Communication device that receives external device information from an external device using near field communication

A system comprising an external device, a communication device, and a server,

• wherein said external device includes:
• a first antenna unit for Near Field Communication (NFC) with said communication device;
• and
• a modulation and demodulation unit configured to communicate with said communication device via said first antenna unit to transmit external device information indicating information of said external device to said communication device,
• wherein said communication device transmits the external device information to said server via a network, the external device information being received from said external device by using the NFC, said communication device including:
• a second antenna unit for the NFC with said external device;
• an NFC unit configured to (i) perform polling to the external device via said antenna unit, (ii) receive a response to the polling from the external device by using the NFC, and (iii) communicate with the external device after receiving the response so as to receive, from the external device, the external device information, which is stored in the external device;
• an external device storage unit configured to store the external device information received by said NFC unit;
• a registration information generation unit configured to generate registration information including (a) the external device information and (b) communication device information, the registration information being information to be registered in a database in the server and associating (a) the external device information and (b) the communication device information, (a) the external device information including identification information for identifying the external device, being encrypted by first encryption that the server can decrypt, and being stored in the external device storage unit, and (b) communication device information including communication device identification information for identifying said communication device;
• an encryption unit configured to encrypt the registration information by second encryption that the server can decrypt, the registration information being generated by said registration information generation unit, and the second encryption being different from the first encryption;
• an access control information generation unit configured to generate access control information for accessing the server from (a) the registration information encrypted by said encryption unit using the second encryption and (b) access information including address information of the server;
• a server communication unit configured to register the registration information into a database in the server by accessing the server via the network based on the access control information generated by said access control information generation unit;
• a receiving unit configured to receive a touch operation by which the external device touches said communication device;
• and
• a control unit configured to (i) control said NFC unit to receive the external device information while said receiving unit is receiving the touch operation and (ii) control said server communication unit to register the registration information into the database after said receiving unit has received the touch operation, the registration information being generated by said registration information generation unit based on the external device information and encrypted by the second encryption by said encryption unit, and
• wherein said server includes:
• a communication unit configured to receive the registration information from said communication device via the network;
• and
• the database in which the registration information received from said communication unit is registered.