Modeling leakage process of key information

被引:0
|
作者
Yang, Hao-Miao [1 ]
Gu, Xiao-Feng [1 ]
Li, Jian-Ping [1 ]
Sun, Shi-Xin [1 ]
机构
[1] Univ Elect Sci & Technol China, Coll Comp Sci & Engn, Chengdu 610054, Peoples R China
关键词
gradual key exposure; key update; key revocation; smooth entropy;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Proper key renewal interval may control the trade-off between security and renewal cost, and thus partial and gradual leakage of key information is studied for predicting quantitatively key life. A key is treated as a random vector. Smooth entropy represents still secret almost uniform random bits that can be extracted with high probability from a compromised key (as a result, smooth entropy may be used to define the key life). The varying of smooth entropy over time is modeled as a compound Poisson process.
引用
收藏
页码:979 / +
页数:2
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