id author title date pages extension mime words sentences flesch summary cache txt cord-137892-1mrsvg3b Ng, Pai Chet Epidemic Exposure Notification with Smartwatch: A Proximity-Based Privacy-Preserving Approach 2020-07-08 .txt text/plain 6441 361 54 Our proximity-based privacy-preserving contact tracing (P$^3$CT) leverages the Bluetooth Low Energy (BLE) technology for reliable proximity sensing, and an ambient signature protocol for preserving identity. Proximity sensing exploits the received signal strength (RSS) to detect the user's interaction and thus classifying them into lowor high-risk with respect to a patient diagnosed with an infectious disease. Rather than using the conventional two-way BLE communication channels (i.e., a secure channel for data exchange established through a series of pairing and handshaking processes), the smartwatch uses a non-connectable advertising channel, which was primarily used by beacon-based applications, to broadcast the packet. While it is relatively straightforward to develop such an application to the smartwatch for contact tracing purposes, it remains unclear how accurate is the proximity sensing information estimated through the RSS value and how the ambient signature information can help to prevent information leaks. ./cache/cord-137892-1mrsvg3b.txt ./txt/cord-137892-1mrsvg3b.txt