| 摘要 |
PURPOSE: To provide data terminal equipment for promoting distribution of contents data, which are to be deleted when transmitting acquired contents data to the other device, while protecting the CONSTITUTION: In a portable telephone set 100, a controller 1022 stores contents data received from a distributing server in a memory 1024. When contents data are transmitted to a memory card 110, a random key generating part 1032 generates a license key and in a cipher processing part 1034, the contents data are enciphered with the license key. The controller 1022 transmits the enciphered contents data via a memory card interface 1026 to the memory card 110. Then, the controller 1022 deletes the contents data which have been stored in the memory 1024.
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