【摘要】 该文基于分布式系统给出了一种安全广播方案。与已有广播方案相比,该方案有效地减少了发送者所产生的广播信息并能防止攻击;另外,当一个新用户/已有用户要插入/退出分布式系统时,该方案不需要修改任何已有的保密密钥和公开密钥。更多还原

【Abstract】 Based on the distributed systems ,this paper proposed a secure scheme.Comparing with the existing broad-casting schemes,this scheme has effectively reduced the broadcasting messages generated by the sender and can pre-vent the attacks.Besides,no modification of the secret and public keys are necessary when a new user /an existing user is inserted into /removed from the distributed system.更多还原