带有仲裁认证码的组合论下界

摘要

本文给出了带有仲裁认证码的组合论下界,并利用带有约束的t-设计,给出了敌方的r阶欺骗攻击成功的概率达到下界的带有仲裁认证码的组合结构.%Combinatorial lower bounds for authentication code with arbitration are obtained in this paper.By use of restrained t-design,combinatorial structure for A2-code is also obtained.