DES加密解密，感觉蛮好用的

密码学中用openssl做的文件保险箱，融合了AES.DES.RAS等多种加密算法。-In cryptography openssl do file safe, shirt-sleeve AES. DES. RAS and so on the many kinds of encryption algorithm.

参考别人的后，用MFC做的DES加密解密，有完整的工程。可以对文档进行加密解密。可以在没有打开文本的情况下对文本内容进行预览。可以加密.doc文档，当密钥大于8，自动启动3重DES加密解密。-Reference to others, the use of MFC to do DES encryption and decryption, a complete project. Can decrypt the document. You can not open the case of the te

涉及到了TripleDes的算法,在实现过程中,我也参考了论坛现有的关于3DES的代码(Involves the TripleDes algorithm, in the process of implementation, I also refer to the BBS of existing code about 3 des)