Conceptual Design Performance Requirements O Efficiency of computation -computation of cryptographic keys and data encryption should be fast O Efficiency of communication protocol -data routing/relay should have low latency a Efficiency of energy -computation and communication tasks for security should not drain the limited power of the sensor nodes a Long network lifetime -networking architecture can be reconfiguredConceptual Design ❑ Efficiency of computation – computation of cryptographic keys and data encryption should be fast ❑ Efficiency of communication protocol – data routing/relay should have low latency ❑ Efficiency of energy – computation and communication tasks for security should not drain the limited power of the sensor nodes ❑ Long Network lifetime – networking architecture can be reconfigured 11 Performance Requirements