自己编的DES加密、解密算法，可实现windows下任何文件的加密、解密，尤其适用使用公用电脑而一些私人的文件不想被别人看到的情况，可设置八个字节的密钥，也就是每一位可以从0到255，这样对方就算已知置换矩阵和S盒的情况下用穷举法破解的难度也在2的32次幂，还是相当安全的。

加密：DESencrypt.exe

解密：DESdecrypt.exe-own addendum to the DES encryption, decryption algorithms can be realized under any windows document encryption, decryption, In particular, the use of common computer application and some private documents do not want others to see, can be set up eight bytes of keys, Each one is from 0 to 255. known each other even if such replacement matrix and the S-box using exhaustive method is difficult to decipher the two 32 power, still quite safe. Encryption : DESencrypt.exe declassified : DESdecrypt.exe