Question: DES Programming using C++, make .h, .cc, .main, makefile, and readme.txt For encryption, let user input the key in Hexadecimal number, the plain text in

DES Programming using C++, make .h, .cc, .main, makefile, and readme.txt

For encryption, let user input the key in Hexadecimal number, the plain text in Hexadecimal number, output the ciphertext (in hexadecimal numbers).

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