Description: Three classical cryptography system and DES system and its analysis. affine (affine) read the contents of a file 11.txt (lowercase letters, plaintext) is encrypted and write the contents 12.txt can decrypt the generated file 13.txt. vigenere, hiill body system is similar. DES system contains the encryption and decryption of the contents of the avalanche effect differential analysis. I still just learning the language of the program source code and cryptography in the undergraduate level is very low, the first upload just to try. Can consider less to a few points. Can be used directly.
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acryyptoloogyc\cryptology\11.txt
..............\..........\21.txt
..............\..........\31.txt
..............\..........\affine.cpp
..............\..........\DES.h
..............\..........\desmain.cpp
..............\..........\hill.cpp
..............\..........\ReadMe.txt
..............\..........\vigenere.cpp
..............\cryptology
acryyptoloogyc
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