Secure Linux Operating System Design And Research

With information threats and security requirements becoming all-important problem, the security of operation system is becoming the key to the problem.However none of secure operation system is mature and powerful in business and theresearch of it is always going on. So designing and composing a secure operationsystem is the ultimately aim.Each security operation system has its own security policy. This paper analyses some secure policy in-depth of each security operation system, and particular present BLP and Biba policy, putting forward a new policy LDBB. Analysing an excellent security operation system in full aspects, putting forward some opinions and solution schemes for solving the hacking, virus, and intrusion is in the secend. In the end, this paper analyses the framework and running mode of Flask, and the kernel of Selinux operation system, finding the insufficiency of which. Redesign the important module of Selinux, such as data structure, security label and hook function.