JPWO2016079860A1 - Visitor authentication system and visitor authentication method - Google Patents

Abstract

The visitor authentication system 1 includes an IC card 8 possessed by a visitor 7 who visits a destination 3, a server device 20 having an IC card writing device 16 and storing time-limited information (verification information 60), It includes a visited device 10 that is installed at the visited site 3 and has an IC card reading / writing device 16 and is communicably connected to the server device 20. The visitor authentication system 1 writes time-limited information on the IC card 8 prior to the visitor 7 visiting the visit destination 3. The visitor authentication system 1 is a time-limited storage in which the server device 20 stores information read from the IC card 8 set in the IC card reading / writing device 16 when the visitor 7 visits the visiting destination 3. The visitor 7 is authenticated by collating with the information. In the verification, the visitor authentication system 1 excludes information outside the valid period from the time limit information stored in the server device 20 from the verification target.

Description

  The present invention relates to a visitor authentication system and a visitor authentication method.

  In recent years, scams and robberies pretending to be visitors such as courier companies have occurred, and various mechanisms have been proposed to distinguish these visitors.

  For example, in Patent Document 1, a camera for capturing an image of a visitor and an entrance slave device having a function of calling and calling a resident, a display unit for displaying an image captured by the camera, and a call from the entrance slave device are disclosed. An intercom system having a responding master unit with a response function, and a home delivery management server for storing home delivery information such as delivery destination information of delivery deliveries and scheduled delivery time is installed in the delivery agent. And a server communication means for communicating with the home delivery management server via the mobile phone, and further provided with a bar code reading unit for reading the bar code from the bar code image of the home delivery imaged by the camera in the entrance cordless handset or the home base phone. It is disclosed that the parent device acquires home delivery information from the home delivery management server based on the read barcode information, and displays the acquired information on a display unit.

  Further, for example, Patent Document 2 has a function of calling a resident and making a call, and has a function of responding by receiving a call from the entrance machine and a front door installed in a dwelling unit entrance or a lobby of an apartment house. An intercom system having a room unit installed in a dwelling unit. The room unit opens a WEB page for accessing a courier server via the Internet to inquire about a package, and opens a doorway by a courier who has visited. It is disclosed that an inquiry number of a package is input from a machine, and the input inquiry number is collated with data of a delivery company server.

JP 2010-200022 A JP 2010-177935 A

  In the above patent document, the case where the visitor is a courier is targeted, but the target of impersonation is not necessarily limited to the courier, and a mechanism for accurately determining whether or not the various visitors are impersonated There is a need for. The authentication information used in such a mechanism should be highly reliable information that can reliably determine the identity of the visitor, and highly secure information with little risk of information leakage, etc. desirable. In addition, it is desirable that such a mechanism should be simple so as not to cause a burden on residents and visitors for authentication.

  The present invention has been made in view of such a background, and provides a visitor authentication system and a visitor authentication method capable of reliably and safely authenticating a visitor with a simple configuration. It is an object.

  One aspect of the present invention for achieving the above object is a visitor authentication system, which has an IC card possessed by a visitor visiting a visited place, an IC card writing device, and time-limited information. A server device for storing, and a visitor device that is installed at the visited site and has an IC card reader and is communicably connected to the server device, the visitor visiting the visited site Prior to writing the time-limited information to the IC card possessed by the visitor, the server device reads the information read from the IC card set in the reader when the visitor visits the visit destination. The visitor is authenticated by checking with the time-limited information stored in

  As described above, the visitor authentication system of the present invention authenticates a visitor by comparing the time-limited information written in the IC card with the time-limited information stored in the server device. Visitors who have visited can be reliably authenticated. Further, the server device only needs to manage time-limited information that does not need to be managed for a long time as collation information, and the management burden of information is small.

  Another one of the present invention is the above-described visitor authentication system, and in the collation, the information that is outside the valid period among the time-limited information stored in the server device is the object of the collation. It will be excluded from.

  As described above, during verification, the visitor authentication system excludes information outside the valid period out of the time-limited information stored in the server device from the target of verification, so that falsification of authentication information is effectively prevented. Can authenticate visitors safely and securely.

  Another aspect of the present invention is the visitor authentication system, wherein the time-limited information includes information indicating an organization to which the visitor belongs, information indicating a visit purpose of the visitor, and the visit It is assumed that at least one of the information indicating the destination and the information indicating the visit date and time of the visitor to the visit destination is included.

  Since these pieces of information can only be known by visitors and respondents at the visit destination, it is possible to effectively prevent falsification and impersonation by authenticating visitors using these pieces of information as verification information. Visitors can be authenticated securely.

  Another one of the present invention is the above-described visitor authentication system, further including the IC card writing device provided at the visited place, and authenticating the visitor when visiting the visited place If successful, the visit history to the visit destination is written in the IC card, and the time limit corresponding to the information read from the IC card set in the reader stored in the server device is stored. The visit history for the visited site is reflected in the information, and the collation is performed between the visit history written in the IC card and the visit history stored in the server device at the time of the collation at the next and subsequent visits. It shall be the target of.

  As described above, the visitor authentication system can also check the visit history, so that the visitor can be more reliably authenticated. Note that the visit history is unique information for each visitor, and it is difficult for a third party to specify, and the security of authentication can be greatly enhanced. In addition, since the visit history is usually less confidential than personal information, there is less risk of information leakage.

  Another aspect of the present invention is the visitor authentication system, wherein the visited device includes an output device that outputs the authentication result.

  As a result, the visitor at the destination can take an appropriate response to the visitor based on the authentication result.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  According to the present invention, a visitor can be authenticated securely and safely with a simple mechanism.

1 is a diagram illustrating a schematic configuration of a visitor authentication system 1. FIG. It is a figure which shows the main hardware with which the visited apparatus 10 is provided. It is a figure which shows the main functions with which the visited apparatus is provided. It is a figure which shows the main hardware with which the server apparatus 20 is provided. It is a figure which shows the main functions with which the server apparatus 20 is provided. It is a figure which shows an example of the collation information stored in the database. It is a flowchart explaining visitor authentication processing S700. 4 is an example of a data structure of an authentication request 80. It is an example of the data structure of the authentication result 90. It is a figure which shows the example of an output (display) of the authentication result 93 of the output device. It is a flowchart explaining visitor authentication processing S1100. It is an image figure of the visitor authentication service shown as an application example.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic configuration of a visitor authentication system 1 described as an embodiment. As shown in the figure, the visitor authentication system 1 includes an IC card 8 (Integrated circuit card) carried by a visitor 7 who visits the visited site 3, a visited device 10 installed at the entrance of the visited site 3, and a visitor. The server apparatus 20 installed in the office of the organization to which the person 7 belongs (hereinafter referred to as the service center 4) is included. The visited device 10 and the server device 20 are communicably connected via a communication network 5 such as the Internet. Communication between the visited device 10 and the server device 20 via the communication network 5 is performed safely using VPN (Virtual Private Network), SSL (Secure Sockets Layer), or the like.

  The server device 20 stores collation information, which is time-limited information used when authenticating the visitor 7 who visits the visit destination 3. When visiting the visitor 3, the visitor 7 sets the IC card 8 in the IC card writing device 26 of the server device 20 and writes the verification information into the IC card 8.

  When arriving at the visited place 3, the visitor 7 sets the IC card 8 in the IC card reading / writing device 16 provided in the visited apparatus 10. The visited device 10 reads information from the IC card 8, generates an authentication request 80 with the read information attached thereto, and transmits the generated authentication request 80 to the server device 20 via the communication network 5.

  When the server device 20 receives the authentication request 80 from the visited device 10, the server device 20 authenticates the visitor 7 by comparing the information accompanying the authentication request 80 with the verification information stored in the server device 20. If the information accompanying the authentication request 80 is included in the collation information stored in the server device 20, the server device 20 determines that the authentication is successful (visitor 7 is valid), and the authentication request 80 If the accompanying information is not included in the collation information stored in the server device 20, it is determined that the authentication has failed (visitor 7 is illegal (suspicious)). The server device 20 transmits an authentication result 90 (determination result) to the visited device 10 via the communication network 5.

  When the visited device 10 receives the authentication result 90 from the server device 20, the visited device 10 outputs the content and notifies the visitor 6 of the visited site 3. The responder 6 appropriately responds to the visitor 7 based on the authentication result 90.

  Thus, in the visitor authentication system 1 of the present embodiment, the visitor 7 is created by comparing the information written in the IC card 8 with the time-matched collation information stored in the server device 20. Therefore, the visitor 7 who has visited the destination 3 can be reliably authenticated. In the above mechanism, the server device 20 only needs to manage time-limited information that does not need to be managed for a long time as the collation information, and the information management burden can be reduced.

  The time-limited information includes, for example, information indicating the organization to which the visitor 7 belongs, information indicating the visit purpose of the visitor 7 to the visit destination 3, information indicating the visit destination 3 of the visitor 7, and information on the visitor 7 This is information indicating the visit date and time to the visit destination 3. Since such information is usually information that only the visitor 7 or the visitor 6 at the visit destination 3 can know, it is possible to effectively prevent falsification and impersonation by authenticating the visitor 7 using the information as verification information. be able to.

  Next, a specific configuration of the visitor authentication system 1 will be described in detail.

  FIG. 2 shows main hardware included in the visited device 10. As shown in the figure, the visited device 10 includes a processor 11, a storage device 12, an input device 13, an output device 14, a communication device 15, an IC card reading / writing device 16, a locking control device 17, and a sensor 18. . These are connected to be communicable via a communication means such as a bus.

  The processor 11 is configured using, for example, a CPU (Central Processing Unit) and an MPU (Micro Processing Unit). The storage device 12 is a device that stores programs and data, and is, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), an NVRAM (Non Volatile RAM), or the like. The input device 13 is a user interface that receives input of information and instructions from the user, and is, for example, a keypad, a touch panel, a mouse, or the like. The output device 14 is a user interface that provides information to the user, and is, for example, a liquid crystal panel, an LED (Light Emitting Diode), a speaker, or the like. The communication device 15 is a device that provides a function of communicating with other devices such as the server device 20 via the communication network 5, and is, for example, a NIC (Network Interface Card) or a wireless communication module.

  The IC card reading / writing device 16 reads data from the set IC card 8 or writes data to the IC card 8. The IC card 8 includes a storage element, a communication device, and a processor for storing data such as RAM, ROM, and NVRAM in the card. Data stored in the storage device of the IC card 8 can be accessed from an external device by a contact method or a non-contact method. The locking control device 17 controls opening and closing of the door 3 of the visited site. The sensor 18 is a moving object detection sensor, a camera, a microphone, or the like.

  FIG. 3 shows main functions and main information (data) of the visited device 10. As shown in the figure, the visited device 10 includes a collation information reading unit 101, an authentication processing unit 102, a visit history writing unit 103, an interphone processing unit 104, and a lock control unit 105. All or some of these functions are realized by the processor 11 reading and executing a program stored in the storage device 12. Further, as shown in the figure, the visited device 10 stores the identifier of the visited site 3 where the visited device 10 is installed (hereinafter referred to as a visited site ID 151).

  The verification information reading unit 101 reads information from the IC card 8 set in the IC card reading / writing device 16. The authentication processing unit 102 authenticates the visitor 7 in cooperation with the server device 20 and outputs the result to the output device 14. The visit history writing unit 103 writes the visit history (visit date / time) to the IC card 8 when the authentication of the visitor 7 is successful. The interphone processing unit 104 functions as an interphone among the functions of the visited device 10 (a call function between the slave device that is communicably connected to the visited device 10 (between the person 6 and the visitor 7). The lock control unit 105 automatically responds to the operation input of the response person 6 performed via the input device 13 (or according to the result of verification of the authentication processing unit 102). B) Controls the opening and closing of the door 3 door lock.

  FIG. 4 shows main hardware included in the server device 20. As shown in the figure, the server device 20 includes a processor 21, a storage device 22, an input device 23, an output device 24, a communication device 25, and an IC card writing device 26. The server device 20 is realized using, for example, an information processing device such as a personal computer, or an information processing device provided by a cloud or a data center.

  The processor 21 is configured using, for example, a CPU and an MPU. The storage device 22 is a device that stores programs and data, and is, for example, a ROM, a RAM, an NVRAM, or the like. The input device 23 is a user interface that receives input of information and instructions from the user, and is, for example, a keypad, a touch panel, a mouse, or the like. The output device 24 is a user interface that provides information to the user, such as a liquid crystal monitor. The communication device 25 is a device that provides a function of communicating with other devices such as the visited device 10 via the communication network 5, and is, for example, a NIC or a wireless communication module. The IC card writing device 26 writes data to the IC card 8 set in the device by a contact method or a non-contact method.

  FIG. 5 shows main functions of the server device 20. As shown in the figure, the server device 20 includes a collation information registration unit 201, an authentication processing unit 202, a visit history reflection unit 203, and a database 204.

 The verification information registration unit 201 registers the verification information received via the input device 23 or the communication device 25 in the database 204. The authentication processing unit 202 authenticates the visitor 7 in cooperation with the visited device 10. More specifically, the authentication processing unit 202 performs the authentication by comparing the information read from the IC card 8 sent from the visited device 10 with the collation information registered in the database 204. The authentication result is transmitted to the visited apparatus 10. The visit history reflection unit 203 reflects the visit history (visit date / time) in the collation information registered in the database 204 when the visitor 7 is successfully authenticated. The database 204 manages (stores) collation information. The database 204 is realized by, for example, a DBMS (Database Management System).

  FIG. 6 shows an example of collation information registered in the database 204. Each column (record) shown in the figure corresponds to one collation information. As shown in the figure, the collation information 60 includes items of an organization ID 61, a visit purpose 62, a visit destination ID 63, a scheduled visit date and time 64, an effective period 65, and a visit date and time 66. Among these, the organization ID 61 is set with the identifier of the organization to which the visitor 7 belongs. In the visit purpose 62, information indicating the purpose (business) for the visitor 7 to visit the visited place 3 is set. In the visit destination ID 63, an identifier of the visit destination of the visitor 7 is set. In the scheduled visit date and time 64, the visit date and time of the visitor 7 to the visit destination 3 is set. In the validity period 65, information (valid period start date and time, validity period end date and time) indicating the validity period of the verification information 60 is set. Note that the authentication processing unit 202 excludes the verification information 60 outside the valid period 65 from the target of verification with the information read from the IC card 8. In the visit date and time 66, the visit date and time is set as a visit history in which the visitor 7 actually visited the visit destination 3 corresponding to the matching information 60.

  Next, processing performed in the visitor authentication system 1 (hereinafter referred to as visitor authentication processing S700) will be described with reference to the flowchart shown in FIG.

  As shown in the figure, when the user (visitor 7 who wants to visit the destination 3, operator of the service center 4, etc.) performs an input operation of new collation information via the input device 23, the server device 20. (S711: YES), the input collation information is registered in the database 204 (S712).

  Prior to the visit, the visitor 7 who wants to visit the visit destination 3 sets the IC card 8 to be carried at the visit to the IC card writing device 26 of the server device 20, and collates information to the IC card 8 in the server device 20. The write request operation is performed. When the server device 20 detects the write request operation (S713: YES), the server device 20 writes the collation information 60 corresponding to the visit schedule to the set IC card 8. For example, the collation information 60 stored in the server device 20 has the contents shown in FIG. 6, the visitor 7 is a courier, and the visitor ID 63 of the visitor 3 scheduled to be visited by the visitor 7 is “01539” and “ In the case of “02345”, the server device 20 writes the verification information 60 indicated by reference numeral 651 and the verification information 60 indicated by reference numeral 652 in FIG.

  The visitor 7 carries the IC card 8 in which the verification information is written, and visits the visited place 3. When arriving at the visited site 3, the visitor 7 sets the IC card 8 in the IC card reading / writing device 16 of the visited device 10. When the visited device 10 detects that the IC card 8 is set in the IC card reading / writing device 16 (S751: YES), it reads information from the IC card 8 (S752). Then, the visited device 10 transmits an authentication request 80 including verification information read from the IC card 8 to the server device 20 (S753).

  FIG. 8 shows an example of the data structure of the authentication request 80. As shown in the figure, the authentication request 80 includes a transmission source network ID (transmission source NWID 81) (for example, transmission source IP address), a transmission destination network ID (transmission destination NWID 82) (for example, transmission destination IP address), and the like. Header information including authentication information 83, which is information indicating that the data is an authentication request, and information 84 read from the IC card 8.

  When the server device 20 receives the authentication request 80 (S715: YES), the server device 20 authenticates the visitor 7 by comparing the information 84 included in the received authentication request 80 with the verification information registered in the database 204. (S716). For example, the server device 20 performs the authentication by checking whether or not the collation information 60 that matches the information 84 included in the authentication request 80 is registered in the database 204. In the collation, information outside the valid period is excluded from the collation targets among the collation information 60 registered in the server device 20. In the authentication, for example, between the information 84 included in the authentication request 80 and the verification information 60, all items of the organization ID 61, the purpose of visit 62, the destination ID 63, and the scheduled visit date / time 64 of the verification information 60 are included. Whether or not they completely match may be used as a criterion, or whether or not one or more of the above items match may be used as a criterion.

  Subsequently, the server device 20 transmits the authentication result to the visited device 10 that is the transmission source of the authentication request 80 (S717).

  FIG. 9 shows an example of the data structure of the authentication result 90. As shown in the figure, the authentication result 90 indicates that the header information including the network ID of the transmission source (transmission source NWID 91), the network ID of the transmission destination (transmission destination NWID 92), and the data is the authentication result. The authentication result 93 which is the information shown is included. If authentication is successful in the authentication processing of S716, “authentication success” is set in the authentication result 93, and if authentication fails, “authentication failure” is set in the authentication result 93.

  Upon receiving the authentication result 90 (S754: YES), the visited device 10 outputs the authentication result 93 to the output device 14 (S755). FIG. 10 shows an output (display) example of the authentication result 93 of the output device 14.

  Based on the authentication result 93 output from the output device 14, the respondent 6 at the destination 3 determines how to respond to the visitor 7. For example, when the authentication result 93 is “authentication successful”, the respondent 6 unlocks the door and responds to the visitor 7. If the authentication result 93 is “authentication failure”, the visitor 7 is responded by notifying the visitor 7 that the authentication has failed without unlocking the door.

<Other processing examples>
FIG. 11 shows another example of processing performed in the visitor authentication system 1 (hereinafter referred to as visitor authentication processing S1100).

  In the figure, the processing of S711 to S715 performed by the server device 20 is the same as the visitor authentication processing S700 of FIG. This visitor authentication process S1100 differs from the visitor authentication process S700 in that the server device 20 uses the visit date and time 66 (visit history) as a target of verification in the authentication process of S716. Further, in this visitor authentication processing S1100, when the visitor 7 is successfully authenticated (S718: YES, S756: YES), the visitor 7 who has been authenticated by the visited device 10 is sent to the IC card reading / writing device 16. The current date and time (visit history) is written in the set IC card 8 as the visit date and time (S757), and the collation information stored in the server device 20 and corresponding to the information read from the IC card 8 by the visited device 10 60 is different from the visitor authentication processing S700 in that the current date (visit history) is reflected in the visit date 66 (S719). Since the visit history does not exist when visiting the first destination 3, the second date (or after the second time of the same destination 3) is used as the comparison target in the authentication process of S716. At the time of visit).

  As described above, in the visitor authentication processing S1100, when the visitor 7 is authenticated based on the information read from the IC card 8, the visit date / time 66 (visit history) is a target of verification, so that the visitor 7 is more reliably authenticated. Can be done. Note that the visit history of the visitor 7 is unique information for each visitor 7, and it is difficult for a third party to specify, and the security of authentication can be greatly increased. Moreover, since it is less confidential than personal information, there is little risk of information leakage. The authentication includes, for example, the organization ID 61, the visit purpose 62, the visit destination ID 63, the scheduled visit date and time 64, and the visit date and time 66 of the verification information 60 between the information 84 included in the authentication request 80 and the verification information 60. Whether or not all items are completely matched may be used as a criterion, or whether or not one or more of the above items are matched may be used as a criterion.

  The embodiment of the present invention has been described above, but the above description is intended to facilitate understanding of the present invention and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

  For example, in the above description, the server device 20 compares the information read from the IC card 8 with the verification information 60 (authentication processing S716). However, the visited device 10 receives the verification information 60 from the server device 20. And a process corresponding to the authentication process S716 may be performed on the visited device 10 side.

  Further, for example, the identifier (ID) of the visited device 10 (or the identifier (ID) of the IC card reading / writing device 16) is registered in the server device 20 in advance, and the identifier is used as the visited destination 3 of the visitor 7. Prior to the visit to, the information may be written on the IC card 8 of the visitor 7 and the identifier may be subjected to collation in the above-described collation (authentication process S716). By doing so, the visitor 7 can be more reliably authenticated.

  The server device 20 may be operated by an operator that provides a visitor authentication service using a cloud service or the like (hereinafter referred to as an authentication operator). In this case, for example, a person who wants to use the visitor authentication service (the person 6 or the like) enjoys the service by signing a use contract with the authentication business operator.

  FIG. 12 shows an image diagram of a visitor authentication service configured based on such a service form. In this example, the authentication business operator 90 concludes the use contract with the user (customer 6) and cooperates with a plurality of business enterprises 91 (company A (delivery company), company B (delivery company), etc.). Yes. Writing to the IC card 8 that is performed in advance when the visitor 7 visits the destination 3 is connected to the server device 10 through a communication means such as the Internet or a dedicated line so that the service center of each business operator 91 can communicate. And the IC card writing device 26 installed in a vehicle (a delivery vehicle, a collection / delivery vehicle, etc.). The IC card writing device 26 may be connected to, for example, a PC installed on the provider side. In this case, for example, the visitor ID 63 is assigned when the authentication business operator 90 receives information on the visit destination 3 from each business operator 91 (the received information specifies the visit destination 3 such as the address of the visit destination 3). Information may be included.), And the given visitor ID (or alternative information such as the address of the visitor 3) is transmitted from the authentication company 90 to the participating company via communication means. To.

DESCRIPTION OF SYMBOLS 1 Visitor authentication system, 3 Visit destination, 4 Service center, 5 Communication network, 6 Visitor, 7 Visitor, 8 IC card, 10 Visit device, 16 IC card reader / writer, 80 Authentication request, 90 Authentication result , 101 verification information reading unit, 102 authentication processing unit, 103 visit history writing unit, 20 server device, 26 IC card writing device, 201 verification information registration unit, 202 authentication processing unit, 203 visit history reflection unit, 204 database

Claims (10)

IC card possessed by a visitor visiting the destination,
A server device having an IC card writing device and storing time-limited information;
A visited device installed at the visited site, having an IC card reader, and connected to the server device in a communicable manner;
Including
Prior to the visit of the visitor to the visit destination, the time-limited information is written on an IC card possessed by the visitor,
When the visitor visits the visit destination, the information read from the IC card set in the reading device is compared with the time-limited information stored in the server device to identify the visitor. Authenticate visitor authentication system. A visitor authentication system according to claim 1,
At the time of the collation, a visitor authentication system that excludes information outside the valid period from the time-limited information stored in the server device from the collation target. The visitor authentication system according to claim 1 or 2,
The time-limited information includes information indicating an organization to which the visitor belongs, information indicating the visit purpose of the visitor, information indicating the visit destination, and information indicating a visit date and time of the visitor to the visit destination A visitor authentication system that includes at least one of the following. The visitor authentication system according to claim 1 or 2,
The IC card writing device further provided at the visited site,
When the visitor is successfully authenticated during the visit to the visit destination, the visit history to the visit destination is written to the IC card, and the server device stores the IC set in the reading device. Reflect the visit history to the visit to the time-limited information corresponding to the information read from the card,
A visitor authentication system in which the visit history written in the IC card and the visit history stored in the server device are to be collated at the time of the next and subsequent visits. The visitor authentication system according to claim 1 or 2,
The visited device includes an output device that outputs the authentication result. IC card possessed by a visitor visiting the destination,
A server device having the IC card writing device and storing time-limited information;
A visited device provided at the visited site, having a reading device for the IC card and connected to the server device in a communicable manner;
A visitor authentication method using a visitor authentication system comprising:
The visitor authentication system is
Writing the time-limited information on an IC card prior to the visit to the visitor by the visitor;
When the visitor visits the visit destination, the information read from the IC card set in the reading device is compared with the time-limited information stored in the server device to identify the visitor. A visitor authentication method including the step of authenticating. The visitor authentication method according to claim 6,
The visitor authentication system is
A visitor authentication method that excludes information outside the valid period from the time-limited information stored in the server device during the verification. A visitor authentication method according to claim 6 or 7,
The time-limited information includes information indicating an organization to which the visitor belongs, information indicating the visit purpose of the visitor, information indicating the visit destination, and information indicating a visit date and time of the visitor to the visit destination A visitor authentication method that includes at least one of the following. A visitor authentication method according to claim 6 or 7,
The visitor authentication system further includes a writing device for the IC card provided at the visited site,
The visitor authentication system is
When the visitor is successfully authenticated during the visit to the visit destination, the visit history to the visit destination is written to the IC card, and the server device stores the IC set in the reading device. Reflecting the visit history to the destination in the time-limited information corresponding to the information read from the card;
The visitor authentication method further comprising the step of making the visit history written in the IC card and the visit history stored in the server device the object of the collation at the time of the collation at the next and subsequent visits . A visitor authentication method according to claim 6 or 7,
The visited device includes an output device that outputs the authentication result;
The visitor authentication system further includes a step of outputting the authentication result by the visitor authentication system.