[messaging] Deniable authenticated group messaging

[Ben Laurie]

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?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://moderncrypto.org/mail-archive/messaging/attachments/20150417/29b383b2/attachment.html>