摘要： 分析了目前各种门限密钥托管体制中的法律实施访问域(LawEnforcementAccessField,LEAF)的结构,对它们进行了攻击。结果证明这些LEAF结构都不能避免LEAF反馈攻击或阈下信道攻击。最后提出了一种可以防止阈下信道攻击的LEAF结构。
关键词:
LEAF,
密钥托管,
门限密码学,
阈下信道攻击
Abstract: This paper analyses several kinds of LEAF’s structure of today’s threshold key escrow schemes, all of them can not resist against theLEAF feedback attack or subliminal channel attack. At last, a new LEAF’s structure is proposed.
中图分类号:
龙宇,曹珍富. 对密钥托管系统中LEAF结构的研究[J]. , 2005, 31(12): 161-.
LONG Yu1, CAO Zhenfu2. Research on the LEAF Structure of Key Escrow Scheme[J]. , 2005, 31(12): 161-.