My use case is client-server group conferencing, not p2p.  

Everyone has already logged into a particular room, and per-group passwords are 
used for ICE.  The fact that a client has a valid ice-ufrag and the group 
password means that they have already been authorized.  I could modify the 
system for separate ice passwords, but it would not improve security, and would 
add complexity.

This same issue came up on discuss-webrtc a while back.  Where once Chrome did 
not allow changing ice-ufrag and ice-pwd, eventually they decided to allow it, 
and it has been so for many releases now. 


On Wednesday, June 26, 2013 9:49:58 AM UTC-7, Adam Roach wrote:
> On 6/26/13 11:39, bryandonnovan wrote:
> 
> > Is it possible to modify the ice-ufrag and ice-pwd in the SDP returned by 
> > createAnswer?
> 
> >
> 
> > It has no effect when I modify the SDP before calling setLocalDescription.
> 
> >
> 
> > Is this a known issue?  Should I file a bug?
> 
> 
> 
> See https://bugzilla.mozilla.org/show_bug.cgi?id=784514
> 
> 
> 
> However, note that the W3C has not yet determined what parts of SDP the 
> 
> scripts are allowed to edit, and which parts are immutable. If we had 
> 
> the conversation today, I'm pretty sure the ufrag and password would not 
> 
> be considered candidates for editing.
> 
> 
> 
> To put a finer point on it: I'm probably the one who will be 
> 
> implementing the SDP editing handling, and I did not plan on allowing 
> 
> these values to be changed. Can you explain why you would want to do this?
> 
> 
> 
> -- 
> 
> Adam Roach
> 
> Principal Platform Engineer
> 
> [email protected]
> 
> +1 650 903 0800 x863
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