【摘要】 提出了一种新的细胞自动机——二维可控细胞自动机。根据二维可控细胞自动机的性质,提出了一种具有梯型结构的二维可控细胞自动机的伪随机序列发生方法。计算机模拟表明,具有梯型结构的二维可控细胞自动机伪随机序列发生器实现简单,产生的序列具有速度高、统计特性好等优点。新的细胞自动机在对称密码学中有广泛地应用。更多还原

【Abstract】 A novel cellular automata(CA)—two-dimensional controllable CA—is proposed in this paper.According to characteristics of two-dimensional controllable CA,a pseudo random generating method based on two-dimensional controllable CA with a trapezoidal structure is presented.Simulation demonstrates that pseudo random bit sequence generator based on the two-dimensional controllable CA with a trapezoidal structure is easily implemented,and can generate high speed bit sequence and excellent statistical properties.This novel CA is widely used in symmetrical cryptography.更多还原