Enhanced micro-TCB approach for smartphone security

The smart phones are most commonly used by everyone nowadays. People store their personal information like pictures, videos, contacts, passwords and user accounts. To manage this type of sensitive data and to secure the data, a micro trusted computing base (TCB) approach was introduced. It provides core services to applications to secure the private data. In this paper, we have extended the previous research of micro TCB [4]. We enhance the μTCB by adding a single feature priority queue in it. It makes μTCB more efficient as it reduces traffic overloading in secure mode and applications enter into μTCB one at a time. User has three options to set the priority of the application as high, medium and low. In our enhanced μTCB approach, once an application is defined by the user, it does not require authorization, which saves time. The existing μTCB security is improved in the enhanced μTCB as the priority queue does not accept an application when it is declared as unauthorized by the system. Results show that the enhanced μTCB is more time efficient.