Protecting HRP UWB Ranging System Against Distance Reduction Attacks

Ultra-wideband (UWB) communication is an emerging technology that enables secure ranging and localization. Since UWB communication enables measuring an exact distance, enhanced security would be expected based on it. Recently, however, it has been demonstrated that a distance measured by IEEE 802.15.4z high-rate pulse repetition frequency (HRP) UWB ranging system can be maliciously reduced. The HRP UWB ranging system is widely adopted by smartphone manufacturers such as Samsung and Apple.