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Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

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Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#171
They are also using Umbrella App, a free open source app to help protesters learn about and manage digital and physical security.

Links: www.secfirst.org

iOS: https://itunes.apple.com/us/app/umbrella-security/id14537153...

Android: https://play.google.com/store/apps/details?id=org.secfirst.u...

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#172

I just tried the app via the US App Store and it requires you to verify through SMS before use. This means that it’s neither anonymous nor fit for use in a disaster zone. Good example of software that would be better if open source.

Hi! You can skip the SMS verification step, which is how thousands of people have used it after earthquakes and hurricanes :) we also have an SDK so that developer can create their own app and make it work however they want.

It's awesome that you've released the SDK. :) Have you seen any cool projects done with it?

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#173
post #6

Super interesting. At Burning Man this year it seemed like a significant percent of the city had goTennas, which had never been true before. I also remember reading about a big mesh in Brooklyn being a thing recently. I bet we’re going to be hearing more about practical mesh networks in the coming years.

https://imeshyou.com — self-reported goTenna Mesh community map (globally)

https://globalmeshlabs.org — goTenna’s open-source Lot49 protocol, to incentivize build-out of global ISP/carrier-free messaging network

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#174

Earlier quoted context omitted.

If they were doing E2E encryption, that would not be a problem. Broadcasting to find the right recipient (the one with the decrypting key) but contents protected from everybody else.

Ok so how would key distribution work here? Tofu?

If you can meet once physically, there is nothing better than that to exchange your public keys. That's why hackers meetings are "public keys signing parties".

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#175

No closed source mesh networking can be secure. However good user experience it has. They are no different than using WhatsApp. Indeed in that respect at least Signal is better. I am not sure why protestors did not adopt the open source serval mesh project apk and ios app. [1] In Hong Kong given the density of building it's bit hard to have a line of sight, so it will still be hard to build a local network. But it's…

Is the point that it’s secure, or that it cannot be blocked?

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#176
post #26

I just tried the app via the US App Store and it requires you to verify through SMS before use. This means that it’s neither anonymous nor fit for use in a disaster zone. Good example of software that would be better if open source.

For an open source, anonymous version of this check out the Briar Project: https://briarproject.org/how-it-works/

Still quite useless, because key exchange process is so badly designed. But they've promised to fix this in future.

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#177
post #33

I find the idea interesting, but is there some kind of open-source alternative that would be available on F-Droid? This would be extremely useful since you can share your F-Droid archive over bluetooth, and that would also allow the app to be distributed the same way. One less way for the authorities to block the app from being acquired.

I think Manyverse is similar, although it too is just Android for now: https://www.manyver.se/

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#178

Hi everybody, I'm Jorge, founder of Bridgefy. Happy to answer any questions!

Hi Jorge, fyi I just browsed for Bridgefy on google and clicked on the first link that showed up and some random page turned up. It looked like it was hacked or something.

That happened to me as well. Can anyone explain to me how that works? Is there entire site hacked, but only triggered when coming from Google? Or does it work some other way?

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#179

No closed source mesh networking can be secure. However good user experience it has. They are no different than using WhatsApp. Indeed in that respect at least Signal is better. I am not sure why protestors did not adopt the open source serval mesh project apk and ios app. [1] In Hong Kong given the density of building it's bit hard to have a line of sight, so it will still be hard to build a local network. But it's…

> No closed source mesh networking can be secure. However good user experience it has. They are no different than using WhatsApp. Indeed in that respect at least Signal is better.

> I am not sure why protestors did not adopt the open source serval mesh project apk and ios app.

Because they don't share your value system, and chose a better user experience over a more secure system.

I want free software to win, which is perhaps a more extreme value system than yours (if you understand the difference between free software and open source software). But it strikes me as a bit naive to assume that free software will win on superior ideology alone. It's no coincidence that free software is winning in areas where it provides the best user experience (server OS-es, browsers) and losing in areas where it provides a worse user experience (user OS-es, most web applications).

Re: Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app

#180
post #144
post #142

Earlier quoted context omitted.

That's interesting. Does anyone have a further source or description of that behaviour?

It's required for emergency calls to quickly enable routing of said emergency call. They work even with no SIM or IMEI in the phone in some countries, though most western countries are starting to require SIM cards due to abuse (SWATting).

Any Links / docs discussing that? I didn’t find anything about this in a bit of searching.
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