Design And Implementation Under Windows File Protection Feature

With the development of computer and communications technology, the number of personal document is constantly growing, these documents could include some important documents about personal and business secrets. Due to personal and corporate employee safety awareness or prevention capability is poor, resulting in these important documents always faced with various security threats, not only to resist the attack and destruction from the outside, but also from within to prevent intentional or unintentional disclosure. File security problems have received more and more attention, therefore, it’s necessary for file protection feature in Windows, effectively protect the safety of important documents.Under research the Windows system file security requirements and application background, analyzes the current domestic and foreign technology and document security solutions, introduces the Windows file system filter driver technology, based on their own safety and protection of security documents designed file Protection feature with driver programs. This driver design by the authentication module, partitioning hidden module, filter monitoring module, consisting of transparent encryption and decryption module and nonproliferation Module. Through the study of the logical structure of the disk, Windows file system and virtual hard disk technology, design and implement a hidden partition module. The file system filter driver, transparent encryption and decryption technology research, design and implementation of filtration monitoring module, transparent encryption and decryption module and nonproliferation module, smart password key technologies through research, gives the authentication module design.Finally, through the file protection function of each module test, you can test the basic functionality and performance of each module to meet the requirements. In addition, summarized the study under Windows File Protection feature, and for future work made a further outlook.