Secure PC Platform Based on Dual-Bus Architecture

The emergence of single CPU dual bus architecture provided a new kind of architecture that aimed at preventing intruders from accessing valuable information stored in the computer system. Security in Von Neumann architecture is currently poorly considered, and it does not reduce significant vulnerabilities. Separating the network communication components from the data processing ones is our concern in this paper. Many proposed schemes were presented recently, but none of which, employing separate system bus, have been proven experimentally as a potentially effective method for protecting the data stored in hard drives and removable disks. In our scheme, the system does not need to maintain any authentication mechanism or data integrity for the packets sent by any node, with a well-received attention towards threatening our valuable stored data. In this paper we implemented a model for a dual bus architecture system based on a bus bridge which controls the data transferred between the two system buses, as well as preventing all spy ware programs. The experiment is done and the result has proven that the dual bus architecture is reasonable and effective. The analysis also showed that the entire computer system, including peripherals is well protected from outside intruders.