Re:China has wealth of data on what individuals are doing at...
by kuschku on Thursday January 12, 2017 @08:56AM
(#13382177)
> #4 if some agency "takes over" the Signal servers, they can extract metadata. But only that?
With Signals model, as long as everyone verifies fingerprints, yes.
But, considering XMPP is a thing, XMPP with OMEMO provides all the same guarantees – and you can make it less likely that an agency has taken over the relevant servers (because you can self-host easier).
Signal’s use case is "something as secure as OTR, but easier to use".
I’m not saying you should use something else than Signal, but I’m saying that Signal isn’t ideal if your adversary is a government.
With Signals model, as long as everyone verifies fingerprints, yes.
But, considering XMPP is a thing, XMPP with OMEMO provides all the same guarantees – and you can make it less likely that an agency has taken over the relevant servers (because you can self-host easier).
Signal’s use case is "something as secure as OTR, but easier to use".
I’m not saying you should use something else than Signal, but I’m saying that Signal isn’t ideal if your adversary is a government.