REUSING SHARES IN SECRET SHARING SCHEMES

被引：14
|
作者：
ZHENG, YL
HARDJONO, T
SEBERRY, J
机构：
来源：
COMPUTER JOURNAL | 1994年 / 37卷 / 03期
关键词：
D O I：
10.1093/comjnl/37.3.199
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A (t, w) threshold scheme is a method for sharing a secret among w shareholders so that the collaboration of at least t shareholders is required in order to reconstruct the shared secret. This paper is concerned with the re-use of shares possessed by shareholders in threshold schemes. We propose a simple (t, w) threshold scheme based on the use of cryptographically strong pseudo-random functions and universal hash functions. A remarkable advantage of the scheme is that a shareholder can use a single string in the share of many different secrets; in particular, a shareholder need not be given a new share each time a new secret is to be shared.
引用
收藏
页码：199 / 205
页数：7
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