Re: [Linphone-developers] do audio and video are encrypted in ZRTP mode ?

[Johan Pascal]

Hi,
yes linphone support video stream encryption using ZRTP key exchange.

There is no really need to announce ZRTP support in the INVITE as ZRTP 
support is basically announced by sending/waiting for ZRTP Hello packet.

It shall work on all platform, including mac.

johan

On 08/09/15 18:56, Eeri Kask wrote:
> On Tue, 08 Sep 2015 09:38:29 +0200, Werner Dittmann wrote:
> > If Linphone implemented it correctly (which I don't know) then
> > also the video stream(s) are encrypted, at least ZRTP provides the
> > features to do this :-) .
>
> 'm usually using zrtp-encoded audio+video sessions from android-linphone
> to android-linphone (in long-distance calls video sometimes gets stuck
> on call setup though), and from pjsua-desktop-client which has the
> abovementioned ZRTP implementation to android-linphone; but not managed
> to establish a zrtp-session from anything to WP8-based linphone!
>
> (Linphone didn't (or does not) announce anything zrtp-related during
> session INVITE, so the other endpoint has to know about upcoming zrtp
> content by other means.)
>
> (Some time ago linphone-on-macosx while advertising supporting zrtp,
> didn't support video-zrtp (or I simply didn't manage to get it to work),
> and even didn't inform the user about not encoding video!  Haven't
> tested again since then.)
>
>      Eeri Kask
>
> > Am 07.09.2015 um 19:23 schrieb ???? ?????:
> > > Hello everyone,
> > >
> > > I want to know that if you activate ZRTP encryption, do the video AND the audio 
> > > are encrypted in video conference or only the audio ?
> > >
> > > I tested for the audio, and it's indeed encrypted, but don't have the tool to 
> > > check for the video!
>
>
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