Abstract text

A communication device includes an antenna for transmitting and receiving signals with a reader/writer of a service issuing terminal; a recording unit recorded with data, and also recorded with a pattern in which information specifying an authentication key and access attribute indicating whether or not a readout process or a write process on the data is possible using the authentication key are corresponded; and a control unit for, when receiving one or plural information specifying a region of the data from the reader/writer of the service issuing terminal via the antenna, holding the received one or plural information specifying the region of the data.