[sensors] Frequency readout allows fingerprinting sensors, privacy.

lknik has just created a new issue for https://github.com/w3c/sensors:

== Frequency readout allows fingerprinting sensors, privacy. ==
Hi,

I will put it here just not to forget, we should consider writing 
something specifying that it will be possible to poll the supported 
frequencies (hardware/implementation related). 

1. Loop through the polled frequencies (e.g. 0 .. 500)
2. Inspect the sensor readout, take into account the readout's 
timestamp
3. Verify how many readouts per second are supported
4. In the end, it could be possible to inspect the actually supported 
frequencies.

We could add something:

"Frequency polling in periodic reporting mode might allow the 
fingerprinting of hardware or implementation types, by probing which 
actual frequencies are supported by the platform."


Please view or discuss this issue at 
https://github.com/w3c/sensors/issues/99 using your GitHub account

Received on Monday, 11 April 2016 11:38:44 UTC