substitution cipher

常见例句

By itself, a rotor performs only a very simple type of encryption — a simple substitution cipher.
一个转子单独地执行一项非常简单的加密法--- 一个简易的替代式密码法。例如；
This paper proposes a matrix based substitution permutation network as the model of block cipher.
论文提出了一种基于矩阵的代替置换网络模型。
Therefore, using large completely nonsingular matrix based substitution permutation networks can effectively improve cipher security in relation to differential cryptanalysis.
指出了使用大规模的基于全奇异矩阵的代替置换网络可有效地提高分组密码抗差分密码分析的安全性。