3 ms·
ToF + RSSI combination on keys is still to be beaten with good protocol. I say with good protocol since "ghost peak" vulnerability is really a protocol issue, b
by wallaBBB 4y ago
ToF + RSSI combination on keys is still to be beaten with good protocol.
I say with good protocol since "ghost peak" vulnerability is really a protocol issue, but keys don't fall under CCC, and have proprietary ones.
- AshamedCaptain 4y agoThis is exactly what they are beating in this article. They claim their relay method is not altering ToF significantly and that the RSSI measurement is useless.
- wizee 4y agoNo, it does not beat Time-of-Flight measurement. What it does achieve is keeping GATT response latency within normal ranges, so that the GATT response latency cannot be reliably used as an indication of relay attacks. GATT response latency can vary by tens of milliseconds, whereas Time-of-Flight is usually measured in microseconds or nanoseconds. Unfortunately, Bluetooth LE alone lacks a mechanism for time of flight measurement in secure ranging, hence why technologies like UWB are needed.