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Is Telegram really an encrypted messaging app? (blog.cryptographyengineering.com)

submitted 2 months ago by solrize@lemmy.world to c/privacy@lemmy.ml

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Blog post by crypto professor Matthew Green, discussing what Telegram does (I wasn't familiar with it) and criticizing its cryptography. He says Telegram by default is not end-to-end encrypted. It does have an end-to-end "secret chat" feature, but it's a nuisance to activate and only works for two-person chats (not groups) where both people are online when the chat starts.

It still isn't clear to me why Telegram's founder was arrested. Green expresses some concern over that but doesn't give any details that weren't in the headlines.

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[-] sunzu2@thebrainbin.org 1 points 2 months ago

I have no doubt that signal will turn over whatever they had but does they have the info about who is contacting who?

I was explained that they don't

Obvi all this shit is a trust me bro

[-] yogthos@lemmy.ml 1 points 2 months ago

As far as I know, nothing in the protocol prevents the server from connecting who is talking to whom. In fact, given that the phone number is how an account is identified, the server effectively has to do this in order to pass messages between people.

this post was submitted on 25 Aug 2024

133 points (96.5% liked)

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