基本信息:
- 专利标题： 그룹 키 업데이트 방법 및 이를 이용한 그룹 키 업데이트장치
- 专利标题（英）：Method of updating group key and group key update device using the same
- 专利标题（中）：组密钥更新方法和使用它的组密钥更新设备
- 申请号：KR1020060094324 申请日：2006-09-27
- 公开(公告)号：KR101223499B1 公开(公告)日：2013-01-18
- 发明人： 김대엽 , 허미숙 , 정태철 , 김환준
- 申请人： 삼성전자주식회사
- 申请人地址： ***, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea
- 专利权人： 삼성전자주식회사
- 当前专利权人： 삼성전자주식회사
- 当前专利权人地址： ***, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea
- 代理人： 특허법인 무한
- 主分类号： H04L9/14
- IPC分类号： H04L9/14 ; H04L9/28
그룹 키, 키 업데이트, 단방향 함수, 일괄 처리
The binary tree (binary tree) to update the key of the group corresponding to the group to the group key update methods and apparatus. One method group key update according to an embodiment of the present invention, updating the keys of at least two leaf nodes in response to the new members join (join) of which correspond to the new member (leaf node) for the group, the leaf it as to update the key of one node of the ancestor nodes of the (parent node), and determining whether or not both child nodes of the ancestor node update, the two child nodes, the two above when all updated child of the node, using a step, and used to update the node updates the node set to 7 it characterized in that it comprises a step for updating the key of the ancestor nodes. Therefore, it is possible to efficiently perform group key updates to the multi-subscription. Group key, key updates, one-way function, batch
公开/授权文献:
- KR1020080028696A 그룹 키 업데이트 방법 및 이를 이용한 그룹 키 업데이트장치 公开/授权日：2008-04-01
信息查询:
EspacenetIPC结构图谱:
| H | 电学 |
| --H04 | 电通信技术 |
| ----H04L | 数字信息的传输，例如电报通信 |
| ------H04L9/00 | 保密或安全通信装置 |
| --------H04L9/14 | .使用多个密钥或算法 |