Patent ID: 8356170

Claim:
A management-apparatus card capable of being physically attached to a management apparatus and being physically attached to a measuring apparatus, the management apparatus receiving encrypted vital sign data from the measuring apparatus and managing the received encrypted vital sign data, the measuring apparatus measuring vital sign data of a user of the measuring apparatus and encrypting the vital sign data using an encryption key, said management-apparatus card comprising: an interface unit configured to receive, from the measuring apparatus, first unique information identifying the measuring apparatus, and identification information indentifying the user of the measuring apparatus; a first storage unit configured to store second unique information identifying said management-apparatus card; a generation unit configured to generate a decryption key corresponding to the encryption key, the decryption key being generated using the first unique information, the second unique information, and the identification information; a second storage unit configured to store the generated decryption key; and a control unit configured to: receive the encrypted vital sign data from the measuring apparatus; decrypt the received vital sign data using the stored decryption key; and obtain the decrypted vital sign data, wherein said management-apparatus card is a portable IC card, and wherein said interface unit is configured to receive, when said management-apparatus card is physically attached to the measuring apparatus, the first unique information and the identification information from the measuring apparatus.