【摘要】 群组密钥协商是群组通信中非常重要的基本工具,如何得到一个安全有效的密钥协商协议是当前密码学研究中的一个重要问题。基于双线性对和随机预言模型,针对移动网络提出了一个动态群组密钥协商方案。此方案就计算复杂度和通信复杂度而言都是高效的,而且满足密钥协商所需要的安全要求。更多还原

【Abstract】 Group key agreement protocols are fundamental to group-oriented applications which gain more and more popularity today. Based on bilinear pairings and the random oracle model, a new identity-based dynamic group key agreement protocol for mobile networks was proposed. The analysis results show that the proposed protocol is efficient in terms of both computation and communication complexity, and satisfies most of the security requirements of key agreement.更多还原