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We can thank Michael Ossmann for his DC25 talk about detecting and pulling DSSS signals out of noise. He also posts proof of concept code to do just that, inclu
by duckfang 6y ago
We can thank Michael Ossmann for his DC25 talk about detecting and pulling DSSS signals out of noise. He also posts proof of concept code to do just that, including also detecting the chip sequences and chiprate. https://hackaday.com/2017/07/29/michael-ossmann-pulls-dsss-out-of-nowhere/ https://hackaday.com/2017/07/29/michael-ossmann-pulls-dsss-o...
We're also dealing with only 48KHz, which is 2-3 magnitudes less than what SDR people are accustomed to dealing with.
And we can also make our own detection systems by having a 3 person "meeting" with fake audio, with this fingerprinting on, and then comparing the 3 recordings.
- a1369209993 6y ago> Michael Ossmann for his DC25 talk Link to the video? Searches aren't coming up with anything useful.
- zo1 6y agoStruggled to find it via google. Eventually Bing Video search worked... https://www.youtube.com/watch?v=z9RkPt6uVQ4 https://www.youtube.com/watch?v=z9RkPt6uVQ4 Note, it's not from the official Def Con channel, so some fuckery is afoot.
- zo1 6y agoMinor correction: The talk was made at "RECON" instead of DefCon.
- a1369209993 6y agoWell, that explains why I couldn't find it. Thanks for tracking it down.