered in advance from a plurality of users who use the same user ID in a Web page of a site requested by a user using a user terminal. If there is a keyword for identifying the keyword, if the keyword exists, the user using the user terminal is assumed to be a specific user, and the user is accessed until the access to the network is terminated thereafter. Assuming that the user using the terminal is a specific user, data processing corresponding to the user is executed.

  For example, if a specific user is a user who can browse harmful sites, a user who uses a user terminal can browse a pre-registered harmful site in the web page of the site requested to access. It is determined whether or not a keyword for identifying is present. If the keyword is present, it is assumed that the user using the user terminal is a user who can browse harmful sites. Thereafter, until the access to the network is completed, the user using the user terminal is assumed to be a user who can browse the harmful site, and the harmful site can be displayed.

  FIG. 1 is a conceptual diagram of a specific user identification device according to the present invention. The specific user identification device 10 includes a keyword registration unit 11, a keyword recording unit 12, a Web page acquisition unit 13, a Web page storage unit 14, a specific user identification determination unit 15, and a specific user correspondence processing unit 16. Is done.

  The keyword registration unit 11 records a keyword for identifying a specific user in the keyword recording unit 12. The Web page acquisition unit 13 acquires a Web page that the user desires to browse and stores it in the Web page storage unit 14.

  The specific user identification determination unit 15 determines whether the user is a specific user. Specifically, it is confirmed whether or not the keyword recorded in the keyword recording unit 12 exists in the Web page stored in the Web page storage unit 14. If the keyword exists, the user terminal is used. It is determined that the user is a specific user.

  The specific user correspondence processing means 16 is a means for executing data processing corresponding to a specific user when the user currently using the computer is recognized as the specific user. For example, it is possible to browse Web pages and start programs that are permitted only to that specific user.

  Such a specific user identification device 10 can be applied to a system that prevents the display of a harmful site, assuming that the specific user is a user who can browse the harmful site. For example, if it is determined that the user using the user terminal is a user who can browse the harmful site, whether the Web page stored in the Web page storage unit 14 is a Web page of the harmful site. The determination may not be performed. If it is not determined that the user using the user terminal is a user who can browse the harmful site, it is determined whether the Web page stored in the Web page storage unit 14 is a Web page of the harmful site. If it is determined that the web page is a harmful site, display of the web page is suppressed.

  The specific user identification device 10 as shown in FIG. 1 may be provided in a provider's server or may be provided in a terminal used by a user.

  In addition, a plurality of keyword candidates are registered in advance, a keyword to be used for determining whether the user is a specific user is selected from the registered keyword candidates, and the user selects a specific keyword using the selected keyword. You may make it determine whether it is a user. At this time, the keyword may be automatically changed for each user access.

  The processing in each means as described above can be realized by a computer and a software program, and the program can be recorded on a computer-readable recording medium or provided through a network.

  According to the present invention, even when a parent and a child share one user account ID, it is possible to determine whether the user currently using the user terminal is a parent or a child. Therefore, for example, it is possible to permit the display of a harmful site for a parent and prohibit the display of a harmful site for a child. In addition, since it is not necessary for the parent to enter a password or the like when accessing the harmful site, there is no need to worry about unnecessary guesses of the child.

  Furthermore, by automatically changing a keyword for performing parent-child identification, there is no concern that the child will be inferred from the parent-child identification method at the time of access from the access history to the network.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Below, the identification technique of the specific user in this invention is demonstrated using the example of a harmful site display prevention system. In addition to the technology for preventing harmful site display, the specific user identification technology can be applied to various technologies such as a technology that allows only specific users to download paid contents.

  In the following embodiment, a parent (a user who can browse harmful sites) and a child (a user who cannot browse harmful sites) use one user terminal and one user account ID together. Assuming that

[Embodiment 1]
FIG. 2 is a diagram illustrating a configuration example of the harmful site display prevention system according to Embodiment 1 of the present invention. In the first embodiment, harmful site display prevention processing is performed by a server on the ISP side. The harmful site display prevention system includes a user terminal 100 such as a personal computer used by a user using a network such as the Internet, an ISP system 200 that is a computer system on the ISP side, and a Web server 300 that provides a Web page. Composed.

  The ISP system 200 includes a parent preference word list registration unit 201, a parent preference word list storage unit 202, a parent identification data initial registration unit 203, a parent identification data storage unit 204, a proxy name data registration unit 205, and a proxy name. Data storage unit 206, Web page acquisition unit 207, Web page storage unit 208, parent identification determination unit 209, harmful site Web page determination unit 210, parent identification data automatic update unit 211, and next parent identification data home page And a public section 212.

  The parent preference word list registration unit 201 receives a parent preference word from the user terminal 100 and registers it in the parent preference word list. The parent preference word list storage unit 202 stores a parent preference word list. The parent identification data initial registration unit 203 receives a parent preference word used for initial parent identification from the user terminal 100 and registers it as parent identification data. The parent identification data storage unit 204 stores parent identification data. The proxy name data registration unit 205 receives the proxy name from the user terminal 100 and registers it as proxy name data. The proxy name data storage unit 206 stores proxy name data.

  The Web page acquisition unit 207 acquires the Web page specified by the URL from the Web server 300 that provides the Web page indicated by the URL specified from the user terminal 100. The web page storage unit 208 stores the web page acquired by the web page acquisition unit 207. The parent identification determination unit 209 confirms whether or not a parent preference word in the parent identification data is detected from the acquired Web page, and determines that the user who uses the user terminal 100 is the parent. The result of the determination is notified to the harmful site Web page determination unit 210 and is used to determine whether or not the subsequent Web page can be browsed. The harmful site web page determination unit 210 determines whether the web page acquired when the user using the user terminal 100 is not determined to be a parent is a harmful site web page, and the harmful site web page If it is determined that, the Web page is not transferred to the user terminal 100.

  When the user using the user terminal 100 is a parent and the connection of the user terminal 100 to the network is completed, the parent identification data automatic updating unit 211 determines the parent used for the next parent identification from the parent preference word list. Select a favorite word and register it as parent identification data. The next parent identification data homepage disclosure unit 212 publishes the next parent identification data confirmation homepage on which parent preference words used for next parent identification are posted.

  FIG. 3 is a flowchart of pre-registration processing in the first embodiment. A parent who uses the user terminal 100 registers a parent preference word, which is a word for identifying himself / herself, in the ISP system 200 in advance.

  First, the ISP system 200 that has received an access request from the user terminal 100 connects to the user terminal 100 (step S10). At this time, the ISP system 200 acquires a user account ID from the connected user terminal 100.

  When a parent preference word for registration in the parent preference word list is received from the user terminal 100 (step S11), the parent preference word list registration unit 201 associates the received parent preference word with the user account ID, and stores these information. Register in the parent preference word list (step S12). The parent preference word list is stored in the parent preference word list storage unit 202.

  FIG. 4 is a diagram showing an example of a parent preference word list in the first embodiment. A plurality of parent preference words are registered for each user account ID. In addition, although one parent preference word may be registered in the parent preference word list for one user account ID, it is more preferable that a plurality of parent preference words are registered for one user account ID. . Here, it is assumed that a plurality of parent preference words are registered for each user account ID.

  Next, when a parent preference word used as a keyword for initial parent identification is received from the user terminal 100 (step S13), the parent identification data initial registration unit 203 associates the received parent preference word with the user account ID, The identification data is registered in the parent identification data storage unit 204 (step S14).

  FIG. 5 is a diagram showing an example of parent identification data in the first embodiment. The user account ID and the parent preference word are associated with each other. The parent preference word of the parent identification data is selected from the parent preference words registered in the parent preference word list. Here, one parent preference word is registered for one user account ID, but a plurality of parent identification words may be registered for one user account ID.

  Finally, when a proxy name, which is a name that uniquely identifies the user (parent), is received from the user terminal 100 (step S15), the proxy name data registration unit 205 associates the received proxy name with the user account ID, The name data is registered in the proxy name data storage unit 206 (step S16).

  FIG. 6 is a diagram showing an example of proxy name data in the first embodiment. The user account ID and the proxy name are associated with each other. If the proxy name is unique, the user can specify any character string.

  In the process shown in FIG. 3, the parent preference word used as a keyword for the first parent identification is determined by designation from the user terminal 100, but the parent identification data automatic update unit 211 determines the first time from the parent preference word list. A parent preference word used for parent identification may be selected and registered as parent identification data. The parent preference word used for the selected first parent identification may be notified to the user (parent) on the spot, or may be disclosed on the next parent identification data confirmation homepage after the pre-registration process is completed. Further, the parent preference word used for the first parent identification may be unconditionally determined as the first word in the parent preference word list.

  FIG. 7 is a Web page filtering process flowchart according to the first embodiment. The ISP system 200 determines whether the user using the user terminal 100 is a parent from the Web page requested by the user terminal 100, and only when the user is not determined to be a parent, Web page determination processing is performed.

  First, the ISP system 200 that has received a network access request from the user terminal 100 performs a connection process with the user terminal 100 (step S20). At this time, the ISP system 200 acquires the user account ID from the user terminal 100.

  When receiving the URL of the Web site desired to be browsed from the user terminal 100 (Step S21), the Web page acquisition unit 207 specifies the URL from the Web server 300 that provides the Web page indicated by the URL specified from the user terminal 100. The acquired Web page is acquired (step S22), and the acquired Web page is stored in the Web page storage unit 208 (step S23).

  The parent identification determination unit 209 confirms whether the user who is already using the user terminal 100 has been determined to be a parent (step S24), and if it has not yet been determined to be a parent, step S25 to step S25 The process of S27 is performed. The parent identification data storage unit 204 is searched with the user account ID, and the corresponding parent identification data is acquired (step S25). It is confirmed whether or not a parent preference word of the acquired parent identification data is detected from the Web page stored in the Web page storage unit 208 (step S26), and if detected, the user currently using the user terminal 100 Is determined to be a parent (step S27).

  The harmful site Web page determination unit 210 confirms whether the user using the user terminal 100 is determined to be a parent (step S28). If it is determined to be a parent, the Web page storage unit The web page stored in 208 is transferred to the user terminal 100 (step S29). When the user terminal 100 receives an end of access to the network (step S30), a parent identification data update process is performed (step S31), and the process ends.

  If it is not determined to be a parent in step S28, it is determined whether the web page stored in the web page storage unit 208 is a harmful site (step S32). The stored web page is transferred to the user terminal 100 (step S33). If it is a harmful site, an error screen indicating that the Web page cannot be displayed is transferred to the user terminal 100 (step S34). When the access to the network is received from the user terminal 100 (step S35), the process is terminated.

  Note that the harmful site Web page determination process in step S32 may be an existing technology. For example, the technique described in Patent Document 1 described above may be used.

  Here, as a criterion for determining that a user currently using the user terminal 100 is a parent by detecting a parent preference word (keyword) designated by parent identification data from a Web page browsed by the user, Various standards are possible.

  For example, when there is only one keyword, the user may be determined to be a parent when a keyword is detected more than the specified number of times from one accessed Web page, or the keyword is accessed The user may be determined to be a parent when detected from a predetermined number or more of Web pages. Further, when there are a plurality of keywords, if all of the plurality of keywords are detected from one accessed Web page, it may be determined that the user is a parent. The user may be determined to be a parent when detected from any of a plurality of accessed web pages. Moreover, you may make it make a user select beforehand on the selection screen at the time of registration of a parent favorite word etc. which of these criteria is used.

  Various criteria can be considered as criteria for determining the start / end of access to the network from the user terminal 100.

  For example, in the case of dial-up connection, it is determined that the user terminal 100 has started access to the network at the time of connection, and it is determined that the user terminal 100 has ended access to the network at the time of disconnection. it can.

  In the case of a continuous connection line or the like, it is determined that the user terminal 100 has started access to the network by user authentication at the time of connection, and the user terminal 100 enters the network by receiving an access end signal from the user terminal 100. It can be determined that the access has been completed. Alternatively, it may be determined that the user terminal 100 has finished accessing the network when a specified time has elapsed since the user terminal 100 accessed the last Web page.

  In the user terminal 100, an access start signal is sent to the ISP system 200 when the browser is opened, and an access end signal is sent to the ISP system 200 when the browser is closed. In the ISP system 200, the start / end of access to the network from the user terminal 100 can be determined by receiving these signals.

  FIG. 8 is a flowchart of parent identification data update processing in the first embodiment. When the end of access to the network from the user terminal 100 is confirmed, the ISP system 200 automatically updates the parent identification data used for parent identification at the next connection and publishes it on a dedicated home page.

  First, when the end of access to the network from the user terminal 100 is confirmed (step S40), the parent identification data automatic update unit 211 corresponds to the user corresponding to the parent preference word list stored in the parent preference word list storage unit 202. A parent preference word used for next parent identification is extracted from the parent preference words belonging to the account ID (step S41), and the corresponding parent preference word stored in the parent identification data storage unit 204 is extracted. The parent preference word in the parent identification data of the user account ID is updated (step S42).

  The next parent identification data homepage disclosure unit 212 acquires a proxy name from the proxy name data of the corresponding user account ID stored in the proxy name data storage unit 206 (step S43), and the parent preference of the updated parent identification data The word is associated and published on the next parent identification data confirmation homepage (step S44).

  FIG. 9 is a diagram showing an example of the browser screen of the home page for next parent identification data confirmation in the first embodiment. The parent user can know the parent preference word used for parent identification at the next access from the proxy name registered on the homepage for next parent identification data confirmation as shown in FIG. Since only the parent who registered the proxy name knows the proxy name, it is difficult for the child to see the parent preference word of his / her parent even if he / she sees this homepage.

  The first embodiment of the present invention has been described above, but the present invention is not limited to this. For example, in the first embodiment, a case has been described in which one user terminal 100 is shared by a parent and child. However, even when a plurality of user terminals 100 are used with one user account ID in one home, this user terminal 100 is used. The invention can be applied.

  In addition, for example, a word frequently appearing on a web page (excluding a web page of a harmful site) browsed when the user using the user terminal 100 is determined to be a parent is automatically detected and detected. The parent preference word list may be automatically updated with the set word as the parent preference word. In this way, since the parent preference word list can be automatically rewritten, it is difficult for a child to estimate a keyword (parent preference word) for browsing a harmful site.

[Embodiment 2]
FIG. 10 is a diagram illustrating a configuration example of the harmful site display prevention system according to Embodiment 2 of the present invention. The second embodiment is a mode in which harmful site display prevention processing is performed at a terminal on the user side. The harmful site display prevention system includes a user terminal 100 such as a personal computer used by a user using a network such as the Internet, an ISP system 200 that is a computer system on the ISP side, and a Web server 300 that provides a Web page. Composed.

  The user terminal 100 includes a parent identification data registration unit 101, a parent identification data storage unit 102, a Web page acquisition unit 103, a Web page storage unit 104, a parent identification determination unit 105, a harmful site Web page determination unit 106, Is provided.

  The parent identification data registration unit 101 registers parent preference words input by the user (parent) as parent identification data. The parent identification data storage unit 102 stores parent identification data. Unlike the parent preference word list (see FIG. 4) and parent identification data (see FIG. 5) in the first embodiment described above, in the second embodiment, it is not necessary to manage data for each user account ID. As identification data, one or more parent preference words may be simply registered.

  The Web page acquisition unit 103 acquires the Web page specified by the URL via the ISP system 200 from the Web server 300 that provides the Web page indicated by the URL specified by the user. The web page storage unit 104 stores the web page acquired by the web page acquisition unit 103.

  The parent identification determination unit 105 confirms whether or not the parent preference word of the parent identification data is detected from the acquired Web page, and determines that the user using the user terminal 100 is the parent when detected. The determination result is stored, for example, until the connection to the network is completed, the browser is closed, the power of the user terminal 100 is turned off, or until a predetermined time elapses.

  The harmful site web page determination unit 106 determines whether the web page acquired when the user using the user terminal 100 is not determined to be a parent is a harmful site web page, and the harmful site web page If it is determined that the Web page is not displayed, the Web page cannot be displayed.

  FIG. 11 is a Web page filtering process flowchart according to the second embodiment. The user terminal 100 determines whether the user using the user terminal 100 is a parent from the Web page requested by the user, and only when the user is not determined to be the parent, the harmful site Web page A determination process is performed. It is assumed that the parent identification data has already been registered.

  First, the user terminal 100 that has received a network access request from the user starts access to the network (step S50). When receiving the designation of the web page desired to be browsed from the user (step S51), the web page acquisition unit 103 is designated via the ISP system 200 from the web server 300 that provides the web page designated by the user. A web page is acquired (step S52), and the acquired web page is stored in the web page storage unit 104 (step S53).

  The parent identification determination unit 105 confirms whether or not the user has already been determined to be a parent (step S54), and if it has not yet been determined to be a parent, performs the processing of steps S55 to S57. Parent identification data (parent preference word) is acquired from the parent identification data storage unit 102 (step S55). It is confirmed whether or not the acquired parent preference word is detected from the Web page stored in the Web page storage unit 104 (step S56). If it is detected, it is determined that the current user is the parent (step S57). . This determination result is stored by turning on a parent identification flag (not shown).

  The harmful site Web page determination unit 106 confirms whether the user using the user terminal 100 is determined to be a parent (step S58). If it is determined to be a parent, the Web page storage unit The web page stored in 104 is displayed (step S59). When the user has finished accessing the network (step S60), the process is terminated.

  If it is not determined in step S58 that the user is a parent, it is determined whether the web page stored in the web page storage unit 104 is a harmful site web page (step S61). For example, the Web page stored in the Web page storage unit 104 is displayed (step S62). If the web page is a harmful site, an error screen indicating that the web page cannot be displayed is displayed (step S63). When the user has finished accessing the network (step S64), the process is terminated.

  The second embodiment of the present invention has been described above, but the present invention is not limited to this. For example, in the second embodiment, the case where the parent identification data (parent preference word) is not automatically changed has been described. However, as in the first embodiment, the parent preference word in which a plurality of parent preference words are registered. Create a list, automatically extract one or more parent preference words from it, update the parent identification data, and perform parent identification with different parent preference words for each access to the network .

  Next, specific examples using the present invention will be described with reference to FIGS. 12 to 15 show specific examples of procedures, operations, and the like for each of the user (user PC) side, ISP side, and Internet (each Web site) side. Here, a parent and a child use one user account ID (“ABC001”) together on one personal computer (user PC).

[Pre-registration of each data]
FIG. 12 is a diagram for explaining pre-registration of each data by the parent in the embodiment of the present invention. A user (parent) who uses the harmful site display prevention service provided by the ISP registers a parent preference word used for parent identification in advance.

(1) Pre-registration of parent preference word list The parent pre-registers a plurality of parent preference words to be used for parent identification in the parent preference word list of the system on the ISP side. As the parent preference word, a word (for example, “golf”, “go”, etc.) found on a Web site that is not browsed by a child is selected and registered.

  In the system on the ISP side, a plurality of parent preference words registered from the user side are recorded in the parent preference word list of the database in association with the user account ID (“ABC001”) of the user. In FIG. 12, seven words “golf”, “go”, “health”, “information processing”, “finance”, “law”, and “qualification” registered by the user (parent) are displayed in the parent preference word list. It is recorded.

(2) Pre-registration of initial parent identification data A parent pre-registers a parent preference word used as a keyword for initial parent identification in the system on the ISP side. The parent preference word to be registered is selected from a pre-registered parent preference word list.

  In the system on the ISP side, a parent preference word used as a keyword for initial parent identification registered from the user side is recorded in the database as parent identification data in association with the user account ID (“ABC001”) of the user. In FIG. 12, the word “golf” is recorded as parent identification data.

(3) Pre-registration of proxy name When the parent identification data is automatically changed by the ISP-side system, the parent uses the ISP-side proxy name necessary to know the parent preference word of the parent identification data. Register in advance. As a proxy name, select and register a name that is not guessed by the child.

  In the system on the ISP side, the proxy name registered from the user side is recorded in the database as proxy name data in association with the user account ID (“ABC001”) of the user. In FIG. 12, a character string “KS012” is recorded as proxy name data.

[Access to the Internet by children]
FIG. 13 is a diagram for explaining access to the Internet by a child in the embodiment of the present invention. When the user is a child, the user (child) is prevented from accessing a harmful site.

(4) Access to the Internet A child accesses the Internet with a user PC and requests browsing of the Web page A. At the start of access to the Internet, a user account ID (“ABC001”) is sent to the ISP side system. In the system on the ISP side, the Web page A requested by the user (child) is acquired from a Web site on the Internet.

(5) Parent Identification Determination Processing In the ISP side system, the parent identification data in the database is searched with the user account ID (“ABC001”) of the user, and a parent favorite word (“golf”) used as a parent identification keyword is acquired. . It is checked whether or not a parent preference word (“golf”) as parent identification data appears in the Web page A acquired from the Web site. Here, since the word “golf” is not detected from Web page A, the user cannot be recognized as a parent.

(6) Hazardous Site Web Page Determination Processing In the ISP-side system, since the user is not recognized as the parent in the parent identification determination processing, the harmful site Web page determination processing is performed for Web page A. Here, since it is determined that the Web page A is not a harmful site Web page (innocuous site), the Web page A is transferred to the user PC. On the user PC, Web page A is displayed.

(7) Access to the Internet Next, the child requests browsing of the Web page B in the same session (from the start to the end of access to the Internet) as in the above (4). In the system on the ISP side, the Web page B requested by the user (child) is acquired from a Web site on the Internet.

(8) Parent identification determination processing Since the ISP side system has not yet determined that the user is the parent in the same session, the parent identification determination processing is performed in the same manner as in (5) above. Here, since the word “golf” is not detected from the Web page B as in the case of the Web page A, the user cannot be recognized as a parent.

(9) Hazardous Site Web Page Determination Processing In the ISP-side system, since the user is not recognized as a parent in the parent identification determination processing, the harmful site Web page determination processing is performed for Web page B. Here, since it is determined that the Web page B is a Web page of a harmful site, the Web page B is not transferred to the user PC. On the user PC, an error screen indicating that Web page B cannot be displayed is displayed.

[Access to the Internet by parents]
FIG. 14 is a diagram for explaining access to the Internet by a parent in the embodiment of the present invention. When the user is a parent, the user (parent) can access the harmful site.

(10) Access to the Internet The parent accesses the Internet with the user PC and requests browsing of the Web page C. At the start of access to the Internet, a user account ID (“ABC001”) is sent to the ISP side system. In the system on the ISP side, the Web page C requested by the user (parent) is acquired from a Web site on the Internet.

(11) Parent Identification Determination Processing In the ISP side system, the parent identification data in the database is searched with the user account ID (“ABC001”) of the user, and a parent favorite word (“golf”) used as a parent identification keyword is acquired. . It is checked whether or not a parent preference word (“golf”) as parent identification data appears in the Web page C acquired from the Web site. Here, since the word “golf” is detected from the Web page C, it is recognized that the user is a parent.

  Since the user is recognized as the parent, the harmful site Web page determination process is not executed. The system on the ISP side transfers the Web page C to the user PC as it is. On the user PC, Web page C is displayed.

(12) Access to the Internet Next, the parent requests browsing of the Web page D in the same session as the above (10) (from the start to the end of access to the Internet). In the system on the ISP side, the Web page D requested by the user (parent) is acquired from a Web site on the Internet.

(13) Parent Identification Determination Processing Here, since the user has already been determined to be a parent in the same session (the parent identification determination processing in (11) above), the word “golf” is detected from Web page D. If not, the user is recognized as a parent.

  The Web page D is a harmful site Web page, but since the user is already recognized as the parent in the same session, the harmful site Web page determination process is not executed. The system on the ISP side transfers the Web page D as it is to the user PC. On the user PC, the Web page D is displayed.

[Automatic update of parent identification data]
FIG. 15 is a diagram illustrating automatic update of parent identification data by the system on the ISP side in the embodiment of the present invention. The system on the ISP side automatically updates the parent preference word of the parent identification data. The updated parent identification data becomes a keyword used for the next parent identification.

(14) Automatic update of parent identification data After the ISP has completed access to the Internet (end of the session), the parent preference word of the current parent identification data is used as a parent keyword for the next parent identification. It is automatically updated to the favorite word. At this time, the parent preference word to be used as a keyword for the next parent identification is searched from the parent preference word list recorded in the database with the user account ID (“ABC001”), and is randomly selected from the obtained parent preference word list. Selected. Here, “information processing” is selected as the parent preference word as a keyword used for the next parent identification, and the parent preference word in the parent identification data is rewritten from “golf” to “information processing”.

(15) Disclosure of next parent preference word The ISP-side system uses the parent preference word (parent preference word used as the next parent identification keyword) of the parent identification data rewritten by automatic update to the homepage on the Internet (next time It is disclosed on the parent identification data confirmation website. At this time, in the ISP side system, the proxy name data in the database is searched by the user account ID (“ABC001”), and the proxy name (“KS012”) of the obtained proxy name data and the next parent preference word (“information”) are searched. Process ”) and post it on the next parent identification data confirmation homepage (URL: http://nextoya.co.jp).

(16) Confirmation of next parent preference word The parent browses the home page for next parent identification data confirmation on the user PC, and the next parent preference word is “information processing” from his / her proxy name (“KS012”). Confirm.

  The features of the embodiments and examples of the present invention described above are summarized as follows.

(Appendix 1)
A specific user identification program for causing a server computer to execute a process for identifying a specific user from a plurality of users using the same user ID,
Said computer,
Means for storing a keyword for identifying a specific user for each user ID;
Means for acquiring a web page that the user using the user terminal desires to browse;
Means for checking whether or not the keyword corresponding to the user ID of the user terminal exists in the acquired Web page;
When the keyword corresponding to the user ID of the user terminal exists in the Web page that the user using the user terminal wants to browse, the user using the user terminal is the specific user. Means to judge that
Specific user identification program to function as

(Appendix 2)
In the specific user identification program described in Appendix 1,
Said computer,
Means for storing a plurality of keyword candidates for identifying a specific user for each user ID;
Means for selecting a keyword for identifying the specific user at a predetermined opportunity from the plurality of keyword candidates, and storing the selected keyword as a keyword used for identification of the specific user thereafter;
Specific user identification program to function as

(Appendix 3)
A specific user identification method for identifying a specific user from a plurality of users using the same user ID by a server computer,
Storing a keyword for identifying a specific user for each user ID;
A process in which a user using a user terminal acquires a Web page that the user wants to browse;
Checking whether or not the keyword corresponding to the user ID of the user terminal exists in the acquired Web page;
When the keyword corresponding to the user ID of the user terminal exists in the Web page that the user using the user terminal wants to browse, the user using the user terminal is the specific user. And a process of determining that the specific user is identified.

(Appendix 4)
In the specific user identification method described in Appendix 3,
Storing a plurality of keyword candidates for identifying a specific user for each user ID;
Selecting a keyword for identifying the specific user at a predetermined opportunity from the plurality of keyword candidates, and storing the selected keyword as a keyword used for identification of the specific user thereafter. Specific user identification method.

(Appendix 5)
A specific user identification device for identifying a specific user from a plurality of users using the same user ID provided in a server computer,
Means for storing a keyword for identifying a specific user for each user ID;
Means for acquiring a web page that the user using the user terminal desires to browse;
Means for checking whether or not the keyword corresponding to the user ID of the user terminal exists in the acquired Web page;
When the keyword corresponding to the user ID of the user terminal exists in the Web page that the user using the user terminal wants to browse, the user using the user terminal is the specific user. And a means for judging that the specific user identification device is provided.

(Appendix 6)
In the specific user identification device according to attachment 5,
Means for storing a plurality of keyword candidates for identifying a specific user for each user ID;
And a means for selecting a keyword for identifying the specific user at a predetermined opportunity from the plurality of keyword candidates, and storing the selected keyword as a keyword used for identifying the specific user thereafter. Specific user identification device.

(Appendix 7)
A specific user identification program for causing a computer used by a user browsing a web page to execute a process for identifying a specific user,
Said computer,
Means for storing a keyword for identifying a specific user;
Means for acquiring a web page that the user desires to browse;
Means for checking whether or not the keyword exists in the acquired Web page;
Means for determining that the user is the specific user when the keyword is present in a Web page that the user desires to browse;
Specific user identification program to function as

(Appendix 8)
In the specific user identification program described in Appendix 7,
Said computer,
Means for storing a plurality of keyword candidates for identifying a specific user;
Means for selecting a keyword for identifying the specific user at a predetermined opportunity from the plurality of keyword candidates, and storing the selected keyword as a keyword used for identification of the specific user thereafter;
Specific user identification program to function as

(Appendix 9)
A specific user identification method for identifying a specific user by a computer used by a user browsing a web page,
Storing a keyword to identify a specific user;
The process of acquiring the web page that the user wants to browse;
Checking whether the keyword exists in the acquired web page;
A method for identifying a specific user, comprising: determining that the user is the specific user when the keyword is present in a Web page that the user wants to browse.

(Appendix 10)
In the specific user identification method described in appendix 9,
Storing a plurality of keyword candidates for identifying a specific user;
Selecting a keyword for identifying the specific user at a predetermined opportunity from the plurality of keyword candidates, and storing the selected keyword as a keyword used for identification of the specific user thereafter. Specific user identification method.

(Appendix 11)
A specific user identification device for identifying a specific user provided in a computer used by a user who browses a web page,
Means for storing a keyword for identifying a specific user;
Means for acquiring a web page that the user desires to browse;
Means for checking whether or not the keyword exists in the acquired Web page;
A specific user identification apparatus comprising: means for determining that the user is the specific user when the keyword is present in a Web page that the user desires to browse.

(Appendix 12)
In the specific user identification device according to attachment 11,
Means for storing a plurality of keyword candidates for identifying a specific user;
And a means for selecting a keyword for identifying the specific user at a predetermined opportunity from the plurality of keyword candidates, and storing the selected keyword as a keyword used for identifying the specific user thereafter. Specific user identification device.

(Appendix 13)
A harmful site display prevention program to be executed on a server computer,
Said computer,
Means for storing, for each user ID, a keyword for identifying a user who can browse harmful sites;
Means for acquiring a web page that the user using the user terminal desires to browse;
Means for checking whether or not the keyword corresponding to the user ID of the user terminal exists in the acquired Web page;
When the keyword corresponding to the user ID of the user terminal exists in a Web page that the user using the user terminal wants to browse, the user using the user terminal browses a harmful site Means for determining that the user is permitted;
Means for determining whether the acquired web page is a web page of a harmful site;
Only when it is determined that the user using the user terminal is a user who can browse harmful sites, or when the acquired web page is not a web page of a harmful site, Means for transferring the acquired web page to the user terminal;
Harmful site display prevention program to function as.

(Appendix 14)
In the harmful site display prevention program described in Appendix 13,
Said computer,
Means for storing a plurality of keyword candidates for each user ID for identifying a user who can browse harmful sites;
A keyword for identifying a user who can browse the harmful site at a predetermined opportunity is selected from the plurality of keyword candidates, and is stored as a keyword used for identifying a user who can browse the subsequent harmful site. Means to do,
Harmful site display prevention program to function as.

(Appendix 15)
A method for preventing harmful site display by a server computer,
Storing a keyword for identifying a user who can browse harmful sites for each user ID;
A process in which a user using a user terminal acquires a Web page that the user wants to browse;
Checking whether or not the keyword corresponding to the user ID of the user terminal exists in the acquired Web page;
When the keyword corresponding to the user ID of the user terminal exists in a Web page that the user using the user terminal wants to browse, the user using the user terminal browses a harmful site The process of determining that a user is allowed,
Determining whether the acquired web page is a web page of a harmful site;
Only when it is determined that the user using the user terminal is a user who can browse harmful sites, or when the acquired web page is not a web page of a harmful site, And a process of transferring the acquired web page to the user terminal.

(Appendix 16)
In the harmful site display prevention method described in Appendix 15,
Storing a plurality of keyword candidates for each user ID for identifying a user who can browse harmful sites;
A keyword for identifying a user who can browse the harmful site at a predetermined opportunity is selected from the plurality of keyword candidates, and is stored as a keyword used for identifying a user who can browse the subsequent harmful site. A harmful site display prevention method characterized by comprising:

(Appendix 17)
A harmful site display prevention device provided in a server computer,
Means for storing, for each user ID, a keyword for identifying a user who can browse harmful sites;
Means for acquiring a web page that the user using the user terminal desires to browse;
Means for checking whether or not the keyword corresponding to the user ID of the user terminal exists in the acquired Web page;
When the keyword corresponding to the user ID of the user terminal exists in a Web page that the user using the user terminal wants to browse, the user using the user terminal browses a harmful site Means for determining that the user is permitted;
Means for determining whether the acquired web page is a web page of a harmful site;
Only when it is determined that the user using the user terminal is a user who can browse harmful sites, or when the acquired web page is not a web page of a harmful site, A harmful site display preventing apparatus comprising: means for transferring the acquired web page to the user terminal.

(Appendix 18)
In the harmful site display preventing apparatus described in appendix 17,
Means for storing a plurality of keyword candidates for each user ID for identifying a user who can browse harmful sites;
A keyword for identifying a user who can browse the harmful site at a predetermined opportunity is selected from the plurality of keyword candidates, and is stored as a keyword used for identifying a user who can browse the subsequent harmful site. And a harmful site display preventing device.

(Appendix 19)
A harmful site display prevention program to be executed by a computer used by a user browsing a web page,
Said computer,
Means for storing a keyword for identifying a user who can browse harmful sites;
Means for acquiring a web page that the user desires to browse;
Means for checking whether or not the keyword exists in the acquired Web page;
Means for determining that the user is a user who can browse harmful sites when the keyword is present in a web page that the user wants to browse;
Means for determining whether the acquired web page is a web page of a harmful site;
The acquired Web page is displayed only when it is determined that the user is a user who can browse the harmful site or the acquired Web page is not a Web page of the harmful site. Means to do,
Harmful site display prevention program to function as.

(Appendix 20)
In the harmful site display prevention program described in Appendix 19,
Said computer,
Means for storing a plurality of keyword candidates for identifying users who can browse harmful sites;
A keyword for identifying a user who can browse the harmful site at a predetermined opportunity is selected from the plurality of keyword candidates, and is stored as a keyword used for identifying a user who can browse the subsequent harmful site. Means to do,
Harmful site display prevention program to function as.

(Appendix 21)
A harmful site display prevention method by a computer used by a user who browses a web page,
Storing a keyword for identifying a user who can browse harmful sites,
The process of acquiring the web page that the user wants to browse;
Checking whether the keyword exists in the acquired web page;
Determining that the user is a user who can browse harmful sites when the keyword is present in a web page that the user wants to browse;
Determining whether the acquired web page is a web page of a harmful site;
The acquired Web page is displayed only when it is determined that the user is a user who can browse the harmful site or the acquired Web page is not a Web page of the harmful site. A harmful site display prevention method characterized by comprising:

(Appendix 22)
In the harmful site display prevention method described in Appendix 21,
Storing a plurality of keyword candidates for identifying users who can browse harmful sites,
A keyword for identifying a user who can browse the harmful site at a predetermined opportunity is selected from the plurality of keyword candidates, and is stored as a keyword used for identifying a user who can browse the subsequent harmful site. A harmful site display prevention method characterized by comprising:

(Appendix 23)
A harmful site display preventing apparatus provided in a computer used by a user who browses a web page,
Means for storing a keyword for identifying a user who can browse harmful sites;
Means for acquiring a web page that the user desires to browse;
Means for checking whether or not the keyword exists in the acquired Web page;
Means for determining that the user is a user who can browse harmful sites when the keyword is present in a web page that the user wants to browse;
Means for determining whether the acquired web page is a web page of a harmful site;
The acquired Web page is displayed only when it is determined that the user is a user who can browse the harmful site or the acquired Web page is not a Web page of the harmful site. And a harmful site display preventing device.

(Appendix 24)
In the harmful site display prevention apparatus according to attachment 23,
Means for storing a plurality of keyword candidates for identifying users who can browse harmful sites;
A keyword for identifying a user who can browse the harmful site at a predetermined opportunity is selected from the plurality of keyword candidates, and is stored as a keyword used for identifying a user who can browse the subsequent harmful site. And a harmful site display preventing device.

It is a conceptual diagram of the specific user identification device in the present invention. It is a figure which shows the structural example of the harmful site display prevention system in Embodiment 1 of this invention. It is a prior registration process flowchart in this Embodiment 1. FIG. It is a figure which shows the example of the parent preference word list in this Embodiment 1. FIG. It is a figure which shows the example of the parent identification data in this Embodiment 1. FIG. It is a figure which shows the example of the proxy name data in this Embodiment 1. FIG. 5 is a Web page filtering process flowchart according to the first embodiment. It is a parent identification data update process flowchart in this Embodiment 1. FIG. It is a figure which shows the example of the browser screen of the homepage for the next parent identification data confirmation in this Embodiment 1. FIG. It is a figure which shows the structural example of the harmful site display prevention system in Embodiment 2 of this invention. It is a Web page filtering process flowchart in this Embodiment 2. FIG. It is a figure explaining the prior registration of each data by the parent in the Example of this invention. It is a figure explaining the access to the internet by the child in the Example of this invention. It is a figure explaining the access to the internet by the parent in the Example of this invention. It is a figure explaining the automatic update of the parent identification data by the system by the side of the ISP in the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Specific user identification apparatus 11 Keyword registration means 12 Keyword recording means 13 Web page acquisition means 14 Web page storage means 15 Specific user identification determination means 16 Specific user corresponding processing means 100 User terminal 101 Parent identification data registration part 102 Parent identification data storage part DESCRIPTION OF SYMBOLS 103 Web page acquisition part 104 Web page storage part 105 Parent identification determination part 106 Hazardous site Web page determination part 200 ISP system 201 Parent favorite word list registration part 202 Parent preference word list storage part 203 Parent identification data initial registration part 204 Parent identification data Storage unit 205 Proxy name data registration unit 206 Proxy name data storage unit 207 Web page acquisition unit 208 Web page storage unit 209 Parent identification determination unit 210 Hazardous site Web page determination unit 211 Automatic update of parent identification data 212 next parent identification data website disclosure section 300 Web server

Claims (5)

A specific user identification program for causing a server computer to execute a process for identifying a specific user from a plurality of users using the same user ID,
Said computer,
Means for storing a keyword for identifying a specific user for each user ID;
Means for acquiring a web page that the user using the user terminal desires to browse;
Whether the server recognizes the association between the user terminal and the user ID based on the user ID acquired from the user terminal by the server, and whether the keyword corresponding to the user ID exists in the acquired Web page. Means to investigate,
It said in a Web page that the user using the user terminal wants to browse, if the keyword corresponding to the previous Kiyu over The ID exists, the user is the user of the specific that you are using the user terminal Means to judge that
Specific user identification program to function as The specific user identification program according to claim 1,
Said computer,
Means for storing a plurality of keyword candidates for identifying a specific user for each user ID;
Means for selecting a keyword for identifying the specific user at a predetermined opportunity from the plurality of keyword candidates, and storing the selected keyword as a keyword used for identification of the specific user thereafter;
Specific user identification program to function as A specific user identification method for identifying a specific user from a plurality of users using the same user ID by a server computer,
Storing a keyword for identifying a specific user for each user ID;
A process in which a user using a user terminal acquires a Web page that the user wants to browse;
Whether the server recognizes the association between the user terminal and the user ID based on the user ID acquired from the user terminal by the server, and whether the keyword corresponding to the user ID exists in the acquired Web page. The process of examining,
It said in a Web page that the user using the user terminal wants to browse, if the keyword corresponding to the previous Kiyu over The ID exists, the user is the user of the specific that you are using the user terminal And a process of determining that the specific user is identified. A specific user identification device for identifying a specific user from a plurality of users using the same user ID provided in a server computer,
Means for storing a keyword for identifying a specific user for each user ID;
Means for acquiring a web page that the user using the user terminal desires to browse;
Whether the server recognizes the association between the user terminal and the user ID based on the user ID acquired from the user terminal by the server, and whether the keyword corresponding to the user ID exists in the acquired Web page. Means to investigate,
It said in a Web page that the user you are using a user terminal wants to browse, in a case where the keyword corresponding to the previous Kiyu over The ID exists, the user is the user of the specific that you are using the user terminal And a means for judging that the specific user identification device is provided. A specific user identification program for causing a computer used by a user who browses a Web page to execute a process for identifying a specific user from a plurality of users who use the same user ID ,
Said computer,
Means for storing a keyword for identifying a specific user;
Means for acquiring a web page that the user desires to browse;
Means for checking whether or not the keyword exists in the acquired Web page;
Means for determining that the user is the specific user when the keyword is present in a Web page that the user desires to browse;
Specific user identification program to function as

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