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Stealth signals are bypassing Iran’s internet blackout

https://spectrum.ieee.org/iran-internet-blackout-satellite-tv
48•WaitWaitWha•1h ago

Comments

zenmac•21m ago
>NFP’s solution was to add redundancy, similar in principle to a data-storage technique called RAID (redundant array of independent disks). Instead of sending each piece of data once, we send extra information that allows missing or corrupted packets to be reconstructed.

A bit disappointing TBH if that is their solution. Seems like everything is trying to pigeon hole everyone into the proof of work scenario. If we have more power/energy then we will beat you in everything security, coding and censorship circumvention.

femto•13m ago
It's a sound solution. They are describing forward error correction with a variable code rate. Reducing the code rate increases the amount of redundancy, allowing the signal to be retrieved when the signal-to-noise ratio is lower. It's a standard part of communications theory and has a strong theoretical basis. A low enough code rate will overcome almost any level of jamming at the cost of reduced data rate, provided the receiver does not saturate.
wiml•11m ago
I think they're just doing forward error correction (FEC). Not sure what that has to do with proof-of-work?
hgoel•10m ago
What other method do you propose to deal with data loss?
tgma•20m ago
None of the people I know inside Iran actually use this Toosheh thing. And I mean zero, nada, none. Not one. Most are unaware of its existence. This sounds something that sounded cool pre-Starlink era that received funds and favors from western governments and NGOs and did not result in anything useful (not surprising that they get international press too despite being a total failure.) Realistically, a download-only solution does not solve a problem. Persian video content that people watch are delivered via DVB Satellite TV video channels. With Internet, what people want is to communicate and therefore need realtime access and data upload capability to contact others and use web services, not download a new offline copy of Wikipedia everyday! In practice, Iranians inside Iran end up mostly using VPNs and tunnels of various sorts. Often some variant of shadowsocks with SNI spoofing, which stop working in a full blackout. What will be left during a full blackout is people who have government-sanctioned SIM cards with full Internet access (known as "white SIMs") to propagandize on social networks in favor of the reigme when everyone else is disconnected and a tiny set of people who have Starlink.

The same set of people behind that project were supposedly given additional resources to smuggle Starlinks in, and in the Persian community on Twitter, there's an ongoing meme mocking where those Starlinks actually went and given to whom, never to get an answer...

bawolff•12m ago
So its just embeding some files in a satalite tv broadcast stream?

I dont think that helps that much. If you have satalite tv going in, you already have video coming in, are arbitrary files really that much more useful?

The thing people really want internet communication for is 2 way coms. Getting info on the situation on the ground out and allowing different groups inside Iran to coordinate. I fail to see how this helps with that.

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