Originator Data Security for Collaborative Task Execution among Weak Devices

This paper presents a secure framework for dispatching and completing tasks in a network of weak embedded devices, such as sensors. The framework allows a device to dispatch tasks to other remote devices while ensuring that the secure data of the originating devices will not be disclosed with the dispatched tasks. The framework is implemented with TinyOS and MICAz motes for evaluation. The results show that the framework achieves the desired security with little overhead and is feasible to weak devices.