Abstract
This thesis presents a new smart energy (SE) system with distributed access control. Many other SEsystems to date support remote control and automation but not access control, making them applicableto homes but not offices or other public settings. Even if they implement access control, virtually allexisting SE systems suffer from central point of failure. To address these problems, we propose anew SE system that supports not only access control but also distributed access from multiple deviceswithout relying on centralized control. In addition to access-control list, we also take advantage ofthe proximity tag feature supported by the Bluetooth Low Energy (BLE) protocol without requiringusers to take out their identifying BLE devices from their pockets as one would have to do with RFIDtags. Experimental results show that our SE system to offer the security features required for publicdeployment with minimal power, latency, and cost overhead.