四大古典密码 移位 放射 维吉尼亚 置换加解密源代码-four code

C语言实现古典密码学中的列置换，自己原创，有详细注释，便于理解这个算法-Permutation cipher，C language operations can definitely run, help to understand and master the encryption algorithm

置换加密解密 VC++6.0环境 密码学基础实验 置换密码体制-encryption and decrypt based VC++6.0

古典密码实验代换密码和置换密码使用C++实现。 -Classical password experiment replacement and substitution passwords using c++ implementation.

置换密码算法实现.置换密码算法的原理是不改变明文字符，而是按照某一规则重新排列消息中的比特或字符顺序，才而实现明文信息的加密。-Replacement password algorithm. Permutation cipher does not change the principle is expressly characters, but rearrange the message bits or characters in the order in which a rule, only