[OTR-users] multi-party OTR communications? (and other OTR details)

[Ian Goldberg]

On Wed, May 27, 2009 at 10:00:19PM -0400, Ian Goldberg wrote:
> On Wed, May 27, 2009 at 03:44:00PM -0400, Micah Anderson wrote:
> > Ian Goldberg <ian at cypherpunks.ca> writes:
> > 
> > > On Mon, Sep 22, 2008 at 11:06:54AM -0400, Daniel Kahn Gillmor wrote:
> > >> Thanks for the reply, Ian!
> > >> 
> > >> On Mon 2008-09-22 09:29:32 -0400, Ian Goldberg wrote:
> > >> 
> > >> > there are a couple of people working on just what a group version of
> > >> > OTR should look like, and what its properties should be.
> > >> 
> > >> Where is this discussion taking place?  I'd be interested in
> > >> participating, though i don't have a ton of time to do so.
> > >
> > > A couple of people are conversing by email, as far as I know.
> > 
> > I was pretty excited to see that this discussion was going on (even if
> > it was not on a public list that I could follow). However its been 8
> > months since then, and I haven't seen anything come of this. 
> > 
> > Was there any progress that can be reported? 
> > 
> > Thanks, I'm really looking forward to multi-party OTR,
> 
> We recently submitted a paper on the topic to the ACM conference on
> Computer and Communications Security; it will likely appear online at
> some point as a technical report, at the very least, and when it does,
> I'll be sure to post a link to it here.
> 
> It's still in the "work out the cryptographic details and have them
> vetted" stage, though; well before the "write code" stage.

Here's the tech report, posted moments ago.

Ian Goldberg, Berkant Ustaoğlu, Matthew Van Gundy, Hao Chen.
"Multi-party Off-the-Record Messaging". CACR Tech Report 2009-27. 11
pages. June 2009.
http://www.cacr.math.uwaterloo.ca/techreports/2009/cacr2009-27.pdf

   - Ian