[Cryptography] The crypto behind the blackphone

[Jon Callas]

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On Jan 27, 2014, at 8:56 AM, Ralf Senderek <crypto at 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 provides 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.”
> 
> If you expect everyone to subscribe to a proprietary, in-house solution to 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 strong 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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