[Cryptography] BBC to deploy detection vans to snoop on internet users

[Sampo Syreeni]

On 2016-08-08, John Ioannidis wrote:

> I love the assertion that it works just as well as the old TVL vans 
> worked. It could simply mean that neither works at all :)

It's being claimed that they take a picture of a neighbourhood and on 
the fly correlate the lighting variation in people's windows with the 
on-going program. That'd work equally for all modes of transmission, and 
FFT based hardware to do that sort of thing efficiently is out there 
already because of the advances in synthetic aperture, active scanning 
radar technology.

As for the cat detection van... Obviously that skit was inspired by the 
earliest BBC detection vans, which probably relied on principles similar 
to those utilized in radar detectors. Detection of a common intermediate 
frequency in television sets, or perhaps even the line frequency 
harmonics from the tube itself.

Nobody expects the The British Broadcasting Corporation.
-- 
Sampo Syreeni, aka decoy - decoy at iki.fi, http://decoy.iki.fi/front
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