This class implements the DES algorithm, data if your data block size of sizeof (data) is a multiple of 8, you can use the function DES:: encrypt (key, data, sizeof (data)/8) to be encrypted, using DES :: decrypt (key, data, sizeof (data)/8) to be decrypted. If the data block size is arbitrary, then you can use the function DES:: yencrypt () and DES:: ydecrypt () to carry out encryption and decryption. This module is object-oriented design is not good, not so much a class as it is a function of a module set.

DES.txt

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