GPS World, April 2016
INERTIAL CELLULAR Continued from previous page One team with one goal accurate and reliable GNSS positioning anywhere APRIL 2016 WWW GPSWORLD COM GPS WORLD 13 microphones and speakers They found they could produce a unique frequency response curve based on how devices play and record a common set of frequencies Amplifiers and Oscillators A team at the Technical University of Dresden developed a tracking method that exploits variations in the radio signal of cell phones The collection of components such as power amplifiers oscillators and signal mixers can all introduce radio signal inaccuracies Bojinov and colleagues presented further work at the RSA Conference 201 5 in Sensor ID Mobi le Device Identification via Sensor Fingerprinting Among findings We have found ways to construct a device ID by sensor fingerprinting All the sensors fingerprints may sum up to enough bits to identify all devices It is hardware dependent It can be used by web application A related presentation stated that this is only the beginning Many more unexpected information leakages will be found in the coming years Treat every app you install as having root on the phone And think twice before installing that harmless game Engineers at Robert Bosch GmbH in Germany focused on MEMS based gyroscopes and showed via wafer level measurements and simulations that it is feasible to use the physical and electrical properties of these sensors for cryptographic key generation a key requirement for full rollout of the Internet of Things Teams f rom Vi rgi n ia Tech and the University of Essex have published papers detailing similar approaches basically turning this vulnerability into a tool We prove that device identification can be generated by using the accelerometer found in many pervasive devices wrote the Essex researchers Our experiments are based on a set of health sensors equipped with a MEMS accelerometer Periodic readings are obtained from the sensor and analyzed mathematically and statistically to generate a stable ICMetric number ALISSA FITZGERALD aided in assembling this overview report
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