(DES encryption demonstration program, with very detailed code and comments, hope to help your cryptography. This document includes the following attachments:
DES\bin\Debug\DES.exe
DES\obj\Debug\DES.o
DES\obj\Debug\main.o
DES\DES.c
DES\DES.cbp
DES\DES.depend
DES\DES.h
DES\DES.layout
DES\DES_Data.h
DES\DES_Fun.h
DES\main.c
DES key generation (omitted).JPG
DES key generation (details).JPG)