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Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

(github.com)
770 points ananddtyagi | 3 comments | 07 Jul 25 00:05 UTC | HN request time: 0.42s | source
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sardine5 ◴[07 Jul 25 03:22 UTC] No.44486454[source]▶
A bit different, as it's mainly for voice - but I made an app 'Murmur : Bluetooth Group Calls' - that lets you hold group voice calls and message via a mesh of Bluetooth LE connections. It's available on Android and iOS. https://apps.apple.com/gb/app/murmur-bluetooth-group-calls/i...

Doesn't really get any downloads, so not sure there's much demand for this - but I use it with some shokz bone conducting headphones for talking to my wife when we're cycling (also for wrangling our two small girls)

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1. LWIRVoltage ◴[07 Jul 25 04:59 UTC] No.44486896[source]▶
Okay, this is neat! A true mesh networking bluetooth app- The other one that's notable, Briar is super impressive - but i think it doesn't actually have proper mesh capability due to difficulties with how devices handle things

(See: https://old.reddit.com/r/Briar/comments/gxiffy/what_exactly_...

https://news.ycombinator.com/item?id=43363031 }

Anyway, -Question: I take it Murmur is end to end encrypted fully? Also, just curious if this is open source?

This could become SUPER useful- having a actual mesh networking Bluetooth app , if it's open source/E2EE!

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2. sardine5 ◴[07 Jul 25 05:04 UTC] No.44486921[source]▶
It's AES128 encrypted with a key derived from the group password.
3. subscribed ◴[07 Jul 25 08:02 UTC] No.44487811[source]▶
I'll try this app because Briar never worked between any of my devices (all Androids)