[messaging] The Simple Thing

Ben Laurie ben at links.org
Fri Oct 3 02:13:39 PDT 2014

On 3 October 2014 02:08, Tao Effect <contact at taoeffect.com> wrote:

> On Oct 2, 2014, at 3:25 AM, Ben Laurie <ben at links.org> wrote:
> "Keys will be non-repudiable and thus it will clear after an adverse
> event who facilitated the MITM attack."
> I still don't understand how this is true.  All that "we" see is that a
> key changed, which is a completely normal event and will be happening at
> a rate which is probably difficult for "us" to even keep up with.  All
> "we" really have is the word of the user that something in the log is
> inappropriate.  I don't see any other real definitive "proof."
> So what's the difference between CT and "the simple thing?"  In both
> cases, all we have is the word of the user that something they claim to
> be amiss is amiss.
> The difference is that with CT the user whose key changes necessarily
> becomes aware that it has changed. In "the simple thing?" only the
> targeted user of the key is aware of this change.
> How is the owner of the key informed about the key change?

Software holding the key monitors the log(s) for key changes.
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