对F2^8×4上可逆线性变换给出了其线性分支数和差分分支数的一个判定定理,并对特殊的可逆线性变换即循环移位模2加给出了简化的判定条件。
A decision theorem is given for the linear branch numbers and the difference branch numbers of the invertible linear transformations on F2^8×4, And a siuplified decision theorem is given for a special invertible linear transformation, namely the cyclic shift plus on F2.