【摘要】 针对动态对等群组设计了一个具有许可控制功能并且可认证的密钥协商方案.该方案利用秘密分享实现了许可控制与密钥协商的有机结合,保证了密钥协商方案的系统性和实用性;组成员之间使用基于身份的密钥协商完成相互的认证,解决了传统方式采用PKI公钥证书所引起的带宽消耗和计算开销,保证了群组通信的安全性和高效性.更多还原

【Abstract】 An authenticated group key agreement scheme with admission control for dynamic peer groups was presented. The scheme uses secret sharing to achieve the integration of admission control and key agreement which can provide the practicability for key agreement scheme. Identity-based cryptosystems are used for mutual authentication and key agreement among group members, and it avoids the bandwidth consuming and expensive computation arising from certificates in PKI. So the scheme can achieve higher security and efficiency.更多还原