| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a data transfer device that can prevent a sense of incongruity due to a lag in decoding timing between connected pieces of equipment. <P>SOLUTION: A DVD player 100 comprises a content reproduction processing part 102 for sending data of encrypted content to a plurality of pieces of equipment, and an authentication control part 101 for executing authentication processing for each of the plurality of pieces of equipment and, after the authentication processing, sending key information for decrypting the content to the plurality of pieces of equipment. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
