发明名称 |
Method and apparatus for secure contents transfer and copyright protection |
摘要 |
<p>In an information processing system in which a range of information transfer between communication devices through a network is limited within a prescribed range by registering unique information obtainable within the prescribed range into each device and permitting information transfer between devices which share common unique information, where the unique Information is formed by a pair of a public unique information and a secret unique information, a bridge device is controlled such that, upon receiving a proxy check request from a reception device, whether a transmission device is another bridge device or not is judged when the public unique information registered by the reception device is registered in the bridge device and one public unique information registered in the bridge device is registered by the transmission device. Then, the secret unique Information registered by the reception device is transmitted to the transmission device when the transmission device is not another bridge device. <IMAGE></p> |
申请公布号 |
EP1571804(B1) |
申请公布日期 |
2007.04.25 |
申请号 |
EP20050251314 |
申请日期 |
2005.03.04 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
ISOZAKI, HIROSHI;SAITO, TAKESHI;MATSUSHITA, TATSUYUKI;KAMIBAYASHI, TOORU |
分类号 |
G06F21/24;H04L29/06;G06F12/14;G06F13/00;G06F21/10;G06F21/62;G06Q30/06;G06Q50/00;G06Q50/10;H04L9/32;H04L12/28;H04Q7/38 |
主分类号 |
G06F21/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|