[ajamesm]

I'm not a fan of opaque baseband firmwares either, don't get me wrong, but what's the alternative? Not for the DoD, I mean for union organizers making $50k a year -- people who aren't going to get murdered by Mossad, but still need to authenticate and encrypt their communication channels. What device would you recommend?

[voltagex_]

Who's the likely threat to union organisers? I suspect a pair-locked iPhone with Signal or Whatsapp would be more than secure enough.

[ajamesm]

The most prominent example would be https://en.wikipedia.org/wiki/Jimmy_Hoffa

and then the long, storied history of American strike-breaking &c.

[kuschku]

Well, either the threat is a private group, then WhatsApp or even Google Hangouts is secure enough.

Or the threat is a government, then Signal is not secure enough either, because the US govt can just force Google and OWS to ship modified APKs.

[ajamesm]

conflating the specific binary instantiation with the general cryptosystem. Regardless, depending on your threat model, you can take increasingly { reasonable | paranoid } precautions like manually compiling and loading Signal, as it's OSS.

edit: "private group" can encompass a lot, especially in other ecosystems like Google and FB. If said "private group" adversary is, say, a prominent and wealthy Silicon Valley businessman and enterprising vampire who collaborates with fascists, then you can see the potential of compromising someone's security by coercing Google or Facebook engineers to run you a Hadoop query or conditionally inject malicious JS.

[kuschku]

> like manually compiling and loading Signal, as it's OSS.

Except, I’d have to modify the code, as the current version depends on Google’s proprietary libs, which I can’t inspect. And I lose half of the functionality, as RedPhone is also proprietary.

> by coercing Google or Facebook engineers to run you a Hadoop query or conditionally inject malicious JS.

The same can be done by coercing OWS engineers to backdoor their services.

And in any case, Signal can start collecting metadata any minute now, and there’s nothing we could do against it.

[temprature]

> And I lose half of the functionality, as RedPhone is also proprietary.

The source code for the Redphone client is here: https://github.com/WhisperSystems/Signal-Android/tree/master...

The source code the redphone-audio library is here: https://github.com/WhisperSystems/Signal-Android/tree/master...

Stop spreading misinformation.