8 citations · 34 across the 6 of their papers we have counts for
6 papers · 1 filter
Smartphones with UWB: Evaluating the Accuracy and Reliability of UWB Ranging
Alexander Heinrich, Sören Krollmann, Florentin Putz +1
More and more consumer devices implement the IEEE Ultra-Wide Band (UWB) standard to perform distance measurements for sensitive tasks such as keyless entry and startup of modern ca…
Evil Never Sleeps: When Wireless Malware Stays On After Turning Off iPhones
Jiska Classen, Alexander Heinrich, Robert Reith +1
When an iPhone is turned off, most wireless chips stay on. For instance, upon user-initiated shutdown, the iPhone remains locatable via the Find My network. If the battery runs low…
AirGuard -- Protecting Android Users From Stalking Attacks By Apple Find My Devices
Alexander Heinrich, Niklas Bittner, Matthias Hollick
Finder networks in general, and Apple's Find My network in particular, can pose a grave threat to users' privacy and even health if these networks are abused for stalking. Apple's…
Ghost Peak: Practical Distance Reduction Attacks Against HRP UWB Ranging
Patrick Leu, Giovanni Camurati, Alexander Heinrich +5
We present the first over-the-air attack on IEEE 802.15.4z High-Rate Pulse Repetition Frequency (HRP) Ultra-WideBand (UWB) distance measurement systems. Specifically, we demonstrat…
Who Can Find My Devices? Security and Privacy of Apple's Crowd-Sourced Bluetooth Location Tracking System
Alexander Heinrich, Milan Stute, Tim Kornhuber +1
Overnight, Apple has turned its hundreds-of-million-device ecosystem into the world's largest crowd-sourced location tracking network called offline finding (OF). OF leverages onli…
DEMO: BTLEmap: Nmap for Bluetooth Low Energy
Alexander Heinrich, Milan Stute, Matthias Hollick
The market for Bluetooth Low Energy devices is booming and, at the same time, has become an attractive target for adversaries. To improve BLE security at large, we present BTLEmap,…