Research Challenges a Network Infrastructure Reliability and availability High performance Leverage security tasks a Secured data communication Data confidentiality, integrity, freshness authentication WSNS do not support traditional security methods Function in presence of node compromiseResearch Challenges ❑ Network Infrastructure ➢ Reliability and availability ➢ High performance ➢ Leverage security tasks ❑ Secured Data Communication ➢ Data confidentiality, integrity, freshness & authentication ➢ WSNs do not support traditional security methods ➢ Function in presence of node compromise 5