Description: 1, Vigenere of programming using C language design and implementation of the Vigenere classical cryptosystem password and encrypt/decrypt a file 2, Column permutation password programming programming (recommended C language) to achieve classical cryptography in Column permutation password and encrypt/decrypt a string or file 3, DES of programming language design and implementation using C DES cipher, and encrypt/decrypt a file
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..........\column.cpp
..........\des.cpp
..........\ve.cpp
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