[flerchin]

So you'd make your phone calls in the clear?

[SV_BubbleTime]

Are you implying that calls made from smart phones are anything but on the clear? Are you making all your voice calls using some merging other than the phone app?

[Tepix]

Many calls are made using apps these days. WhatsApp alone had more than 15 billion voice minutes on average per day back in 2020.

If your phone and the phone of the other party are not compromised, it is indeed possible to conduct end-to-end encrypted calls with perfect forward secrecy.

[Scoundreller]

Trick is to do the on-the-fly encryption and decryption in your own brain.

Getting the key length up is a real challenge tho.

But WhatsApp (or… anything) would be great if it could easily share PGP coded messages scanned in via QR codes.

[BobbyJo]

> If your phone and the phone of the other party are not compromised, it is indeed possible to conduct end-to-end encrypted calls with perfect forward secrecy.

That's something you can never rely on though.

[SV_BubbleTime]

And let’s be honest, you would be foolish to think WhatsApp isn’t compromised by intelligence agencies.

[predictabl3]

I uh, y'all do know there are open source voip apps, right? You can fire up most any popular Matrix client and call me E2EE right now.

[Scoundreller]

And has been used as a vector of device compromise itself.

[cj]

A lot of people (especially outside the US) use whatsapp, etc, for calling which happens over data/wifi rather than traditional cellular.