摘要
利用有限域上辛几何构作了一类带仲裁的认证码（简称Ａ２－码），计算了这类码的参数．在发方与收方的编码规则按等概率分布选取时，计算出敌方与收方成功的模仿攻击和成功的替换攻击的概率，以及发方成功的模仿攻击的概率．研究的结论表明可进一步用其他典型群的几何学构作Ａ２－码．
Two constructions of authentication codes with arbitration from symplectic geometry are given.The parameters are computed.Assuming the encoding rules are chosen according to a uniform probability distribution,the probabilities of successful impersonation attack and successful substitution attack of the opponent and of the receiver,and the probabilities of successful attack of the transmitter are also computed.This illustrates many A 2 Codes can be constructed from symplectic geometry.
出处
《陕西师大学报（自然科学版）》
CSCD
北大核心
1998年第2期12-16,共5页
Journal of Shaanxi Normal University(Natural Science Edition)
基金
国家自然科学基金
关键词
辛几何
仲裁者
认证码
编码
symplectic geometry
arbiter
authentication codes
