JP6533424B2 - Communication system and program - Google Patents

Description

  The present invention relates to a communication system and program.

There has been known a communication system which controls so that data in a closed network can be viewed from a communication terminal located in an open network (for example, see Patent Document 1).
[Prior art document]
[Patent Document]
[Patent Document 1] Patent No. 4551218

  It has been desired to improve the convenience when using data in a closed network by a plurality of communication terminals.

  According to the first aspect of the present invention, each of the first communication terminal and the second communication terminal is authenticated by the same user ID, and both the first communication terminal and the second communication terminal log in to the information providing service. Logging in to the information providing service, a terminal authentication unit that maintains the current state, a data receiving unit that receives data on which the copying operation has been performed in the first communication terminal from the first communication terminal logging in to the information providing service; There is provided a communication system comprising: a paste request receiving unit for receiving a paste request from a second communication terminal; and a data transmitting unit for transmitting data to the second communication terminal in response to the paste request.

  The communication system is the same as the second communication terminal when the data storage unit for storing the data received by the data receiving unit and the paste request receiving unit receives the paste request from the second communication terminal. And a data determination unit that determines whether the data received from the first communication terminal authenticated by the user ID of the user and logged in to the information providing service is stored in the data storage unit. The data transmission unit may transmit the data to the second communication terminal when it is determined that the data is stored in the data storage unit. In the communication system, the data storage unit may delete the data in response to an elapse of a predetermined time after the data received by the data reception unit is stored. The communication system includes a history storage unit for storing a history of data subjected to a copy operation in the first communication terminal, received by the data receiving unit, for a predetermined period, and the paste request receiving unit performs the second communication The history transmission unit transmits the history stored in the history storage unit to the second communication terminal when the paste request is received from the terminal, and the history transmission unit transmits the second communication terminal The data receiving unit may further comprise a designation receiving unit for receiving designation of data for the history, and the data transmitting unit may cause the designated data to be received in response to the designation receiving unit receiving the designation of data for the history. It may be transmitted to the second communication terminal.

  The communication system may be located in a second network in which access from the first network is restricted, and may include an information providing device including the data receiving unit, the paste request receiving unit, and the data transmitting unit, The receiving unit may receive the data from the first communication terminal located in the first network via the relay device located in the first network, and the paste request receiving unit may be the relay device The paste request may be received from the second communication terminal located in the first network via the data transmission unit, and the data transmission unit transmits the data to the second communication terminal via the relay device. You may The information providing apparatus may further include a paste request confirmation unit that confirms whether the relay apparatus has received the paste request by intermittently inquiring the relay apparatus, and the paste request reception The unit may receive the paste request from the relay device when the paste request confirmation unit confirms that the relay device has received the paste request.

  According to the second aspect of the present invention, each of the first communication terminal and the second communication terminal is authenticated by the same user ID, and both the first communication terminal and the second communication terminal log in to the information providing service. A copy indicating that a copy operation has been performed on data in the second network at the terminal authentication unit maintaining the current state and at the first communication terminal located in the first network and logged in to the information providing service A paste request is received from a copy notification information receiving unit that receives notification information, a link information storage unit that stores link information for data, and a second communication terminal located in the first network and logged in to the information providing service A communication system comprising: a paste request receiving unit; and a link information transmission unit transmitting link information to the second communication terminal in response to the paste request. That.

  In the communication system, when the paste request receiving unit receives the paste request, whether or not link information for the data indicated by the copy notification information indicated by the copy notification information is stored in the link information storage unit The link information determination unit may be further included, and the link information transmission unit may determine the link information as the second communication terminal when it is determined that the link information is stored in the link information storage unit. May be sent to The communication system includes an information providing device located in the second network and including the terminal authentication unit, the copy notification information receiving unit, the link information storage unit, the paste request receiving unit, and the link information transmission unit. The second network may be restricted in access from the first network, and the copy notification information receiving unit may transmit the first communication terminal to the first communication terminal via the relay device located in the first network. The copy request information may be received, and the paste request receiving unit may receive the paste request from the second communication terminal via the relay device, and the link information transmission unit may be via the relay device The link information may be transmitted to the second communication terminal. The information providing apparatus may further include a paste request confirmation unit that confirms whether the relay apparatus has received the paste request by intermittently inquiring the relay apparatus, and the paste request reception The unit may receive the paste request from the relay device when the paste request confirmation unit confirms that the relay device has received the paste request.

  According to the third aspect of the present invention, each of the first communication terminal and the second communication terminal is authenticated by the same user ID, and both the first communication terminal and the second communication terminal log in to the information providing service. The data stored in the first data storage device located in the second network in the terminal authentication unit maintaining the current state and in the first communication terminal located in the first network and logged in to the information providing service In the second network from the copy notification information receiving unit that receives the copy notification information indicating that the copy operation has been performed for the second communication terminal and the second communication terminal located in the first network and logging in to the information providing service A paste request receiving unit for receiving a paste request for the second data storage device located in Communication system comprising a storage control unit to be stored in the second data storage device is provided with.

  The storage control unit is a data acquisition unit for acquiring from the first data storage device the data on which the copy operation indicated by the copy notification information has been made from the first data storage device, and in response to the paste request reception unit receiving the paste request. And a data transmission unit for transmitting the data acquired by the data acquisition unit to the second data storage device.

  According to a fourth aspect of the present invention, there is provided a program for causing a computer to function as the communication system.

  Note that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a subcombination of these feature groups can also be an invention.

BRIEF DESCRIPTION OF THE DRAWINGS An example of the communication environment of the information provision apparatus 100 is shown roughly. An example of a flow of processing by information providing device 100 is shown roughly. BRIEF DESCRIPTION OF THE DRAWINGS An example of a function structure of the information provision apparatus 100 is shown roughly. An example of a flow of processing by information providing device 100 is shown roughly. An example of a function structure of the token authentication part 110 is shown roughly. An example of a function structure of the management apparatus 300 is shown roughly. An example of a flow of processing by information providing device 100 is shown roughly. An example of a function structure of the provision source information processing part 150 is shown roughly. An example of the provision source registration information table 500 is shown roughly. An example of a flow of processing by information providing device 100 is shown roughly. An example of a flow of processing by information providing device 100 is shown roughly. An example of a flow of processing by information providing device 100 is shown roughly. An example of a function structure of the copy data processing part 170 is shown roughly. An example of a flow of processing by relay apparatus 200 is shown roughly. An example of a function structure of the relay apparatus 200 is shown roughly. An example of a function structure of the communication terminal 400 is shown roughly. The example of a display by communication terminal 400 is shown roughly. The example of a display by communication terminal 400 is shown roughly.

  Hereinafter, the present invention will be described through the embodiments of the invention, but the following embodiments do not limit the invention according to the claims. Moreover, not all combinations of features described in the embodiments are essential to the solution of the invention.

  FIG. 1 schematically illustrates an example of a communication environment of the information providing apparatus 100. In the present embodiment, the information providing apparatus 100 is connected to a network 10 which is a closed network. The information providing apparatus 100 provides an information providing service 101 for providing information in the closed network to the communication terminal 400 connected to the network 50 which is an open network. The information providing apparatus 100 may be an example of a communication system.

  The network 10 is, for example, an in-house network in which access from an open network is restricted. The network 50 includes, for example, the Internet and a mobile telephone communication network. The communication terminal 400 is, for example, a mobile phone such as a smartphone, a tablet terminal, a PC (Personal Computer), or the like. The network 50 may be an example of a first network. The network 10 may be an example of a second network.

  In the present embodiment, the file server 12, the mail server 14 and the web server 16 are connected to the network 10. Note that these are merely examples, and any application server may be connected to the network 10. For example, in addition to the file server 12, the mail server 14, and the web server 16, a groupware server, a web database, and the like may be connected to the network 10. The electronic file managed by the file server 12, the mail data managed by the mail server 14, and the Web data managed by the web server 16 may be an example of information provided by the information providing service 101. The file server 12, the mail server 14, and the web server 16 may be an example of a data storage device.

  In the present embodiment, the network 10 is connected to the network 50 via the router 20. The router 20 passes the connection request from the network 10 to the network 50 but does not pass the connection request from the network 50 to the network 10.

  The communication terminal 400 located in the network 50 registered in the information providing service 101 establishes a communication connection with the information providing apparatus 100 via the relay apparatus 200 connected to the network 50. The information providing apparatus 100 provides data managed by the file server 12, the mail server 14, and the web server 16 to the communication terminal 400 that has established communication connection, via the relay apparatus 200. Communication connection is established between the communication terminal 400, the file server 12, the mail server 14, and the web server 16 by the relay device 200 and the information providing device 100, and the communication terminal 400, the file server 12, the mail server 14 and the web server 16 may perform direct communication.

  The information providing service 101 supplied by the information providing apparatus 100 may provide the communication terminal 400 with information in the network 50. For example, after the information providing device 100 and the communication terminal 400 establish communication connection via the relay device 200, the information providing device 100 transmits data provided by a service located in the network 50 to the communication terminal 400. , And provided via the relay apparatus 200. Cloud service 52 and cloud service 54 may be an example of a service located in network 50. The cloud service 52 and the cloud service 54 may be Software as a Service (SaaS), Platform as a Service (PaaS), Infrastructure as a Service (IaaS), or the like. Communication connection is established between the communication terminal 400 and the cloud service 52 and the cloud service 54 by the information providing device 100 and the relay device 200, and the communication terminal 400 and the cloud service 52 and the cloud service 54 directly communicate with each other. It may be executed.

  The information providing apparatus 100 according to the present embodiment may execute a token authentication function. The token authentication function may be processing of authenticating the communication terminal 400 not logged in to the information providing service 101 via the communication terminal 400 logged on to the information providing service 101. Further, the token authentication function may be processing for authenticating the communication terminal 400 not registered in the information providing service 101 via the communication terminal 400 logged in to the information providing service 101. The information providing device 100 may execute the token authentication function in cooperation with the management device 300 located in the network 50.

  The information providing apparatus 100 according to the present embodiment may execute an active bookmark function. The active bookmark function registers providing source registration information including a plurality of providing source information indicating the providing sources of the respective data displayed by the plurality of communication terminals 400 registered as the terminal group, and the providing source When registration information is designated, it may be a function that causes a plurality of communication terminals 400 to display data provided by a provider indicated by a plurality of provider information included in the provider registration information.

  The information providing apparatus 100 according to the present embodiment may execute the inter-device clipboard function. The inter-device clipboard function may be a function of pasting data on which a copying operation has been performed in the communication terminal 400 to the outside of the communication terminal 400. The inter-device clipboard function is, for example, a function of pasting data on which a copy operation has been performed in one communication terminal 400 among the plurality of communication terminals 400 to another communication terminal 400 among the plurality of communication terminals 400.

  FIG. 2 schematically illustrates an example of the flow of processing by the information providing apparatus 100. FIG. 2 shows a flow of processing in which the information providing apparatus 100 establishes a communication connection with the communication terminal 400 registered in the information providing service 101.

  In step (which may be abbreviated as S in step 202), the communication terminal 400 transmits a connection request to the relay device 200. The connection request may include a user ID identifying a user who uses the communication terminal 400, a password, a terminal ID identifying the communication terminal 400, and an information providing apparatus ID identifying the information providing apparatus 100. At S204, the relay device 200 stores the received connection request.

  In S206, the information providing device 100 confirms with the relay device 200 whether or not the connection request for the information providing device 100 is stored in the relay device 200. The information providing device 100 may intermittently execute the confirmation of the connection request. For example, the information providing apparatus 100 performs confirmation of the connection request every one second.

  In S208, the relay device 200 transmits the connection request received from the communication terminal 400 to the information providing device 100. When the relay apparatus 200 receives a confirmation of the connection request from the information providing apparatus 100, the relay apparatus 200 determines whether the connection request including the information providing apparatus ID of the information providing apparatus 100 is stored. Then, when the connection request including the information providing device ID of the information providing device 100 is stored, the relay device 200 transmits the connection request to the information providing device 100.

  In S210, the information providing apparatus 100 determines whether or not authentication is possible based on the connection request received in S208. The information providing apparatus 100 determines whether or not authentication is possible by confirming whether or not the user ID, password, and terminal ID included in the connection request match the data registered in advance.

  In S212, the information providing device 100 transmits, to the relay device 200, a connection execution request for performing communication connection with the communication terminal 400 in response to the determination that the authentication is possible in S210.

  In S214, the relay device 200 establishes a communication connection between the information providing device 100 and the communication terminal 400. For example, the relay device 200 uses the IP address and port number used to transmit the connection execution request in S212 as the IP address and port number for identifying the logical line on the network 10 side from the communication terminal 400 in S202. The communication connection between the information providing apparatus 100 and the communication terminal 400 is established by associating with the IP address and the port number used at the time of transmission of the connection request.

  FIG. 3 schematically illustrates an example of a functional configuration of the information providing device 100. The information providing apparatus 100 includes an authentication information storage unit 102, a terminal authentication unit 103, a relay apparatus confirmation unit 104, a communication connection establishment unit 105, a content management unit 106, a content provision unit 107, a token authentication unit 110, and a provider information processing unit 150. And a copy data processing unit 170. In addition, it is not necessarily essential that the information providing apparatus 100 has all these configurations.

  The authentication information storage unit 102 stores authentication information used to authenticate the communication terminal 400 that has transmitted the connection request. The authentication information may include a combination of user ID, password and terminal ID. The terminal ID may be any data as long as the plurality of communication terminals 400 registered in the information providing service 101 can be identified. For example, the terminal ID is a MAC address of the communication terminal 400. The terminal ID may be data assigned by the information providing apparatus 100 when registering the communication terminal 400.

  The terminal authentication unit 103 determines whether the communication terminal 400 can be authenticated using the authentication information stored in the authentication information storage unit 102, and when it is determined that authentication is possible, the communication terminal 400 is authenticated. If it is determined that the authentication is not permitted, the terminal authentication unit 103 does not authenticate the communication terminal 400. The terminal authentication unit 103 manages the authenticated communication terminal 400 as logged in to the information providing service 101.

  The terminal authentication unit 103 according to the present embodiment can authenticate each of the plurality of communication terminals 400 with the same user ID, and maintain the state in which the plurality of communication terminals 400 log in to the information providing service 101. As a result, a user who owns a plurality of communication terminals 400 can log in to the information providing service 101 simultaneously using one user ID in the plurality of communication terminals 400.

  The relay apparatus confirmation unit 104 intermittently confirms with the relay apparatus 200 whether various requests transmitted from the communication terminal 400 to the information providing apparatus 100 are stored in the relay apparatus 200. For example, the relay apparatus confirmation unit 104 periodically executes the confirmation. Also, the relay apparatus confirmation unit 104 may execute the confirmation irregularly. The relay apparatus confirmation unit 104 may be an example of a paste request confirmation unit.

  The communication connection establishment unit 105 establishes communication connection with the communication terminal 400. The communication connection establishment unit 105 may establish a communication connection with the communication terminal 400 by transmitting a connection execution request to the relay device 200.

  The content management unit 106 manages the content in the network 10 provided to the communication terminal 400. The content in the network 10 may be data stored by an application server connected to the network 10. The electronic file data stored in the file server 12, the mail data stored in the mail server 14, and the web data stored in the web server 16 may be an example of content in the network 10. For example, when the content stored in the file server 12 is designated by the communication terminal 400 whose communication connection is established by the communication connection establishment unit 105, the content management unit 106 receives the content from the file server 12 and stores the content Do. Also, the content management unit 106 may manage the content in the network 50 provided to the communication terminal 400. The content in the network 50 may be data managed by a service connected to the network 50. For example, the content in the network 50 is data provided by the cloud service 52 and the cloud service 54.

  The content providing unit 107 provides the content managed by the content management unit 106 to the communication terminal 400 for which the communication connection has been established by the communication connection establishment unit 105. For example, when the content stored in the file server 12 is designated by the communication terminal 400, the content providing unit 107 transmits the content managed by the content management unit 106 to the communication terminal 400.

  The token authentication unit 110 performs a token authentication function. The token authentication unit 110 is registered in the communication terminal 400 or the information providing service 101 not logged in to the information providing service 101 via the communication terminal 400 authenticated by the terminal authentication unit 103 and logged in to the information providing service 101. It authenticates the communication terminal 400 which is not

  The providing source information processing unit 150 executes an active bookmark function. The provision source information processing unit 150 executes an active bookmark function on the plurality of communication terminals 400 authenticated by at least one of the terminal authentication unit 103 and the token authentication unit 110.

  The copy data processing unit 170 executes the inter-device clipboard function. The copy data processing unit 170 executes the inter-device clipboard function on the plurality of communication terminals 400 authenticated by at least one of the terminal authentication unit 103 and the token authentication unit 110.

  FIG. 4 schematically illustrates an example of the flow of processing by the information providing device 100. FIG. 4 schematically illustrates the flow of processing when the token authentication unit 110 of the information providing device 100 executes the token authentication function. Here, a state in which one user is using the communication terminal 402 and the communication terminal 404 and the communication terminal 402 is logged in to the information providing service 101 will be described as the start state. As shown in FIG. 4, the communication terminal 402 and the communication terminal 404 and the information providing device 100 may communicate via the relay device 200.

  In S402, the communication terminal 402 transmits a key data request for requesting a challenge key to the information providing apparatus 100. The challenge key may be an example of first key data.

  In S404, the information providing device 100 generates key data in response to receiving the key data request. The information providing device 100 may generate a challenge key and a response key. The response key may be an example of second key data.

  In S406, the information providing apparatus 100 generates authentication data for authenticating a communication terminal other than the communication terminal 402, and transmits the data to the management apparatus 300. The information providing apparatus 100 may generate authentication data including the challenge key and the response key generated in S404 and the user ID used by the communication terminal 402 that transmitted the key data request at the time of authentication. The management device 300 stores the received authentication data.

  In S408, the information providing apparatus 100 transmits the challenge key generated in S404 to the communication terminal 402. The communication terminal 402 that has received the challenge key may notify the user that the challenge key has been received.

  In S410, the communication terminal 404 accesses the management device 300. After the user of the communication terminal 402 and the communication terminal 404 transmits the key data request by the communication terminal 402, the user of the communication terminal 402 and the communication terminal 404 accesses the management apparatus 300 using the communication terminal 404 which wants to log in to the information providing service 101.

  At S412, the management device 300 transmits a key acquisition instruction to the communication terminal 404. The communication terminal 404 shifts to a state of waiting for the challenge key in response to receiving the key acquisition instruction. The communication terminal 404 may shift to a reception standby state for receiving a challenge key via near field communication. Near field communication includes, for example, wireless LAN (Local Area Network) such as Bluetooth (registered trademark), NFC (Near Field Communication), Wi-Fi (registered trademark) (Wireless Fidelity), etc., optical communication, and wireless communication. Voice communication etc.

  In S414, the communication terminal 402 transmits a challenge key to the communication terminal 404. For example, first, the communication terminal 402 searches for a communication terminal that has shifted to the reception standby state in the short-range wireless communication available range. Then, when a communication terminal in transition to a reception standby state is detected, a challenge key is transmitted to the communication terminal using the short distance wireless communication function.

  Here, although the example where communication terminal 404 receives a challenge key from communication terminal 402 via near field communication is described, the present invention is not limited to this. The communication terminal 404 may receive an input of a challenge key from the user. For example, first, the communication terminal 402 displays the challenge key received in S408. Further, the communication terminal 404 displays an input screen for inputting a challenge key in response to receiving the key acquisition instruction in S412. Then, the user browses the challenge key displayed on the communication terminal 402 and inputs the challenge key to the communication terminal 404.

  In S416, the communication terminal 404 transmits the challenge key acquired in S414 to the management device 300. In S418, the management apparatus 300 determines whether or not authentication is possible based on the challenge key received in S416 and the authentication data received in S406. If the management apparatus determines that the challenge key received in S416 matches the challenge key included in the authentication data, the management apparatus may determine that the authentication is possible. The management apparatus 300 may notify at least one of the communication terminal 402 and the communication terminal 404 that authentication is not, when it is determined that the authentication is not.

  In S420, the management device 300 transmits, to the communication terminal 404, the response key included in the authentication data received in S406. In S422, the communication terminal 404 transmits a response key to the communication terminal 402 via near field communication.

  Here, although the example where communication terminal 402 receives a response key from communication terminal 404 via near field communication is described, the present invention is not limited to this. The communication terminal 402 may receive an input of a response key from the user. For example, first, the communication terminal 404 displays the response key received in S420. After the communication terminal 402 transmits the challenge key in S414, the communication terminal 402 displays an input screen for inputting the response key. Then, the user browses the response key displayed on the communication terminal 404, and inputs it to the communication terminal 402.

  In S424, the communication terminal 402 transmits the response key acquired in S422 to the information providing apparatus 100. In S426, the information providing apparatus 100 determines whether or not authentication is possible based on the response key received in S424 and the response key generated in S404.

  If the information providing apparatus 100 determines that the response key received in S424 matches the response key generated in S404, the information providing apparatus 100 may determine that the authentication is possible. If the information providing apparatus 100 determines that the authentication is not possible, it may notify at least one of the communication terminal 402 and the communication terminal 404 that the authentication is not possible.

  In S428, the information providing device 100 generates an authenticated token and transmits it to the management device 300. The information providing device 100 may generate an authenticated token including the user ID used at the time of authentication by the communication terminal 402 that has transmitted the key data request, and the address information of the relay device 200. The information providing apparatus 100 may generate an authenticated token including an encrypted user ID encrypted using an encryption key stored in advance.

  At S430, the management device 300 transmits the authenticated token received at S428 to the communication terminal 404. In S432, the communication terminal 404 refers to the address information of the relay apparatus 200 included in the authenticated token received in S430, and transmits the encrypted user ID included in the authenticated token to the relay apparatus 200.

  In S434, the information providing apparatus 100 determines whether or not authentication is possible based on the encrypted user ID received in S432 and the user ID included in the authentication data generated in S406. If the information providing apparatus 100 determines that the user ID obtained by decrypting the encrypted user ID matches the user ID included in the authentication data, the information providing apparatus 100 may determine that the authentication is possible. If the information providing apparatus 100 determines that the authentication is not possible, it may notify at least one of the communication terminal 402 and the communication terminal 404 that the authentication is not possible.

  In S436, the information providing apparatus 100 transmits a connection execution request to the relay apparatus 200. At S438, the relay device 200 establishes a communication connection between the information providing device 100 and the communication terminal 404. As a result, the communication terminal 404 is in a state of logging in to the information providing service 101 with the same user ID as the communication terminal 402. The terminal authentication unit 103 may authenticate the communication terminal 402 and the communication terminal 404 with the same user ID, and maintain a state in which both the communication terminal 402 and the communication terminal 404 log in to the information providing service 101.

  The information providing device 100 may be an example of an authentication device. Also, the communication terminal 402 may be an example of a first communication terminal. Also, the communication terminal 404 may be an example of a second communication terminal.

  FIG. 5 schematically illustrates an example of a functional configuration of the token authentication unit 110. The token authentication unit 110 includes a key data request reception unit 112, a key data generation unit 114, an authentication data generation unit 116, an encryption unit 118, an authentication data storage unit 120, a key data transmission unit 122, and an authentication data transmission unit 124. The key data reception unit 126, the key authentication availability determination unit 128, the token transmission unit 130, the ID reception unit 132, the authentication availability determination unit 134, the communication connection establishment unit 136, and the terminal group registration unit 138 are provided. Note that the token authentication unit 110 is not necessarily required to have all these configurations.

  The key data request receiving unit 112 receives the key data request transmitted by the communication terminal 400. The key data request receiving unit 112 may receive the key data request via the relay device 200.

  The key data generation unit 114 generates key data in response to the key data request reception unit 112 receiving the key data request. The key data generation unit 114 may generate a challenge key and a response key.

  The authentication data generation unit 116 generates authentication data for authenticating the communication terminal 400 other than the communication terminal 400 that has transmitted the key data request. The authentication data may include the challenge key and the response key generated by the key data generation unit 114, and the user ID used by the communication terminal 400 that transmitted the key data request at the time of authentication.

  The encryption unit 118 encrypts the user ID used at the time of authentication by the communication terminal 400 that has transmitted the key data request. The encryption unit 118 may encrypt the user ID using an encryption key stored in advance. For example, the encryption unit 118 encrypts the user ID using the session key. The authentication data generation unit 116 may generate authentication data including the challenge key and the response key, and the encrypted user ID encrypted by the encryption unit 118. The authentication data storage unit 120 stores authentication data generated by the authentication data generation unit 116.

  The key data transmission unit 122 transmits the challenge key generated by the key data generation unit 114 to the communication terminal 400 that has transmitted the key data request. The key data transmission unit 122 may transmit the challenge key to the communication terminal 400 that has transmitted the key data request via the relay device 200. The key data transmission unit 122 may be an example of a first key data transmission unit. The authentication data transmission unit 124 transmits the authentication data generated by the authentication data generation unit 116 to the management apparatus 300.

  The key data receiving unit 126 receives a response key from the communication terminal 400 that has transmitted the key data request. The key data receiving unit 126 may be an example of a first key data receiving unit.

  The key authentication availability determination unit 128 determines the authentication availability based on the response key received by the key data reception unit 126 and the response key generated by the key data generation unit 114. When determining that the response key received by the key data receiving unit 126 matches the response key generated by the key data generating unit 114, the key authentication possibility determining unit 128 determines that authentication is possible. The key authentication possibility determination unit 128 may be an example of a first key authentication possibility determination unit.

  The token transmission unit 130 transmits an authenticated token to the management apparatus 300 when the key authentication propriety determination unit 128 determines that the authentication is possible. The token transmission unit 130 may be an example of a first token transmission unit. The ID receiving unit 132 receives the encrypted user ID from the communication terminal 400 other than the communication terminal 400 that has transmitted the key data request.

  The authentication availability determination unit 134 determines authentication availability based on the encrypted user ID received by the ID reception unit 132 and the user ID included in the authentication data generated by the authentication data generation unit 116. If the authentication possibility determination unit 134 determines that the encrypted user ID can be decrypted and the decrypted user ID matches the user ID included in the authentication data, it determines that authentication is possible. In the case where the encrypted user ID can not be decrypted, or in the case where it is determined that the decrypted user ID and the user ID included in the authentication data do not match, the authentication possibility determination unit 134 determines that the authentication is not possible. The token authentication availability determination unit 134 may be an example of the ID authentication availability determination unit.

  The communication connection establishment unit 136 establishes a communication connection with the communication terminal 400 that has transmitted the encrypted user ID received by the ID reception unit 132 when the authentication possibility determination unit 134 determines that the authentication is possible. The communication connection establishment unit 136 may establish a communication connection with the communication terminal 400 that has transmitted the encrypted user ID by transmitting a connection establishment request to the relay device 200.

  The terminal group registration unit 138 registers, in the same terminal group, the communication terminal 400 that has transmitted the key data request received by the key data request reception unit 112, and the communication terminal 400 that has established communication connection with the communication connection establishment unit 136. .

  FIG. 6 schematically illustrates an example of a functional configuration of the management device 300. The management apparatus 300 includes an authentication data reception unit 302, an authentication data storage unit 304, a terminal request reception unit 306, a key acquisition instruction transmission unit 308, a key data reception unit 310, a key authentication availability determination unit 312, and a key data transmission unit 314. , And a token receiving unit 316 and an ID transmitting unit 318. In addition, it is not necessarily essential that the management apparatus 300 has all these configurations.

  The authentication data reception unit 302 receives the authentication data transmitted by the authentication data transmission unit 124. The authentication data storage unit 304 stores the authentication data received by the authentication data reception unit 302.

  The terminal request reception unit 306 receives an access from the communication terminal 400. The access from the communication terminal 400 is, for example, an authentication request. Further, the access from the communication terminal 400 may be a key input page acquisition request. When the terminal request receiving unit 306 receives an access from the communication terminal 400, the key acquisition instruction transmitting unit 308 transmits a key acquisition instruction to the communication terminal 400.

  The key data receiving unit 310 receives a challenge key from the communication terminal 400 whose access has been accepted by the terminal request receiving unit 306. The key data receiving unit 310 may be an example of a second key data receiving unit.

  Based on the challenge key received by the key data receiving unit 310 and the challenge key included in the authentication data stored in the authentication data storage unit 304, the key authentication availability determination unit 312 determines the authentication availability. When determining that the challenge key received by the key data receiving unit 310 matches the challenge key included in the authentication data, the key authentication possibility determining unit 312 may determine that the authentication is possible. The key authentication possibility determination unit 312 may be an example of a second key authentication possibility determination unit.

  In the key data transmission unit 314, the terminal request reception unit 306 accesses the response key included in the authentication data stored in the authentication data storage unit 304 when the key authentication propriety determination unit 312 determines that the authentication is possible. Is transmitted to the communication terminal 400 that has accepted the request. The key data transmission unit 314 may be an example of a second key data transmission unit.

  The token reception unit 316 receives the authenticated token transmitted by the token transmission unit 130. The ID transmission unit 318 transmits the authenticated token received by the token reception unit 316 to the communication terminal 400 whose access has been accepted by the terminal request reception unit 306.

  FIG. 7 schematically illustrates an example of the flow of processing by the information providing apparatus 100. FIG. 7 shows the flow of processing when the information providing apparatus 100 executes the active bookmark function. Here, at least one of the terminal authentication unit 103 and the token authentication unit 110 is active with respect to the communication terminal 402, the communication terminal 404 and the communication terminal 406 which are authenticated by the same user ID and logged in to the information providing service 101. The case of executing the bookmark function will be described as an example. As shown in FIG. 7, the communication terminal 402, the communication terminal 404, the communication terminal 406, and the information providing apparatus 100 may communicate via the relay apparatus 200.

  In S702, the communication terminal 402 transmits, to the information providing apparatus 100, a request for displaying data stored in the file server 12. In S704, the information providing apparatus 100 transmits, to the file server 12, an acquisition request for data requested from the communication terminal 402. In S706, the file server 12 transmits data to the information providing device 100 in response to the acquisition request from the information providing device 100. In S708, the information providing apparatus 100 converts the data received from the file server 12 into browsing data to be displayed on the communication terminal 402, and transmits the browsing data to the communication terminal 402.

  In S710, the communication terminal 404 transmits, to the information providing apparatus 100, a request for displaying data stored in the mail server 14. In S712, the information providing apparatus 100 transmits, to the mail server 14, an acquisition request for data requested from the communication terminal 404. In S714, the mail server 14 transmits data to the information providing apparatus 100 in response to the acquisition request from the information providing apparatus 100. In S716, the information providing apparatus 100 converts the data received from the mail server 14 into browsing data to be displayed on the communication terminal 404, and transmits the browsing data to the communication terminal 404.

  In S718, the communication terminal 406 transmits, to the information providing apparatus 100, a request for displaying data stored in the web server 16. In S720, the information providing apparatus 100 transmits, to the web server 16, an acquisition request for data requested from the communication terminal 406. In S722, the web server 16 transmits data to the information providing device 100 in response to the acquisition request from the information providing device 100. In S724, the information providing apparatus 100 converts the data received from the web server 16 into browsing data to be displayed on the communication terminal 406, and transmits the browsing data to the communication terminal 406.

  In S726, the communication terminal 402 transmits, to the information providing apparatus 100, a registration instruction for registering the provider registration information. The registration instruction may include the name of the provider registration information. The registration instruction may be an example of a generation instruction of provider registration information.

  In S728, in response to the information providing device 100 receiving the registration instruction in S726, the plurality of providing source information indicating the providing sources of the data displayed by the communication terminal 402, the communication terminal 404, and the communication terminal 406, respectively. To get In the example of FIG. 7, the information providing apparatus 100 acquires providing source information indicating the file server 12, providing source information indicating the mail server 14, and providing source information indicating the web server 16. In S730, the information providing apparatus 100 generates providing source registration information including the plurality of providing source information acquired in S728.

  In S732, the communication terminal 402 transmits to the information providing apparatus 100 a display instruction of the provider registration information for which the registration instruction has been transmitted in S726. The display instruction may include the name of the provider registration information.

  In S734, the information providing apparatus 100 refers to the provision source registration information generated in S730 in accordance with the display instruction received in S732. The information providing apparatus 100 acquires a plurality of providing source information included in the providing source registration information. In this example, the provider registration information includes provider information indicating the file server 12, provider information indicating the mail server 14, and provider information indicating the web server 16.

  In S736, the information providing apparatus 100 transmits, to the communication terminal 402, the provision source information indicating the file server 12 acquired in S734. The communication terminal 402 transmits a display request for requesting data of the file server 12 to the information providing apparatus 100 according to the received provision source information.

  In S738, the information providing apparatus 100 transmits, to the communication terminal 404, the provider information indicating the mail server 14 acquired in S734. The communication terminal 404 transmits a display request for requesting data of the mail server 14 to the information providing apparatus 100 according to the received provision source information.

  In S740, the information providing apparatus 100 transmits, to the communication terminal 406, the provider information indicating the web server 16 acquired in S734. The communication terminal 406 transmits a display request for requesting data of the web server 16 to the information providing apparatus 100 according to the received provision source information.

  By the above-described processing, the work situation in a plurality of communication terminals 400 at a certain point can be reproduced at any timing thereafter. Thereby, when the user who utilizes the plurality of communication terminals 400 continues the work, it is possible to reduce the time and effort to reproduce the action situation.

  FIG. 8 schematically illustrates an example of a functional configuration of the provision source information processing unit 150. The provision source information processing unit 150 includes a generation instruction reception unit 152, a provision source information acquisition unit 154, a registration information generation unit 156, a registration information storage unit 158, a designation information reception unit 160, a provision source information transmission unit 162, and an inquiry output unit. And an inquiry response receiving unit 166. Note that the provision source information processing unit 150 is not necessarily required to have all these configurations.

  The generation instruction reception unit 152 receives, from the communication terminal 400, an instruction to generate provider registration information. The generation instruction of the provision source registration information may include the name of the provision source registration information. Further, the generation instruction of the provision source registration information may include designation of a terminal group which is a target of generation of the provision source registration information. The designation of the terminal group may include the terminal ID of the communication terminal 400 belonging to the terminal group.

  The provision source information acquisition unit 154 acquires provision source information in response to the generation instruction reception unit 152 having received the generation instruction of the provision source registration information from the communication terminal 400. In the case where the generation instruction includes the designation of the terminal group for which the provision source registration information is to be generated, the provision source information acquisition unit 154 selects the communication terminal 400 indicated by the terminal ID included in the designation and the generation instruction. Providing source information indicating the providing source of the data displayed by the communication terminal 400 that has transmitted the information is acquired.

  If the generation instruction does not include the specification of the terminal group to which the provider registration information is to be generated, the provider information acquisition unit 154 uses the same user as the communication terminal 400 that has transmitted the provider registration information generation instruction. The communication terminal 400 authenticated by the ID and logged in to the information providing service 101 and the provider information indicating the provider of the data displayed by the communication terminal 400 that has transmitted the generation instruction are acquired.

  The registration information generation unit 156 generates provision source registration information including the plurality of provision source information acquired by the provision source information acquisition unit 154. The registration information generation unit 156 may generate provider registration information in which each of a plurality of provider information is associated with the terminal ID of the communication terminal 400 for which each provider has provided data.

  The registration information storage unit 158 stores the provision source registration information generated by the registration information generation unit 156. The registration information storage unit 158 may store the provider registration information in association with the name of the provider registration information included in the generation instruction of the provider registration information.

  The designation information receiving unit 160 receives, from the communication terminal 400, designation information that designates provider registration information. The designation information may include the name of the provider registration information.

  The provision source information transmission unit 162 acquires and refers to the provision source registration information designated by the designation information received by the designation information reception unit 160 from the registration information storage unit 158. Then, the provision source information transmission unit 162 transmits the provision source information to each of the plurality of communication terminals 400 in order to display data provided by the provision sources indicated by the plurality of provision source information included in the referred to provision source registration information. Do.

  The provision source information transmission unit 162 may transmit a plurality of provision source information to the communication terminal 400 that has transmitted the designation information and the communication terminal 400 that belongs to the same terminal group as the communication terminal 400. For example, the providing source information transmitting unit 162 provides providing source information to the communication terminal 400 that has transmitted the designation information and the communication terminal 400 that has been authenticated by the same user ID as the communication terminal 400 and logged in to the information providing service 101. Send

  Among the plurality of communication terminals 400 included in the same terminal group as the communication terminal 400 that has transmitted the designation information, the providing source information transmission unit 162 has the number of communication terminals 400 in the state of logging in to the information providing service 101, If the number is smaller than the number of communication terminals 400 corresponding to the plurality of provision source information included in the provision source registration information, the plurality of provision source information may be transmitted to at least one of the communication terminals 400 in the logged-in state.

  Further, in the case where the providing source information transmission unit 162 associates a plurality of providing source information with a terminal ID, and the communication terminal 400 indicated by each terminal ID is logged in to the information providing service 101, The provider information may be transmitted to the communication terminal 400 indicated by the terminal ID associated with each of the plurality of provider information.

  In the state where at least one of the plurality of communication terminals 400 among the plurality of communication terminals 400 indicated by the terminal ID associated with each of the plurality of providing source information is not logged in to the information providing service 101 If there is, the provision source information associated with the terminal ID of the communication terminal in the non-logged-in state may be transmitted to any other communication terminal 400 among the plurality of communication terminals 400.

  Further, the providing source information transmitting unit 162 is configured to transmit data such as an icon indicating the providing source information to which the terminal ID of the communication terminal in the non-logged-in state is associated with all the other communication terminals 400. It may be transmitted to the communication terminal 400 of The communication terminal 400 that has received the data transmits a display request to the information providing apparatus 100 to display the data provided by the provider indicated by the provider information when the user designates the data. Good.

  Thus, even when the number of communication terminals 400 logging in to the information providing service 101 is smaller when the provider registration information is specified than when the provider registration information is registered, the provider All of the data provided by the provider indicated by the plurality of provider information included in the registration information can be displayed by the communication terminal 400 that has logged in.

  The inquiry output unit 164 is a terminal of the communication terminal 400 identified by the plurality of terminal IDs associated with the plurality of provision source information included in the provision source registration information when the designation information receiving unit 160 receives the designation information. When at least one of the communication terminals 400 is not logged in to the information providing service 101, inquiry information is transmitted to the communication terminal that has transmitted the designated information. The inquiry information may include contents for inquiring to which communication terminal 400 the provider information corresponding to the terminal ID of the communication terminal 400 in the non-logged-in state is to be transmitted. In addition, the inquiry information may include contents for inquiring to which communication terminal 400 it does not transmit.

  The inquiry response receiving unit 166 receives the response to the inquiry information output from the inquiry output unit 164. The providing source information transmitting unit 162 may transmit the providing source information to the plurality of communication terminals 400 in response to the response received by the inquiry response receiving unit 166.

  FIG. 9 schematically illustrates an example of the provision source registration information table 500. In the provider registration information table 500, provider registration information for each terminal group may be registered. The providing source registration information table 500 includes a main terminal field 502, a group terminal field 504, a name field 506, and a providing source information field 508.

  The main terminal field 502 contains the terminal ID of the main terminal of the terminal group. The group terminal field 504 contains the terminal ID of the group terminal of the terminal group. The group terminal field 504 may include the number of group terminals belonging to the terminal group.

  The name column 506 includes the name of the provider registration information. The provider information column 508 includes a plurality of provider information. If the group terminal field 504 includes a terminal ID, the provider information field 508 may include provider information for each terminal ID. Further, when the group terminal field 504 includes the number of group terminals, the providing source information field 508 may include providing source information for each communication terminal 400.

  In FIG. 9, provider registration information of the terminal group work name including the terminal ID: AAA001, AAA002, AAA003, AAA004, and the terminal business name of the terminal group including the two communication terminals 400: BBB001. And provider source registration information of FIG.

  When the information providing apparatus 100 receives, from the communication terminal 400 having a terminal ID of AAA001, AAA002, AAA003, or AAA004, designation information for specifying providing source registration information having a name for work, the communication having a terminal ID of AAA001 The source information indicating the file server 12 and the cloud service 52 is transmitted to the terminal 400. In the present embodiment, the cloud service 52 is located in the network 50 but may be located in the network 10.

  Further, the information providing apparatus 100 transmits providing source information indicating the mail server 14 to the communication terminal 400 whose terminal ID is AAA002. Also, the information providing apparatus 100 transmits providing source information indicating the web server 16 to the communication terminal 400 whose terminal ID is AAA003. Further, the information providing apparatus 100 transmits providing source information indicating the cloud service B to the communication terminal 400 whose terminal ID is AAA04. In the present embodiment, the cloud service 54 is located in the network 50 but may be located in the network 10.

  When the information providing apparatus 100 receives, from the communication terminal 400 whose terminal ID is BBB 001, designation information for specifying provider registration information whose name is for a business trip, the information server 100 sends the file server 12 to the communication terminal 400 whose terminal ID is BBB 001. Sending provider information indicating. In addition, the information providing apparatus 100 is the first of the plurality of communication terminals 400 that are authenticated by the same user ID as the user ID used by the communication terminal 400 whose terminal ID is BBB 001 during authentication and are logged in to the information providing service 101. The provider information indicating the mail server 14 and the cloud service 52 is transmitted to the first communication terminal 400, and the provider information indicating the web server 16 is transmitted to the second communication terminal 400.

  FIG. 10 schematically illustrates an example of the flow of processing by the information providing apparatus 100. FIG. 10 shows a flow of processing in which the information providing apparatus 100 pastes, to the communication terminal 404, data for which a copying operation has been performed in the communication terminal 402. Here, the state in which both the communication terminal 402 and the communication terminal 404 are authenticated by the same user ID and both are logged in to the information providing service 101 will be described as the start state.

  In S1002, the communication terminal 402 executes a copy operation on the data stored in the communication terminal 402. The communication terminal 402 may execute the copy operation according to the operation by the user of the communication terminal 402.

  In S1004, the communication terminal 402 transmits the data on which the copying operation has been performed to the relay device 200 in accordance with the copying operation in S1002. The communication terminal 402 may add information indicating that the data has been copied, and may transmit the data to the relay apparatus 200. The relay apparatus 200 may store the received data in association with the terminal ID of the communication terminal 402 that has transmitted the data.

  In S1006, the relay device 200 determines whether the data subjected to the copy operation has been transmitted to the relay device 200 from any of the plurality of communication terminals 400 registered in the information service 101. Check to The confirmation is performed by the relay device confirmation unit 104.

  In S1008, the relay device 200 transmits the data received in S1004 to the information providing device 100 according to the confirmation in S1006. The relay device 200 may transmit data to the information providing device 100 together with the terminal ID of the communication terminal 402.

  In S1010, the information providing apparatus 100 stores the data received in S1008. The information providing apparatus 100 may store the data in association with the terminal ID received in S1008.

  In S1012, the communication terminal 404 transmits a paste request to the relay apparatus 200. The relay apparatus 200 may store the received paste request in association with the terminal ID of the communication terminal 404 that has transmitted the paste request.

  In S1014, the information providing apparatus 100 confirms with the relay apparatus 200 whether a paste request has been sent to the relay apparatus 200 from any of the plurality of communication terminals 400 registered in the information providing service 101. The confirmation is performed by the relay device confirmation unit 104.

  In S1016, the relay apparatus 200 transmits the paste request received in S1012 to the information providing apparatus 100 in response to the confirmation in S1014. The relay apparatus 200 may transmit a paste request to the information providing apparatus 100 along with the terminal ID of the communication terminal 404.

  In S1018, in response to the paste request being received in S1016, the information providing apparatus 100 is authenticated by the same user ID as the communication terminal 404 indicated by the terminal ID received along with the paste request, and logs in to the information providing service 101. It is determined whether the data received from the communication terminal 402 is stored.

  In S1020, in response to the determination that the data is stored in S1018, the information providing apparatus 100 transmits the data stored in S1010 to the communication terminal 404. The information providing device 100 may transmit the data to the communication terminal 404 via the relay device 200.

  By the process described above, the user of the communication terminal 402 and the communication terminal 404 can easily copy the data copied in the communication terminal 402 in the same manner as copying and pasting between the communication terminal 402 and the communication terminal 404. Can be pasted into

  FIG. 11 schematically illustrates an example of the flow of processing by the information providing apparatus 100. FIG. 11 shows a flow of processing in which the information providing apparatus 100 pastes, to the communication terminal 404, data in the network 10 for which a copying operation has been performed in the communication terminal 402. Here, the state in which both the communication terminal 402 and the communication terminal 404 are authenticated by the same user ID and both are logged in to the information providing service 101 will be described as the start state.

  In S1102, the communication terminal 402 located in the network 50 transmits a browsing request for browsing data stored in the file server 12 to the information providing apparatus 100 via the relay apparatus 200. In S1104, the information providing apparatus 100 transmits a data request to the file server 12 in response to the browsing request received in S1102.

  In S1106, the file server 12 transmits data to the information providing apparatus 100 in response to the data request received in S1104. In S <b> 1108, the information providing apparatus 100 generates browsing data for causing the communication terminal 402 to display the data received from the file server 12, and transmits the generated browsing data to the communication terminal 402.

  In S1110, the communication terminal 402 detects a copy operation on the data stored in the file server 12 being displayed. In S1112, the communication terminal 402 transmits, to the relay device 200, copy notification information indicating that the copy operation has been performed on the data stored in the file server 12. The relay device 200 stores the received copy notification information.

  In S1114, the information providing apparatus 100 confirms with the relay apparatus 200 whether copy notification information has been transmitted to the relay apparatus 200 from any of the plurality of communication terminals 400 registered in the information providing service 101. The confirmation is performed by the relay device confirmation unit 104.

  In S1116, the relay apparatus 200 transmits the copy notification information received in S1112 to the information providing apparatus 100 according to the confirmation in S1114. The relay device 200 may transmit the copy notification information to the information providing device 100 together with the terminal ID of the communication terminal 402. In S1118, the information providing apparatus 100 stores link information for the data on which the copy operation indicated by the copy notification information received in S1116 is performed.

  In S1120, the communication terminal 404 located in the network 50 transmits a paste request to the relay apparatus 200. The communication terminal 404 may transmit a paste request to the relay device 200 together with the terminal ID of the communication terminal 404. The relay device 200 stores the received paste request in association with the terminal ID of the communication terminal 404.

  In S1122, the information providing apparatus 100 confirms with the relay apparatus 200 whether a paste request has been transmitted to the relay apparatus 200 from any of the plurality of communication terminals 400 registered in the information providing service 101. The confirmation is performed by the relay device confirmation unit 104.

  In S1124, the relay apparatus 200 transmits the paste request received in S1120 to the information providing apparatus 100 according to the confirmation in S1122. The relay apparatus 200 may transmit a paste request to the information providing apparatus 100 along with the terminal ID of the communication terminal 404.

  In S1126, in response to the paste request received in S1124, the information providing apparatus 100 is transmitted by the communication terminal 402 which is authenticated by the same user ID as the communication terminal 404 which has transmitted the paste request and logged in to the information providing service 101. It is determined whether link information for the data for which the copy operation indicated by the copied copy notification information has been made is stored. In S1128, in response to determining that the link information is stored in S1126, the information providing apparatus 100 transmits the link information to the communication terminal 404.

  In S1130, the communication terminal 404 transmits a data request for the file server 12 to the relay apparatus 200 using the link information received in S1128. Relay apparatus 200 stores the received data request in association with the terminal ID of communication terminal 404.

  In S1132, the information providing apparatus 100 confirms with the relay apparatus 200 whether a data request has been transmitted to the relay apparatus 200 from any of the plurality of communication terminals 400 registered in the information providing service 101. The confirmation is performed by the relay device confirmation unit 104.

  In S1134, the relay apparatus 200 transmits the data request received in S1130 to the information providing apparatus 100 according to the confirmation in S1132. The relay device 200 may transmit a data request to the information providing device 100 together with the terminal ID of the communication terminal 404.

  In S1136, the information providing apparatus 100 transmits a data download request to the file server 12 in response to the data request received in S1134. In S1138, the file server 12 transmits data to the information providing apparatus 100 in response to the download request received in S1136. In S1140, the information providing apparatus 100 transmits the data received in S1138 to the communication terminal 404.

  By the process described above, the user of the communication terminal 402 and the communication terminal 404 feels that copying and pasting between the communication terminal 402 and the communication terminal 404, the data in the file server 12 to be browsed in the communication terminal 402 is It can be easily pasted to the communication terminal 404.

  FIG. 12 schematically illustrates an example of the flow of processing by the information providing device 100. FIG. 12 shows a flow of processing in which the information providing apparatus 100 pastes, in the network 10, data in the network 10 for which a copying operation has been performed in the communication terminal 402, in response to a paste request from the communication terminal 404. Here, the state in which both the communication terminal 402 and the communication terminal 404 are authenticated by the same user ID and both are logged in to the information providing service 101 will be described as the start state.

  In S1202, the communication terminal 402 located in the network 50 transmits a browsing request for browsing data stored in the mail server 14 to the information providing apparatus 100 via the relay apparatus 200. In S1204, the information providing apparatus 100 transmits a data request to the mail server 14 in response to the browsing request received in S1202.

  In S1206, the mail server 14 transmits data to the information providing apparatus 100 in response to the data request received in S1204. In S1208, the information providing apparatus 100 generates browsing data for causing the communication terminal 402 to display the data received from the mail server 14, and transmits the generated browsing data to the communication terminal 402.

  In S1210, the communication terminal 404 located in the network 50 transmits a browsing request for browsing data stored in the file server 12 to the information providing apparatus 100 via the relay apparatus 200. In S1212, the information providing apparatus 100 transmits a data request to the file server 12 in response to the browse request received in S1210.

  In S1214, the file server 12 transmits data to the information providing apparatus 100 in response to the data request received in S1212. In S1216, the information providing apparatus 100 generates browsing data for causing the communication terminal 402 to display the data received from the file server 12, and transmits the generated browsing data to the communication terminal 402.

  In S1218, the communication terminal 402 detects a copy operation on the data stored by the mail server 14 being displayed. In S1220, the communication terminal 402 transmits, to the relay device 200, copy notification information indicating that the copy operation has been performed on the data stored in the mail server 14. The relay device 200 stores the received copy notification information.

  In S1224, the information providing apparatus 100 confirms with the relay apparatus 200 whether copy notification information has been transmitted to the relay apparatus 200 from any of the plurality of communication terminals 400 registered in the information providing service 101. The confirmation is performed by the relay device confirmation unit 104.

  In S1226, the relay apparatus 200 transmits the copy notification information received in S1220 to the information providing apparatus 100 in response to the confirmation in S1224. The relay device 200 may transmit the copy notification information to the information providing device 100 together with the terminal ID of the communication terminal 402.

  In S1228, the information providing apparatus 100 transmits, to the mail server 14, a download request for downloading the data on which the copy operation indicated by the copy notification information received in S1226 has been made. In S1230, the mail server 14 transmits data to the information providing apparatus 100 in response to the download request received in S1228. In S1232, the information providing apparatus 100 stores the data received in S1230.

  In S1234, the communication terminal 404 transmits a paste request to the relay apparatus 200. The communication terminal 404 may transmit a paste request to the relay device 200 together with the terminal ID of the communication terminal 404. The relay device 200 stores the received paste request in association with the terminal ID of the communication terminal 404.

  In S1236, the information providing apparatus 100 confirms with the relay apparatus 200 whether a paste request has been transmitted to the relay apparatus 200 from any of the plurality of communication terminals 400 registered in the information providing service 101. The confirmation is performed by the relay device confirmation unit 104.

  In S1238, the relay device 200 transmits a paste request to the information providing device 100 according to the confirmation in S1236. The relay apparatus 200 may transmit a paste request to the information providing apparatus 100 along with the terminal ID of the communication terminal 404.

  In S1240, the information providing apparatus 100 is transmitted by the communication terminal 402 that has been logged in by the 101th panel authenticated by the same user ID as the communication terminal 404 that has transmitted the paste request in response to the paste request received in S1238. It is determined whether data for which a copy operation indicated by copy notification information has been made is stored.

  In S1242, in response to determining that the data is stored in S1240, the information providing apparatus 100 transmits the data to the file server 12. The file server 12 stores the received data in association with the terminal ID of the communication terminal 404.

  By the process described above, the user of the communication terminal 402 and the communication terminal 404 feels that copying and pasting between the communication terminal 402 and the communication terminal 404, the data in the mail server 14 to be browsed in the communication terminal 402 is The communication terminal 404 can easily paste it to the file server 12 browsing data.

  FIG. 13 schematically illustrates an example of a functional configuration of the copy data processing unit 170. The copy data processing unit 170 includes a copy data reception unit 172, a copy data storage unit 174, a paste request reception unit 176, a data determination unit 178, a data transmission unit 180, a copy notification information reception unit 182, a link information storage unit 184, and link information. A determination unit 186, a link information transmission unit 188, a download request reception unit 190, a data acquisition unit 192, a history storage unit 194, a history transmission unit 196, and a designation reception unit 198 are provided. Note that the copy data processing unit 170 is not necessarily required to have all these configurations.

  The copy data receiving unit 172 receives, from the communication terminal 400 logging in to the information providing service 101, the copy data for which the copying operation has been performed in the communication terminal 400. The copy data may be text data, voice data, image data, an electronic file or the like.

  The copy data storage unit 174 stores the copy data received by the copy data receiving unit 172. The copy data storage unit 174 may store copy data in association with the terminal ID of the communication terminal 400 that has transmitted the copy data. The copy data storage unit 174 may measure an elapsed time after the copy data reception unit 172 receives the copy data. Then, the copy data storage unit 174 may delete the data when a predetermined time has elapsed since the copy data reception unit 172 receives the copy data. This can reduce the possibility of data leakage and improve security.

  The paste request receiving unit 176 receives a paste request from the communication terminal 400 logged in to the information providing service 101. When the paste request reception unit 176 receives a paste request, the data determination unit 178 is authenticated by the same user ID as the communication terminal 400 that has transmitted the paste request, and logs in to the information providing service 101 with the communication terminal 400. It is determined whether copy data received from the existing communication terminal 400 is stored in the copy data storage unit 174.

  The data transmission unit 180 transmits the copy data stored in the copy data storage unit 174 to the communication terminal 400 that has transmitted the paste request, in response to the paste request received by the paste request reception unit 176. When the data determination unit 178 determines that the copy data is stored in the copy data storage unit 174, the data transmission unit 180 may transmit the copy data to the communication terminal 400 that has transmitted the paste request. .

  The copy notification information receiving unit 182 displays copy notification information indicating that a copy operation has been performed on data in the network 10 in the communication terminal 400 located in the network 50 and logging in to the information providing service 101. It receives from the communication terminal 400.

  The link information storage unit 184 stores link information for data indicating that a copy operation has been performed according to the copy notification information received by the copy notification information receiving unit 182. The link information storage unit 184 may store link information in association with the terminal ID of the communication terminal 400 that has transmitted the copy notification information.

  When the paste request reception unit 176 receives a paste request, the link information determination unit 186 is authenticated by the same user ID as the communication terminal 400 that has transmitted the paste request, and logs in to the information providing service 101 together with the communication terminal 400. It is determined whether link information for data for which a copy operation indicated by copy notification information received from the communication terminal 400 has been made is stored in the link information storage unit 184 or not.

  The link information transmission unit 188 transmits the link information stored in the link information storage unit 184 to the communication terminal 400 that has transmitted the paste request in response to the paste request reception unit 176 receiving the paste request. When the link information determination unit 186 determines that the link information is stored in the link information storage unit 184, the link information transmission unit 188 may transmit the link information to the communication terminal 404.

  The download request receiving unit 190 receives a download request for data in the network 10 from the communication terminal 400. When the download request receiving unit 190 receives a download request, the data acquisition unit 192 acquires requested data from a server or the like in the network 10. The data transmission unit 180 may transmit the data acquired by the data acquisition unit 192 to the communication terminal 400 that has transmitted the download request. The data transmission unit 180 and the data acquisition unit 192 may be an example of a storage control unit.

  The history storage unit 194 stores the history of data that has been copied by the communication terminal 400 and received by the copy data reception unit 172. The history storage unit 194 may store the history of the data for a predetermined period. The history storage unit 194 may delete the history when a predetermined time period has elapsed since the history of the data is stored.

  Further, the history storage unit 194 may store a history of data indicating that the copy notification information received by the copy notification information receiving unit 182 indicates that a copy operation has been performed. The history storage unit 194 may store the history of the data for a predetermined period. The history storage unit 194 may delete the history when a predetermined time period has elapsed since the history of the data is stored.

  When the paste request reception unit 176 receives a paste request from the communication terminal 400, the history transmission unit 196 transmits the history stored in the history storage unit 194 to the communication terminal 400. The communication terminal 400 may display and output the history received from the history transmission unit 196. For example, when a history of three data is included in the history stored in the history storage unit 194, the communication terminal 400 displays and outputs the history indicating the three data.

  The designation reception unit 198 receives designation of data for the history transmitted by the history transmission unit 196. For example, when the history transmitted by the history transmission unit 196 includes the history of three data, designation of any one of the three data is received from the communication terminal 400. Specification of data for the history may be performed by the user of the communication terminal 400.

  The data transmission unit 180 may transmit the designated data to the communication terminal 400 that has transmitted the designation of the data, in response to the designation reception unit 198 having accepted the designation of the data for the history. Further, the link information transmission unit 188 transmits, to the communication terminal 400 that has transmitted the designation of the data, the link information corresponding to the designated data in response to the designation reception unit 198 having accepted the designation of the data for the history. May be sent.

  FIG. 14 schematically illustrates an example of the flow of processing by the relay device 200. FIG. 14 shows a flow of processing in which the relay device 200 pastes the data on which the copying operation has been performed in the communication terminal 402 to the communication terminal 404. Here, the state in which both the communication terminal 402 and the communication terminal 404 are authenticated by the same user ID and both are logged in to the information providing service 101 will be described as the start state.

  In S1402, the communication terminal 402 executes a copy operation on the data stored in the communication terminal 402. The communication terminal 402 may execute the copy operation according to the operation by the user of the communication terminal 402.

  In S1404, the communication terminal 402 transmits the data on which the copying operation has been performed to the relay device 200 in accordance with the copying operation in S1402. The communication terminal 402 may add information indicating that the data has been copied, and may transmit the data to the relay apparatus 200.

  At S1406, the relay device 200 stores the data received at S1404. The relay apparatus 200 may store the received data in association with the terminal ID of the communication terminal 402 that has transmitted the data.

  In S1408, the communication terminal 404 transmits a paste request to the relay apparatus 200. The communication terminal 404 may transmit a paste request to the relay device 200 together with the terminal ID of the communication terminal 404.

  In S1410, in response to the paste request received in S1408, communication in which the relay device 200 is authenticated by the same user ID as the communication terminal 404 indicated by the terminal ID received with the paste request and logs in to the information providing service 101 It is determined whether the data received from the terminal 402 is stored.

  In S1412, the relay apparatus 200 transmits the data stored in S1406 to the communication terminal 404 in response to the determination that the data is stored in S1410.

  By the process described above, copy and paste via the relay device 200 can be realized between the communication terminal 402 and the communication terminal 404.

  FIG. 15 schematically illustrates an example of a functional configuration of the copy data processing unit 210 included in the relay device 200. The copy data processing unit 210 includes a copy data reception unit 212, a copy data storage unit 214, a paste request reception unit 216, a data determination unit 218, and a data transmission unit 220.

  The copy data receiving unit 212 receives, from the communication terminal 400, data on which a copying operation has been performed in the communication terminal 400. The copy data storage unit 214 stores the data received by the copy data receiving unit 212. The copy data storage unit 214 may store the data in association with the terminal ID of the communication terminal 400 that has transmitted the data.

  The paste request reception unit 216 receives a paste request from the communication terminal 400. In response to the paste request reception unit 216 receiving the paste request, the data determination unit 218 authenticates the user with the same user ID as the communication terminal 400 that has transmitted the paste request, and logs in to the information providing service 101. It is determined whether the data received from the terminal 400 is stored in the copy data storage unit 214.

  The data transmission unit 220 is a copy data storage unit in which data received from the communication terminal 400 authenticated by the same user ID as the communication terminal 400 that has transmitted the paste request by the data judgment unit 218 and logged in to the information providing service 101 If it is determined that the data is stored in 214, the data is transmitted to the communication terminal 400 that has transmitted the paste request.

  FIG. 16 schematically illustrates an example of a functional configuration of the communication terminal 400. The communication terminal 400 includes a communication unit 412, a data storage unit 414, a display unit 416, and an operation unit 418.

  The communication unit 412 executes communication via the network 50. Communication terminal 400 can be located in network 10, and when communication terminal 400 is located in network 10, communication unit 412 executes communication via network 10.

  The data storage unit 414 stores various data. The data storage unit 414 may store data received by the communication unit 412. The communication unit 412 may transmit the data stored in the data storage unit 414.

  The display unit 416 displays the data stored in the data storage unit 414. The display unit 416 may be a touch panel display.

  The operation unit 418 receives an operation from the user. For example, the operation unit 418 receives a touch operation on the display unit 416 which is a touch panel display. Further, the operation unit 418 receives, for example, an operation on an input unit such as a button and a key provided in the communication terminal 400.

  The operation unit 418 may receive a copy operation on data displayed by the display unit 416. For example, when the data displayed on the display unit 416 is selected via the operation unit 418, the display unit 416 displays a menu for the selected data. The menu contains a copy. Then, the operation unit 418 receives the selection of the copy included in the menu as a copy operation for the data.

  Further, when an arbitrary position in the display area of the display unit 416 is selected via the operation unit 418, the communication unit 412 may transmit a paste request to the relay device 200. When the communication unit 412 transmits a paste request to the relay device 200, the display unit 416 displays a menu including paste, when receiving notification from the relay device 200 that data to be pasted is present. You may Then, when the operation unit 418 receives the selection of the paste included in the menu, the communication unit 412 may receive data to be a target of the paste from the relay device 200 and store the data in the data storage unit 414.

  FIG. 17 schematically illustrates a display example by the communication terminal 400. FIG. 17 shows that “copying for pasting the display unit 416 to the outside of the communication terminal 400 in response to detection of a touch operation on the data icon 420 displayed on the display unit 416 is performed. An example is shown in which a menu 430 including “server” and “copy (terminal)” indicating a copy for pasting inside the communication terminal 400 is displayed.

  When the data indicated by the data icon 420 is data in the communication terminal 400 and “copy (server)” is selected, the communication unit 412 sets the data as the data subjected to the copy operation as the relay device 200. May be transmitted to the information providing apparatus 100 via When the data indicated by the data icon 420 is data in the network 10 and “copy (server)” is selected, the communication unit 412 performs a copy operation on the data in the network 10. The copy notification information indicating the event may be transmitted to the information providing apparatus 100 via the relay apparatus 200. When “copy (terminal)” is selected, the communication terminal 400 may copy the data indicated by the data icon 420 to the clipboard.

  Although the case where the menu 430 including “copy (server)” and “copy (terminal)” is displayed is described here as an example, the present invention is not limited to this. Communication terminal 400 may display menu 430 including one copy in response to detection of a touch operation on data icon 420. When the one copy is selected, the communication terminal 400 may transmit the data indicated by the data icon 420 or the copy notification information to the information providing apparatus 100 and store the data in the clipboard. Further, when the one copy is selected, the communication terminal 400 may transmit the data or the copy notification information to the information providing apparatus 100 without storing the data indicated by the data icon 420 in the clipboard. .

  FIG. 18 schematically illustrates a display example by the communication terminal 400. 18 shows “paste (server)” indicating that the display unit 416 is a paste for pasting data received from the outside of the communication terminal 400 in response to detection of a touch operation on the display unit 416. The example which displayed the menu 440 containing "paste (terminal)" which shows that it is a paste for pasting the data inside the communication terminal 400 is shown.

  When “paste (server)” is selected, the communication terminal 400 may paste data received from the information providing device 100 via the relay device 200. When “paste (terminal)” is selected, the communication terminal 400 may paste the data stored in the clipboard of the communication terminal 400.

  Although the information providing apparatus 100 has been described as an example of the communication system in the above embodiment, the present invention is not limited to this. The communication system may include the information providing device 100 and the relay device 200. Further, the communication system may include the information providing device 100 and the management device 300. Further, the communication system may include the information providing device 100, the relay device 200, and the management device 300.

  Further, in the above embodiment, the information providing device 100 establishes the communication connection with the communication terminal 400 via the relay device 200 and transmits / receives data to / from the communication terminal 400 via the relay device 200. But it is not limited to this. The information providing device 100 may establish a communication connection with the communication terminal 400 via the relay device 200, and transmit / receive data to / from the communication terminal 400 without via the relay device 200.

  Moreover, although the case where the relay apparatus 200 and the management apparatus 300 were separate bodies was mentioned as the example and demonstrated in the said embodiment, it does not restrict to this. The relay device 200 and the management device 300 may be integrated, and for example, the relay device 200 may have the function of the management device 300.

  In the above description, each unit of the information providing apparatus 100, the relay apparatus 200, the management apparatus 300, and the communication terminal 400 may be realized by hardware or may be realized by software. Also, it may be realized by a combination of hardware and software. In addition, the computer may function as any of the information providing device 100, the relay device 200, the management device 300, and the communication terminal 400 by executing the program. The program may be installed from a computer readable medium or a storage device connected to a network to a computer constituting at least a part of any of the information providing device 100, the relay device 200, the management device 300 and the communication terminal 400. .

  A program that is installed in a computer and causes the computer to function as any of the information providing device 100, the relay device 200, the management device 300, and the communication terminal 400 according to the present embodiment acts on a CPU or the like to operate the computer. And each function as any part of the relay device 200, the management device 300, and the communication terminal 400. The information processing described in these programs is read by a computer, and the software and the hardware resources of any of the information providing apparatus 100, the relay apparatus 200, the management apparatus 300, and the communication terminal 400 cooperate with each other. It functions as a concrete means.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It is apparent to those skilled in the art that various changes or modifications can be added to the above embodiment. It is also apparent from the scope of the claims that the embodiments added with such alterations or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps and steps in the devices, systems, programs and methods shown in the claims, the specification and the drawings is as follows. It is to be noted that “it can be realized in an arbitrary order unless it is explicitly stated as“ etc. ”and the output of the previous process is not used in the later process. With regard to the flow of operations in the claims, the specification and the drawings, even if it is described using “first,” “next,” etc. for the sake of convenience, it means that it is essential to carry out in this order. It is not a thing.

Reference Signs List 10 network 12 file server 14 mail server 16 web server 20 router 50 network 100 information providing apparatus 101 information providing service 102 authentication information storage unit 103 terminal authentication unit 104 relay apparatus confirmation unit 105 communication Connection establishment unit 106 Content management unit 107 Content provision unit 110 Token authentication unit 112 Key data request reception unit 114 Key data generation unit 116 Authentication data generation unit 118 Encryption unit 120 Authentication data storage unit , 122 key data transmission unit, 124 authentication data transmission unit, 126 key data reception unit, 128 key authentication possibility determination unit, 130 token transmission unit, 132 ID reception unit, 134 authentication possibility determination unit, 136 communication connection establishment unit, 138 Terminal group registration unit, 150 Provision source information processing unit, 152 generation instruction reception unit, 154 provision source information acquisition unit, 156 registration information generation unit, 158 registration information storage unit, 160 specification information reception unit, 162 provision source information transmission unit, 164 inquiry output unit, 166 inquiry response reception unit, 170 copy data processing unit, 172 copy data reception unit, 174 copy data storage unit, 176 paste request reception unit, 178 data determination unit, 180 data transmission unit, 182 copy notification information reception unit, 184 link Information storage unit 186 link information determination unit 188 link information transmission unit 190 download request reception unit 192 data acquisition unit 194 history storage unit 196 history transmission unit 198 specification reception unit 200 relay device 210 copy data processing Part 212 Copy data receiving part 214 Copy data Delivery unit 216 paste request receiving unit 218 data determination unit 220 data transmission unit 300 management device 302 authentication data reception unit 304 authentication data storage unit 306 terminal request reception unit 308 key acquisition instruction transmission unit 310 key data reception unit, 312 key authentication possibility determination unit, 314 key data transmission unit, 316 token reception unit, 318 ID transmission unit, 400 communication terminal, 402 communication terminal, 404 communication terminal, 406 communication terminal, 412 communication unit, 414 Data storage unit 416 display unit 418 operation unit 420 data icon 430 menu 440 menu 500 provider registration information table 502 main terminal field 504 group terminal field 506 name field 508 provider information field

Claims (12)

A terminal authentication unit that authenticates each of the first communication terminal and the second communication terminal with the same user ID, and maintains a state in which both the first communication terminal and the second communication terminal log in to the information providing service; ,
A data receiving unit configured to receive, from the first communication terminal logging in to the information providing service, data on which a copying operation has been performed in the first communication terminal;
A paste request receiving unit that receives a paste request from the second communication terminal logged in to the information providing service;
A data transmission unit that transmits the data to the second communication terminal in response to the paste request ;
A history storage unit for storing a history of data subjected to a copy operation in the first communication terminal, received by the data reception unit;
When the paste request receiving unit receives the paste request from the second communication terminal, the history including the plurality of data on which the copy operation has been performed in the first communication terminal is stored in the history storage unit. A history transmission unit for transmitting to the second communication terminal;
A designation receiving unit configured to receive, from the second communication terminal, designation of any one of a plurality of data included in the history with respect to the history transmitted by the history transmitting unit;
And further
The communication system , wherein the data transmission unit transmits designated data to the second communication terminal in response to the designation reception unit accepting designation of data for the history . A data storage unit for storing the data received by the data reception unit;
When the paste request receiving unit receives the paste request from the second communication terminal, the first communication terminal is authenticated by the same user ID as the second communication terminal and logged in to the information providing service A data determination unit that determines whether the received data is stored in the data storage unit;
The communication system according to claim 1, wherein the data transmission unit transmits the data to the second communication terminal when it is determined that the data is stored in the data storage unit.   The communication system according to claim 2, wherein the data storage unit deletes the data in response to passage of a predetermined time after storing the data received by the data reception unit. The information providing apparatus is located in a second network in which access from the first network is limited, and includes the data receiving unit, the paste request receiving unit, and the data transmitting unit.
The data receiving unit receives the data from the first communication terminal located in the first network via a relay device located in the first network,
The paste request receiving unit receives the paste request from the second communication terminal located in the first network via the relay device,
The communication system according to any one of claims 1 to 3 , wherein the data transmission unit transmits the data to the second communication terminal via the relay device. The information providing device is
The system further includes a paste request confirmation unit that confirms whether the relay device has received the paste request by intermittently inquiring the relay device.
The communication system according to claim 4 , wherein the paste request receiving unit receives the paste request from the relay device when the paste request confirmation unit confirms that the relay device has received the paste request. A terminal authentication unit that authenticates each of the first communication terminal and the second communication terminal with the same user ID, and maintains a state in which both the first communication terminal and the second communication terminal log in to the information providing service; ,
Copy notification information for receiving copy notification information indicating that a copy operation has been performed on data in the second network at the first communication terminal located in the first network and logged in to the information providing service A receiver,
A link information storage unit that stores link information for the data;
A paste request receiving unit for receiving a paste request from the second communication terminal located in the first network and logging in to the information providing service;
A link information transmission unit that transmits the link information to the second communication terminal in response to the paste request;
A history storage unit for storing a history of data indicating that the copy notification information received by the copy notification information receiving unit indicates that a copy operation has been performed;
When the paste request receiving unit receives the paste request from the second communication terminal, a plurality of pieces of data stored in the history storage unit indicate that the copy operation has been performed. A history transmitting unit that transmits the history including the above to the second communication terminal;
A designation receiving unit configured to receive, from the second communication terminal, designation of any one of a plurality of data included in the history with respect to the history transmitted by the history transmitting unit;
And further
The communication system, wherein the link information transmission unit transmits link information corresponding to designated data to the second communication terminal in response to the designation reception unit accepting designation of data for the history . When the paste request reception unit receives the paste request, it is determined whether link information for the data indicated by the copy notification information and for which the copy operation has been performed is stored in the link information storage unit Further comprising a judgment unit,
The communication system according to claim 6 , wherein the link information transmission unit transmits the link information to the second communication terminal when it is determined that the link information is stored in the link information storage unit. The information providing apparatus is located in the second network, and includes the terminal authentication unit, the copy notification information reception unit, the link information storage unit, the paste request reception unit, and the link information transmission unit.
The second network is restricted in access from the first network,
The copy notification information receiving unit receives the copy notification information from the first communication terminal via a relay device located in the first network,
The paste request receiving unit receives the paste request from the second communication terminal via the relay device,
The link information transmitting unit via the relay device transmits the link information to the second communication terminal, a communication system according to claim 6 or 7. The information providing device is
The system further includes a paste request confirmation unit that confirms whether the relay device has received the paste request by intermittently inquiring the relay device.
9. The communication system according to claim 8 , wherein the paste request reception unit receives the paste request from the relay device when the paste request confirmation unit confirms that the relay device has received the paste request. . A terminal authentication unit that authenticates each of the first communication terminal and the second communication terminal with the same user ID, and maintains a state in which both the first communication terminal and the second communication terminal log in to the information providing service; ,
In the first communication terminal located in the first network and logging in to the information providing service, a copy operation is performed on data stored in the first data storage device located in the second network A copy notification information receiving unit that receives copy notification information indicating
A paste request receiving unit for receiving a paste request for the second data storage device located in the second network from the second communication terminal located in the first network and logging in to the information providing service;
A storage control unit that causes the second data storage device to store the data in response to the paste request receiving unit receiving the paste request ;
A history storage unit for storing a history of data indicating that the copy notification information received by the copy notification information receiving unit indicates that a copy operation has been performed;
When the paste request receiving unit receives the paste request from the second communication terminal, a plurality of pieces of data stored in the history storage unit indicate that the copy operation has been performed. A history transmitting unit that transmits the history including the above to the second communication terminal;
A designation receiving unit configured to receive, from the second communication terminal, designation of any one of a plurality of data included in the history with respect to the history transmitted by the history transmitting unit;
And further
The communication system , wherein the storage control unit causes the second data storage device to store designated data in response to the designation reception unit accepting designation of data for the history . The storage control unit
A data acquisition unit that acquires, from the first data storage device, data on which the copy operation indicated by the copy notification information has been made;
11. The communication according to claim 10 , further comprising: a data transmission unit that transmits the data acquired by the data acquisition unit to the second data storage device in response to the paste request reception unit receiving the paste request. system. A program for a computer to function as a communication system according to any one of claims 1 to 11.

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