Design And Implement Of Storage Media Sensitive Information Protection System

Today,as the development of information technology,computers are widely used in various domain of fabrication and lives. Computer's security and stability could be broken if some Sensitive information in storage media of computer were changed. So a protection system of that sensitive information is necessary and useful.According to the relative information, a method of protecting the sensitive information has been brought forward. Based on the theory, a SIPS which can intercept the IRP (I/O(input/output) request packet) sanded from I/O manager to disk driver has been developed, and the SIPS also can redirect the aim sectors of the IRP which is defined as―dangerous‖. In the thesis the overall structure and the design purpose of function moulds of SIPS has been stated; the Windows I/O system's structure and working principles has been dissertated; the design idea and work processes of SIPS's modules have been showed; and the driver complies method of Windows system has been dissertated.SIPS uses the device driver to enter the kernel of the Windows system. SIPS intercepts and redirects the IRP that send from I/O manager to disk driver to achieve the purpose of protecting the Sensitive information.Based on the overall design principles, it claims the methods of realizing the system's function and shows the key technologies'. Those methods and technologies include driver loading, IRP intercepting, IRP redirecting et al.The result of actual operating shows SIPS can redirect the request of reading/writing the sensitive sectors. The SIPS achieves the purpose of protecting the Sensitive information.