[messaging] Audible public-key fingerprints
Nathan of Guardian
nathan at guardianproject.info
Wed Aug 20 09:14:32 PDT 2014
On 08/20/2014 02:58 AM, Dominik Schuermann wrote:
> If you just want the property of limited
> physical audio propagation, I would like to present our work on this:
> (shameful advertisement following...)
> We use ambient audio to create a bitsequence which is identical enough
> on two devices. Based on this sequence we can start a confidential and
> authenticated communication. This method transmits no sounds on its own
> and just exploits existing ambient audio. We propose to use it in closed
> meeting rooms automatically because it is unobtrusive and requires no
> user interaction.
That is very interesting work, and maps well to a very real user stories
beyond the corporate conference room scenario you laid out, namely
coordination meetings among small activist groups, as well as in person
meetings between a journalist and source.
Thanks for sharing.
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