Making Middleware Secure on Embedded Terminals

Recently more embedded terminals have begun to use a general-purpose OS such as Linux. These terminals can perform various functions, such as downloading applications. Since these applications maybe malicious, it is necessary to protect terminals against them and to ensure stability of services provided by the terminals. We have proposed a security enhanced middleware model for embedded terminals based on Linux (SEMMETL). The SEMMETL offers client identification, access control for each application and resource control for each application. The security enhanced X server (SEN XServer) is an example of our proposed SEMMETL. By applying the SEMMETL to middleware, we can enhance the security of embedded terminals and ensure stability.