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    • 2. 发明授权
    • 데이터 관리 방법 및 이를 이용한 클라우드 서비스 시스템
    • 数据管理方法和使用该方法的云服务系统
    • KR101412673B1
    • 2014-07-01
    • KR1020120156173
    • 2012-12-28
    • 동국대학교 경주캠퍼스 산학협력단
    • 송유진
    • G06F21/62G06F21/30G06F15/16
    • H04L63/0442H04L9/14H04L63/064
    • Disclosed are a data management method and a cloud service system using the same capable of controlling data reading with a prosumer. As the data management method, a route public key PKR about information M of a user B is provided from a second terminal to a central server to be open to a user A through a first terminal. A cryptogram E_PKR(M) coded from the information M by the route public key PKR is provided from the second terminal to the central server. A reading request R of the information M is provided from the first terminal to the second terminal. If the second terminal permits the reading request R, a class key SBK to decode at least part of the cryptogram E_PKR(M) is provided from the second terminal to the first terminal. The second terminal extracts the information M by decoding the cryptogram E-PKR(M) provided from the central server into the class key SBK. Therefore, the user B producing the information M can directly manage whether to permit a data reading to the user A by hierarchically dividing the permission.
    • 公开了一种数据管理方法和使用该数据管理方法的云服务系统,其能够利用消费者控制数据读取。 作为数据管理方法,从第二终端向中央服务器提供关于用户B的信息M的路由公钥PKR,以通过第一终端向用户A开放。 从第二终端向中央服务器提供从信息M通过路由公钥PKR编码的密码E_PKR(M)。 信息M的读取请求R从第一终端提供给第二终端。 如果第二终端允许读取请求R,则从第二终端向第一终端提供解密密码E_PKR(M)的至少一部分的类密钥SBK。 第二终端通过将从中央服务器提供的密码E-PKR(M)解码为类密钥SBK来提取信息M. 因此,产生信息M的用户B可以通过分级地分配许可来直接管理是否允许对用户A的数据读取。
    • 7. 发明公开
    • 계층 구조를 갖는 무선 센서 네트워크에서 통신량에 따른 키 갱신 방법
    • 基于无线传感器网络层次结构通信量的密钥更新方法
    • KR1020120062480A
    • 2012-06-14
    • KR1020100123759
    • 2010-12-06
    • 광주과학기술원
    • 이새움김기선이지훈성윤동
    • H04L9/16
    • H04L63/064H04L9/0869H04L9/0891H04L63/102H04L63/105H04L67/12H04L2209/805H04W12/04H04W84/18
    • PURPOSE: A key updating method according to communication traffics in a wireless sensor network having a hierarchy structure is provided to improve security in a wireless sensor network by updating a symmetric key used through a representation node and an administrator node at a constant cycle. CONSTITUTION: An administrator node(100) sets a group. The administrator node selects one node from general nodes(300) belonging within the group as representation nodes(200,200') of a corresponding group. The representation node transmits information to the administrator node by accumulating the information within the group. The representation node directly transmits the information to the administrator node. The representation node transfers the information to the administrator node by transmitting data to another representation node having a minimum distance and the administrator node in a disabled direct communication state between the representation node and the administrator node.
    • 目的:提供具有层次结构的无线传感器网络中根据通信业务的密钥更新方法,以通过以恒定周期更新通过表示节点和管理员节点使用的对称密钥来提高无线传感器网络中的安全性。 构成:管理员节点(100)设置组。 管理员节点从属于组内的一般节点(300)中选择一个节点作为对应组的表示节点(200,200')。 表示节点通过在组内累积信息来向管理员节点发送信息。 表示节点将信息直接发送到管理员节点。 表示节点通过将数据发送到具有最小距离的另一表示节点并且在表示节点和管理员节点之间处于禁用的直接通信状态的管理员节点来将信息传送到管理员节点。