DATA TRANSMISSION DEVICE, DATA RECEPTION DEVICE, AND DATA TRANSFER SYSTEM

摘要

Provided are a data transmission device, a data reception device, and a data transfer system capable of surely moving data in the MOVE process of data between a data transmission device and a data reception device while eliminating the state that data in the usable state exists in a plurality of devices. The data transmission device (101) includes a synchronization control unit (405) for synchronizing the timing of deleting or disabling the data to be moved in the data transmission device (101) with the timing of decryption of the encrypted data as a movement object in the data reception device (102). This prevents the state that a plurality of data in the usable state exist.