Signal messenger blocked in Russia, says Roskomnadzor(www.reuters.com)

posted 3 months ago

Nemeski@lemm.ee

technology@lemmy.world

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[ - ]

brrt@sh.itjust.works

45 points

3 months ago

I could put on my tinfoil hat and say if signal is blocked but telegram isn’t, maybe that means that telegram isn’t as secret as they make it out to be.

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woelkchen@lemmy.world

-2 points

3 months ago

It’s open source. Look can up the encryption yourself.

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[ - ]

Varcour@lemm.ee

21 points

3 months ago

No need, all you have to do is read the whitepaper. they home brewed the encryption algorithm and nobody actually knows if it’s worth a damn. That’s not exactly a secret.

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Andromxda 🇺🇦🇵🇸🇹🇼@lemmy.dbzer0.com

4 points

3 months ago

And it isn’t even encrypted by default, you manually have to enable that. By default, all your plain text messages are stored on their servers.

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[ - ]

woelkchen@lemmy.world

3 points

3 months ago

nobody actually knows if it’s worth a damn.

After all these years, security researchers still don’t know if the encryption is any good?

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[ - ]

HarriPotero@lemmy.world

11 points

3 months ago

On that level it usually falls on computer scientists. Formal methods can prove that any implementation is correct, but proving the absence of unintended attacks is a lot harder.

Needham-Schroeder comes to mind as an example from back when I was studying the things.

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[ - ]

woelkchen@lemmy.world

-1 points

3 months ago

On that level it usually falls on computer scientists.

And not a single one has been able to analyze the encryption in all these years? Fact is, Telegram is the tool the Russian opposition and even Ukrainians use to communicate without Putin being able to infiltrate.

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[ - ]

HarriPotero@lemmy.world

2 points

3 months ago

No. It kind of falls on Dijkstra’s old statement. “Testing can only prove the presence, not absence of bugs.”

You can prove logical correctness of code, but an abstract thing such as “is there an unknown weakness” is a bit harder to prove. The tricky part is coming up with the correct constraints to prove.

Security researchers tend to be on the testing side of things.

A notable example is how DES got its mixers changed between proposal and standardisation. The belief at the time was that the new mixers had some unknown backdoor for the NSA. AFAIK, it has never been proven.

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[ - ]

doodledup@lemmy.world

12 points

3 months ago

They don’t have reproducible builds afaik (unlike Signal). You can have a completely different code running on your phone than on GitHub.

Besides, who is using Secret Chat anyways? All default chats and group chats are unencrypted.

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[ - ]

woelkchen@lemmy.world

0 points

3 months ago

You can have a completely different code running on your phone than on GitHub.

Just use the F-Droid version if there is any doubt.

Besides, who is using Secret Chat anyways?

Probably Russians who used Signal before.

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doodledup@lemmy.world

7 points

3 months ago

The F-droid version is also not reproducible. The binary you install has a different hash than the one you build from the GitHub.

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Nonononoki@lemmy.world

1 point

3 months ago

It’s reproducible if you compare it with F-droid’s tarball, which has all the source code in it.

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woelkchen@lemmy.world

0 points

3 months ago

The F-droid version is also not reproducible. The binary you install has a different hash than the one you build from the GitHub.

F-Droid builds from source, so any suspicion whether the Google Play version has been tampered is completely irrelevant for the F-Droid version.

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[ - ]

3 points

3 months ago

Can it be proven that that encryption is what’s used in practice?

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[ - ]

woelkchen@lemmy.world

-5 points

3 months ago

Just use the F-Droid version if there is any doubt.

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Andromxda 🇺🇦🇵🇸🇹🇼@lemmy.dbzer0.com

2 points

3 months ago

What about iOS users?

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woelkchen@lemmy.world

1 point

3 months ago

What about iOS users?

Apple is not selling iPhones in Russia after the beginning of the invasion.

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Andromxda 🇺🇦🇵🇸🇹🇼@lemmy.dbzer0.com

1 point

3 months ago

Ah yes, because everyone just throws away their phone after 2 years. People definitely haven’t purchased iPhones before the invasion.

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