Introduction - If you have any usage issues, please Google them yourself
Permutation cipher does not change the principle is expressly characters, only characters in the explicit change in order to achieve explicit information encryption. Password replacement is also called transposition password. Programming test matrix transposition password. Its encryption method is to express the letter in accordance with the order given in a matrix, and then use the key provided in accordance with the order re-arrangement of the letters in the matrix to form a ciphertext.
Packet : 81404579zhihuan.rar filelist
zhihuan.cpp