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Briar: Peer-to-Peer Encrypted Messaging

briarproject.org

41–50 of 145 posts

Re: Briar: Peer-to-Peer Encrypted Messaging

#41

My wife and I use Briar for household communication because of subsidiarity rather than any direct privacy concerns. Out of all the messenger projects that we've tried, Briar actually works for local communication. It's actually instant messaging without any client hiccups or latency (looking at you, Signal). We've tried a ton of other options, but we keep ending up back at Briar. There are points of UX friction in t…

> It's actually instant messaging without any client hiccups or latency (looking at you, Signal). This is almost certainly poor wifi / cell coverage, not Signal having "hiccups" or "latency." I routinely have real-time texting conversations with friends and I can see the messages are "seen" almost instantaneously, half-way across the US. I've also never had an issue with voice chat. It's been flawless, and very high…

Can you give more info on the data reporting options that we should be disabling?

Re: Briar: Peer-to-Peer Encrypted Messaging

#42

My wife and I use Briar for household communication because of subsidiarity rather than any direct privacy concerns. Out of all the messenger projects that we've tried, Briar actually works for local communication. It's actually instant messaging without any client hiccups or latency (looking at you, Signal). We've tried a ton of other options, but we keep ending up back at Briar. There are points of UX friction in t…

> It's actually instant messaging without any client hiccups or latency (looking at you, Signal). This is almost certainly poor wifi / cell coverage, not Signal having "hiccups" or "latency." I routinely have real-time texting conversations with friends and I can see the messages are "seen" almost instantaneously, half-way across the US. I've also never had an issue with voice chat. It's been flawless, and very high…

> This is almost certainly poor wifi / cell coverage, not Signal having "hiccups" or "latency."

Signal is very finicky about that, though. I have friends who prefer Whatsapp simply because they don’t have to worry about connection stability. With Signal, you sometimes don’t even know if messages actually arrived or not.

Re: Briar: Peer-to-Peer Encrypted Messaging

#43

Earlier quoted context omitted.

Sorry I may have communicated this poorly. We were connected to the local area network, but we had no Internet access (which was behind a paywall). However, only being connected to the local network was sufficient for Briar -- no Internet needed!

To be fair, it would absolutely be possible to set up a hotspot where all the clients were jailed and invisible to each other, had IPs in different subnets, whatever. Conventionally, I guess that sort of isolation doesn't typically happen as it's more work to set up and only really benefits users (privacy from each other), but maybe if more apps figure out how to take advantage of this things could change.

It’s not really more work; it’s just a matter of enabling the ‘client isolation’ setting on the wireless AP.

For example, see Cisco’s Meraki documentation: https://documentation.meraki.com/MR/Firewall_and_Traffic_Sha...

> With Client Isolation enabled, clients will only be able to communicate with the default gateway and will not be able to communicate with any other devices on the same VLAN (or broadcast domain). In order for the wireless client to communicate with another device, the upstream gateway must be used to enable this communication (e.g. inter-VLAN routing and ACLs). Any traffic bound for an address on the same VLAN as a device in client isolation will be denied. Traffic bound for other VLANs will be forwarded and routed normally.

Re: Briar: Peer-to-Peer Encrypted Messaging

#45

Earlier quoted context omitted.

> It's actually instant messaging without any client hiccups or latency (looking at you, Signal). This is almost certainly poor wifi / cell coverage, not Signal having "hiccups" or "latency." I routinely have real-time texting conversations with friends and I can see the messages are "seen" almost instantaneously, half-way across the US. I've also never had an issue with voice chat. It's been flawless, and very high…

> This is almost certainly poor wifi / cell coverage, not Signal having "hiccups" or "latency." Signal is very finicky about that, though. I have friends who prefer Whatsapp simply because they don’t have to worry about connection stability. With Signal, you sometimes don’t even know if messages actually arrived or not.

Especially on Signal Desktop, its more reliable to close the app and reopen it than wait for it to reconnect to the server.

Meanwhile Element reconnects to Matrix super quick...

Re: Briar: Peer-to-Peer Encrypted Messaging

#46

Briar, for when security and deliverability of your messages aren't really the point...

I understand why you don't think Briar has good deliverability. But what makes you think that the security of Briar messages is suspect?

If he had an argument, he'd have presented it in his post.

Re: Briar: Peer-to-Peer Encrypted Messaging

#47
post #3

> The adversary has a limited ability to monitor short-range communication channels (Bluetooth, WiFi, etc). That seems like a pretty big assumption. From what i understand there already exists deployment of wifi hot spots to track people (both for advertising purposes and for spying purposes) to the extent that phone providers started radomizing MAC addresses.

Cisco’s meraki has that built into their devices. I run meraki in my home and have it enabled and it’s pretty powerful. If you see a wifi network, it most certainly can track you and if it’s not a residential network, I assume it is.

This is why I don’t like the automatically re-enabling wifi setting on iOS.

Yes you can still turn it “really off” in settings (until the phone reboots again) and yes I put a shortcut on my home screen to turn wifi/bluetooth all the way off in one click, but probably barely anyone is doing those things because it’s inconvenient/they don’t know/they forget.

Re: Briar: Peer-to-Peer Encrypted Messaging

#48

Just wanna say this app saved my family and I when we went on a cruise. Normally, we would had had to pay to use the chat service via the ship's paid-only Wi-Fi (since we get no phone reception on the seas). Without needing to pay for the Wi-Fi, we were all able to use Briar to communicate whilst connected to the network, which made coordinating and finding each other on the ship way easier. It was great and worked r…

I'm a bit torn about this. On one hand, it definitely makes coordinating things last minute easier on a cruise ship. On the other hand, to me being nearly forced to untether is most of the reason for going on a cruise, so still carrying my phone around with me even if only to message family is partially missing the point!

Maybe I'll feel different with kids on a cruise ship, but honestly I enjoyed the freedom of spending my day with nothing but a wristband for everything I wanted.

Re: Briar: Peer-to-Peer Encrypted Messaging

#49

Earlier quoted context omitted.

Check out https://berty.tech for direct off network communications when you do not have internet.

How does this work? Do the two devices still need to be on some sort of net work accessible to each other? Two cell phones not on the same Wi-Fi are going to have a hard time talking to each other buy anything other than Bluetooth, no?

It is Bluetooth (Low Energy), yep. https://berty.tech/features

Re: Briar: Peer-to-Peer Encrypted Messaging

#50
post #5

Briar is nice, too bad they don't have a Linux app (only an Android app)... Also, it chews through battery in no time.

The battery is a bigger problem. You can work around OS issues but if yourun out of battery at the same time you are cut off from normal communications you now have two major problems, and your expedited/unexpected disappearance from the conversation creates unnecessary anxiety for others. I hope they make fixing this a priority, it's a serious shortcoming.
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