摘要
针对密钥管理机制的需求,将共享密钥,采用Shamir(t,n)门限分解为个密钥份额,对所产生的个密钥份额,再次使用(t,n)门限进行分解,分别形成下一级的密钥份额,以此类推,形成经过多重门限所分解的密钥份额,由此推广了Shamir(t,n)门限密钥共享机制,提出了更一般的多重门限密钥共享机制,并给出了多重门限机制针对招投标系统在各种不同需求下的应用解决方案。
According to key management mechanism, the secret key k is divided into n secret shares, then each ot secret snare may be divided into the other n secret shares by using (t, n) threshold technique again and so on. So a more general multiple-threshold sharing mechanism is proposed. Shamir (t, n) threshold sharing mechanism is extended. According to the proposed mechanism a application to a bidding system under various environments is detailed.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第19期4929-4931,5043,共4页
Computer Engineering and Design
基金
国家自然科学基金项目(60461001)
广西自然科学基金项目(0542048)
关键词
秘密共享
多重门限
子秘密
密钥
招投标系统
secret sharing
multiple-threshold
sub-secret
key
bidding system