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DOI:
Journal of Software:1997.8(2):128-136

一种简单阈值方案的优化
苏中民,林行良,戴一奇
(清华大学计算机系,北京,100084)
THE IMPROVEMENT OF A SIMPLE THRESHOLD SCHEME
SU Zhongmin,LIN Xingliang,DAI Yiqi
()
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> 中文摘要: 秘密分存是一种安全有效的密钥管理技术,现已广泛应用于数据安全的各个方面.以往的(k,n)阈值方案,计算量较大.本文提出了用赋标号降低数据扩展的优化方法,给出了一种优化后的简单(k,n)阈值方案论证了其安全性并分析了其数据扩展.这种方案适用于图象秘密分存等秘密数据量较大的情况.
Abstract:Secret sharing is an effective technique for key management,and has been widely used in many aspects of data security.The existing(k,n)threshold schemes for the secret sharing are relatively complex and the data expansion they cause is remarkable. In this paper,a label assignment method is suggested for reducing the data expansion of a simple threshold scheme.The effect of the improved scheme is obvious and its security is ensured too.Such scheme can be used in the secret sharing of the data on a large scale such as images.
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苏中民,林行良,戴一奇.一种简单阈值方案的优化.软件学报,1997,8(2):128-136

SU Zhongmin,LIN Xingliang,DAI Yiqi.THE IMPROVEMENT OF A SIMPLE THRESHOLD SCHEME.Journal of Software,1997,8(2):128-136