The algorithm is compared with a little book on a number of changes. Because of the daily encryption, the plaintext is not only a number, often have letters or other characters appear. This is the first clear thought process to form characters read into ASCII code, ASCII code then converted into digital form. ASCII code for a total of 256 is 2 to the 8th power, accounting for 8-bit binary, this binary consists of two eight parts, each accounting for 4-bit encryption. Encryption algorithm and a similar book, first select the table with the keys, rows, inverted, and then XOR with the plaintext to do, shift and other operations. Came to the conclusion of two 4-bit binary number, into one, converted to decimal form of storage for the ciphertext.

新建文件夹\Debug\jiami.exe
..........\.....\jiami.ilk
..........\.....\jiami.obj
..........\.....\jiami.pch
..........\.....\jiami.pdb
..........\.....\jiemi.exe
..........\.....\jiemi.ilk
..........\.....\jiemi.obj
..........\.....\jiemi.pch
..........\.....\jiemi.pdb
..........\.....\vc60.idb
..........\.....\vc60.pdb
..........\jiami.c
..........\jiami.dsp
..........\jiami.dsw
..........\jiami.ncb
..........\jiami.opt
..........\jiami.plg
..........\jiemi.c
..........\jiemi.dsp
..........\jiemi.dsw
..........\jiemi.ncb
..........\jiemi.opt
..........\jiemi.plg
..........\mingwen.txt
..........\mingwen2.txt
..........\miwen.txt
..........\miyao.txt
..........\miyao2.txt
..........\算法思想.txt
..........\Debug
新建文件夹

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