The Transparent Encrypt File System Based On Linux

With the advent of the Internet era, data has become the core of a lot of companies, research institutions confidential, especially for some Internet companies as well as some of the design agency data security has become their lifeline. How to make sure the security of the data is an important direction in the field of security research.Many Internet companies choice Linux as a server and desktop operating system, because it openness, efficiency and copyright. In traditional Linux make the file security through the operating system access control, if other users bypass the system access control, to the owner of the file may be disastrous impact. In this article implemented a transparent encrypt file system based on the Linux operating system, the system exist between in virtual file system and the real file system. This system will not damage the flow of data flow on the operating system, and it also will not change the application programming interface. For applications, it is completely cannot feel the encryption and decryption exists in the file system. In this paper, encrypt the data occurred in the hard drive in order to achieve the protection of data.In this paper, we used stack file system to transparent encrypt the file. We do not need modify the kernel code, but only create a new file system and mount it between virtual file system and real file system. As a module to install in operating system, users to do not need to the recompile the kernel to make the operating system have encryption and decryption function. This approach can reduce the complexity of installation.