移位密码,仿射密码,维吉利亚密码,置换密码 四种C加密解密算法-shift password, affine password Weijilie password, password replacement of four C encryption and decryption algorithm

移位密码,仿射密码,维吉利亚密码,置换密码 四种C加密解密算法-shift password, affine password Weijilie password, password replacement of four C encryption and decryption algorithm