CHAPTER 9BLUETOOTH EAVESDROPPING
The ability to collect traffic passively from an active data exchange over the air is one of the greatest risk factors in wireless networking, Bluetooth being no exception. Unlike Wi-Fi and other wireless standards with similar physical layer characteristics, however, Bluetooth traffic can be very difficult to capture for several reasons.
First, Bluetooth is based on Frequency-Hopping Spread Spectrum (FHSS), where the transmitter and the receiver share knowledge of a pattern of frequencies used for exchanging data. For every piconet, the frequency pattern is unique, based on the BD_ ADDR of the Bluetooth master device. Frequency hopping at a rate of 1600 hops per second (under normal conditions), the Bluetooth ...
Get Hacking Exposed Wireless, Second Edition, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
