利用仿射辛空间构作Cartesian认证码

Construction of cartesion authentication codes from affine sympletic spaces

利用有限域上仿射辛空间构作了一类Ｃａｒｔｅｓｉａｎ认证码，计算了码的参数．并在编码规则按等概率分布选取时，算出了敌方模仿攻击和替换攻击成功的概率．

A construction of Cartesian authentication codes from affine sympletic space is present in this paper,and 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 are also computed.