一种改进的会议密钥分配方案

Improved Conference Key Distribution Scheme

基于Diffie-Hellman公钥分配体系和密封锁,给出一种改进的会议密钥分配方案。理论分析证明,该方案能够保证组成员的匿名性,防止被动攻击、重放攻击、伪造攻击,具有良好的可扩展性,并且组成员可以验证自己是否被邀请参加当前会议。与同类方案相比,该方案的密钥分配过程和恢复过程的计算量更小。

Based on Diffie-I-Iellman public key distribution system and a sealed lock, this paper proposes an improved conference key distribution scheme. Theory analysis proves that the scheme has good scalability, provides anonymity of the conference group members, and can prevent passive attacks, replay attacks and forgery attacks. With the scheme, the group members can verify if they are invited to attend the conference. Compared with the previous schemes, the scheme is less computational.