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Re: [Cryptography] The crypto behind the blackphone

daemon@ATHENA.MIT.EDU (Jon Callas)
Mon Jan 27 16:36:03 2014

X-Original-To: cryptography@metzdowd.com
From: Jon Callas <jon@callas.org>
In-Reply-To: <alpine.LFD.2.11.1401271738430.10450@lap.senderek.ie>
Date: Mon, 27 Jan 2014 13:28:09 -0800
To: Ralf Senderek <crypto@senderek.ie>
Cc: Cryptography <cryptography@metzdowd.com>, Jon Callas <jon@callas.org>
Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com

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On Jan 27, 2014, at 8:56 AM, Ralf Senderek <crypto@senderek.ie> wrote:

> My question is not difficult to understand:
> =

> We have the "real problem" that although we have the proper tools, almost=
 nobody is using them today. Some of us find that undesirable and try to do
> something about that. We've come to the point that we need something new
> but don't know exactly what it will be and if the "old tool" will be used
> in new ways or be replaced by something entirely new.
> =

> And now Phil comes up with the blackphone, claiming that "Blackphone prov=
ides users with everything they need to ensure privacy and control of their=
 communications, along with all the other high-end Smartphone features they=
 have come to expect.=94
> =

> If you expect everyone to subscribe to a proprietary, in-house solution t=
o exchange secure messages, that would be easy. Solving the "real problem"
> will require much more than using a special device. A real solution must
> work on all devices in a way that users actually use crypto.
> =

> That's why I asked what crypto will do that job.

Thanks!

You cut to *precisely* one of my points. Usability is all. We have to have =
things that people will use.

Crypto matters to this in the same way that concrete relates to building st=
rong buildings. It's often a good idea, not the whole solution, and nothing=
 to do with whether people want to live in it.

	Jon


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