文章从保护服务器中文件信息的角度，研究一种利用混合加密实现隐藏文件的方法，防止非法权限的用户窃取、拷贝和破坏文件。其过程首先用一款文件转换数字文本的软件将文件转换为数字文本，按照一定算法在数字文本中添加一串特征值，利用DES加密混合特征值的数字文本，实验结果只保存DES加密后的密文，删除源文件。实现隐藏服务器中重要文件，防止非法用户得到文件信息的目的。%From the perspective of file protection in the server, the paper instigated a kind of hybrid encryption method to achieve hidden files, and to prevent the illegal user from stealing the permissions, copy and destruction of documents forma⁃tion in the server. Firstly, the processed files will be converted to digital text using a digital text file conversion software via certain algorithm to add a bunch of eigenvalue on digital text. Then, the experimental results only saved DES encrypted ci⁃pher text, removing the source file using DES encryption of digital text mixed characteristic value. The experimental achieve⁃ment in hiding important file server can prevent illegal users from obtaining the purpose of document information.
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