摘要
本文给出一类新的完善保密协议———优先退化协议 ,它与以往的优先提取协议具有不同的功能 :优先提取是指通信伙伴的互信息被首先提取 ,而优先退化是指敌方掌握的信息被首先退化 .本文讨论了优先退化协议有效的条件 。
This paper presents a new class of complete security protocol--advantage degeneration protocol.Advantage degeneration protocol and former advantage distillation protocol have different functions:one means that the mutual information of communication partners is distilled firstly,another that the information of enemy is degenerated firstly.The paper discusses conditions for efficient protocol,and presents a mixed protocol which has both advantage distillation and advantage degeneration functions.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2002年第4期535-535,543,共2页
Acta Electronica Sinica
基金
国家自然科学基金 (No .69972 0 34)
高等学校国家重点实验室访问学者基金
关键词
完善保密方案
优先退化协议
通信协议
complete security
key agreement
advantage distillation
privacy amplification
