一种高效的群组通信数据安全机制  

An Efficient Group Coummunication Data Security Scheme

作　　者：秦刚[1,2] 王东安[1,2] 张方舟[1,2] 南凯[3] 阎保平[3] 

机构地区：[1]中国科学院计算技术研究所 [2]中国科学院研究生院,北京100037 [3]中国科学院计算机网络信息中心

出　　处：《微电子学与计算机》2005年第6期84-86,90,共4页Microelectronics & Computer

摘　　要：文章提出的数据安全机制依赖于计算离散对数的难度,采用一种平面结构的密钥管理方式。每个用户可以通过其持有的秘密信息推导出群组通信的会话密钥,减少了用户之间的依赖性,因此可以简化密钥的动态更新问题;并且在通信过程中无需传递用户信息,不会泄漏用户身份;另外这种方式建立维护容易、密钥存储量和通信量都是最小的,适用于希望提供有效的安全群组通信服务中小规模应用。We provide a novel data security scheme based on a key management scheme which adopts flat key management architecture and relying on the difficulty on computing discrete logarithm. Every member can derive the session key of group communication from his own secret information without relying on other members. So it can simplify the dynamic refreshment issue. Furthermore, during communication, no member information will be delivered so no way will these information be compromised. Moreover, it is easy to install and maintain the proposed scheme. And the key storage and communication requirement is minimized. This scheme is well applicable to middle scale application.

关 键 词：群组通信 加密 密钥管理 会话密钥 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]