Packet data has headers that can identify where it's coming from and where it's going to. The contents of the packet can be securely encrypted, but destination is not. So long as you know which IPs Signal's servers use (which is public information), it's trivial to know when a device is sending/receiving messages with Signal.

This is also why something like Tor manages to circumvent packet sniffing, it's impossible to know the actual destination because that's part of the encrypted payload that a different node will decrypt and forward.

I run a cryptography forum

Encryption doesn't hide data sizes unless you take extra steps

Yeah this is insanely good

How exactly do you think encryption prevents the analysis of seeing when an encrypted message is sent? It feels like you're trying to hand-waive away by saying "encryption means you're good!"

Cyber security is not my thing, but my understanding is that you'd still see network traffic - you just wouldn't know what it says.

The tech behind the tool conceals the fact that messaging is taking place at all. It makes the communication indistinguishable from data sent to and from the app by our millions of regular users.

Reminds me of how the Germans in WW1 knew they couldn't trust their diplomatic codes anymore so they just sent the important messages in the normal, innocuous telegraph system and diplomatic pouches. They knew that foreign intelligence would be focused on the bogus secure messages.

How are they analyzing network traffic with Signal? It's encrypted

Not my specialty, but signals end to end encryption is akin to sealing a letter. Nobody but the sender and the recipient can open that letter.

But you still gotta send it through the mail. That's the network traffic analysis that can be used.

Here's an example of why that could be bad.

Criminalization of encryption : the 8 december case

This article was written on the basis of information related to the so-called "8 December" case (see the footnotes for a global overview of the case, we focus on the "numerical part" of it in this articleFor a summary of the 8 December affair see in particular the testimonies available in thi

La Quadrature du Net (www.laquadrature.net)

For France, Your a terroriste if you use signal

Then you're also a terrorist if you use The Guardian ‍️

How dumb are you? Like someone said the point is they can see the fact that you sent a secured message period. Not with the guardian app though. Pretty easy to comprehend so I am confused why you are acting so stupid.

Then you're a terrorist if you use the internet, period

Nearly all internet traffic if encrypted, and for plain browser traffic it's probably in the 95+%

You access your bank? Terrorist! Email? Terrorist! Lemmy? Terrorist!

Like someone said the point is they can see the fact that you sent a secured message period. Not with the guardian app though.

The entire point of the article in the OP is that you can send secured messages with The Guardian app. ‍️

Packet data has headers that can identify where it's coming from and where it's going to

Wouldn't you have to have some sort of MITM to be able to inspect that traffic?

This is also why something like Tor manages to circumvent packet sniffing

TOR is what their already-existing tip tool uses.

I dunno, I am not the French state. I can only see that they think the usage of signal is making you a terrorist.

I dont' know, do you have sources about this ?
Or are you imagining thing and deciding it is true ?

Sources for what, exactly? What is "fantasming"? The title of the article you posted is "Criminalization of encryption". The Guardian is using encryption to send messages, so why would they be exempt? In fact, why would any internet use at all not be criminalized? It's all encrypted.

Wouldn't you have to have some sort of MITM to be able to inspect that traffic?

You mean like your workplace wifi that you're blowing the whistle at?

So you read the title and you know everything.
There is a liste of what they are accusing and their is no mention of internet

The elements of the investigation that have been communicated to us are staggering. Here are just some of the practices that are being misused as evidence of terrorist behavior6:

– the use of applications such as Signal, WhatsApp, Wire, Silence or ProtonMail to encrypt communications ;

– using Internet privacy tools such as VPN, Tor or Tails7 ;

– protecting ourselves against the exploitation of our personal data by GAFAM via services such as /e/OS, LineageOS, F-Droid ;

– encrypting digital media;

– organizing and participating in digital hygiene training sessions;

– simple possession of technical documentation.

But continue to invent reality. What are fact if not debatable point of view ?
That the end for me.
Have a great day.

Yes, the guardian app allows you to send encrypted messages through their app to their journalists. 100,000 people check the news, one person is whistleblowing. That one person's messaging traffic is mixed in with the regular news data, so it's not possible to tell which of those 100,000 people are the source. Signal messages travel through their servers, so anyone inspecting packets can see who is sending messages through signal, just not what the messages contain. Thats a big red arrow pointing to only people sending encrypted messages. With this implementation, those people are mixed in with everyone else just reading news or even just having the app on their device.

I don't know everything. Just because it's not explicitly listed today doesn't mean it won't be tomorrow. This was just created yesterday. And it does the same thing that all of those listed apps do: facilitates private communication.

100,000 people check the news, one person is whistleblowing.

There are many many more people using Signal to yell at their kids to do the dishes or some shit. Not whistleblowing.

Thats a big red arrow pointing to only people sending encrypted messages.

Everyone is using encrypted messages...