[messaging] Deniable authenticated group messaging

Ben Laurie ben at links.org
Fri Apr 17 10:37:39 PDT 2015


On 17 April 2015 at 11:54, Michael Rogers <michael at briarproject.org> wrote:

> Members should be able to send messages to the group, such that any
> member of the group can verify that a message was written by the owner
> of a particular signature key, but can't prove it to anyone outside the
> group.
>

Isn't this a fantasy requirement? That is, if I am a member of the group
and I want to prove it to someone outside the group, don't I just have them
look over my shoulder?
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