Design And Implementation Of Security System For Documents On Linux Platform

With the rapid development of information technology, electronic documents become the core resources of enterprise data information. The security issue of electronic documents has been concerned widespreadly, because of its characteristics of ease to copy and transmission.In this thesis, we will make a research on the security issue of electronic documents on Linux platform. Firstly, we will analysis the needs of electronic document security system on Linux platform, and then give the corresponding solution. A kernel module will be loaded to achieve transparent encryption and decryption of electronic documents, and a shared object will be injected at the application layer for controlling the the behaviors of some softwares.By this solution, we can ensure the normal access to electronic documents in a controlled environment and prevent leakage due to the document propagation.This thesis is mainly to solve transparent encryption and decryption and behavior control and other issues that the electronic document security system concerns. The experimental results show that the proposed method which has some practical value can guarantee the security of electronic documents on Linux platform efficiently and conveniently from multiple levels.