摘要
网络安全中,秘密分享体制的应用非常广泛。应用中,群组成员的个数常发生变化,如果每次变化时都要更新或重新分割,必然会给密钥管理增加很多困难,并带来较大的计算和通信代价。本文针对群组中新成员的加入提出了新的部分密钥生成算法,该算法无需可信机构,无需改动原先的秘密分配,满足安全性。
Secret sharing is widely used in network security. We can not refresh the secret S or divide S again due to the difficulty of secret management and large amount of calculations and communications. In this paper, we propose a new algorithm to distribute new secret shadows to new group members. Without the trusted center, this algorithm only needs small broadcasting cost and fits the safety requirements.
出处
《计算机工程与科学》
CSCD
2004年第2期23-24,35,共3页
Computer Engineering & Science
