Description: Enter the DES encryption and decryption algorithm to achieve a single CPP, which expressly 1.txt for input, key2.txt for key input, out2.txt for encrypted and decrypted ciphertext expressly output after
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File list (Check if you may need any files):
1.txt
des.cpp
DES.dsp
DES.dsw
DES.ncb
DES.opt
DES.plg
key.txt
key2.txt
out1.txt
out2.txt
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