Constructions of Authentication Codes from Direct Sum Decompositions of F_q~(n)
Jun Guo · Journal of Hebei University · 2001
Construction of Cartesian authentication codes from direct sum decompositions of n-dimension at row vector space over finite field is presented,and the size paramenters of the code in construction are computed.Moveover,assume that the encoding rules are chosen according to the uniform probability distribution,the P I and P S which denote the largest probabililies of a successful impersonation attack and a successful substitution attack respectively of the code in construion are also computed.