The Signal messenger and protocol.

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Signal crossover to other messaging apps (sopuli.xyz)

submitted 1 week ago by qyron@sopuli.xyz to c/signal@lemmy.ml

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Some time ago, I read an article that all messenger apps, by EU directive, would have to build bridge protocols in order to have flow of communication between different networks.

Surfing the web, I read an article from 2016 where the Signal protocol was being integrated into Whatsapp. More recently, I read that Signal and Telegram could communicate.

What is the true status on this? The more I search, the more contradicting information I seem to find.

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[–] LambdaRX@sh.itjust.works 5 points 1 week ago

This EU directive is formed to counter big walled gardens, like WhatsApp system. Signal could request interoperability, but isn't interested, because it would lower security of conversations.

[–] mp3@lemmy.ca 4 points 1 week ago

I believe WhatsApp, FB Messenger and Google's RCS are using the same encryption protocol (TextSecure) for key exchange, but the platforms aren't bridged as far as I know.

It will likely require a bit more work for the platforms to be interoperable.

[–] LWD@lemm.ee 1 points 1 week ago

If you read something to the effect of "Signal and Telegram can communicate," it was probably in relation to the Beeper ~~disaster~~ app. I wouldn't recommend that, because their entire gimmick was collecting all your messages on their servers for your convenience, defeating the whole point of Signal's encryption.

[–] sic_semper_tyrannis 1 points 1 week ago

I learned this recently from a fellow Lemmy user when I made a comment on the topic. https://www.androidpolice.com/signal-threema-nothing-to-do-with-whatsapp-eu/