Performance aware secure code partitioning

Many embedded applications exist where decisions are made using sensitive information. A critical issue in such applications is to ensure that data is accessed only by authorized computing entities. In many scenarios, these entities do not rely on each other, yet they need to work on a secure application in parallel to complete application execution under the specified deadline. Our focus in this paper is on compiler-guided secure code partitioning among a set of hosts. The scenario targeted involves a set of hosts that want to execute a secure embedded application in parallel. The various hosts have different levels of access to the data structures manipulated in the application. Our approach partitions the application among the hosts such that the load imbalance across hosts is minimized to reduce execution time while ensuring that no security leak occurs.