Re: whatsapp interoperability

On 11.09.24 18:13, s|b wrote:

On Wed, 11 Sep 2024 11:15:46 +0100, Richmond wrote:
 

Whatsapp uses the Signal protocol. How did they make open source into
closed source? "The Signal Protocol is licensed under the GNU Affero
General Public License (AGPLv3). This license requires that the complete
source code of the licensed work and any modifications be made available
under the same license."

 
I don't know the details, but someone explained it like this:
 
A Signal user sends a message to a WA user. The encryption is:
 
aZ*2
 
When it reaches the servers at WA something gets added:
 
aZ*2[Vy*3]
 
This way data could be gathered by Meta. Meta doesn't give access to
Signal to check if something like this doesn't happen.
 
I don't know if I'm explaining correctly, but if Signal doesn't want to
cooperate they must have a damn good reason.

No: Signal has absolutely no intention to break their encryption which
is a condition for interoperability. Would Signal do that I would drop
it immediately. Signal uses an end-to-end-encryption which WA does not
really. Alternative suppliers like Signal, Threema, iMsg or Telegram
would commit immediate suicide if they would follow that route.

--
"De gustibus non est disputandum."