Re: [Linphone-users] linphone more about security - ZRTP on windows 3.6.0

[Lluís Batlle i Rossell]

On Wed, Jul 10, 2013 at 11:36:17AM +0200, Guillaume Beraudo wrote:
> The 3.6.0 release links on an old version of libzrtpcpp.
> 
> I cloned zrtpcpp master and observed that it would need work
> to use the latest zrtpcpp version.
> 
> It used to be possible to compile zrtpcpp without ccrtp.
> I couldn't manage to do it with this version; perhaps the new way require
> to move our ortp glue code directly in zrtpcpp.

In nixpkgs on GNU/Linux, we build linphone 3.6.1 with the latest libccrtp and
libzrtcpp without trouble. I don't have any patch for them, I didn't need it.

We use this recipe:
https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/networking/instant-messengers/linphone/default.nix

Regards,
Lluís.


> On Tue, Jul 09, 2013 at 05:02:04PM +0000, JC wrote:
> > does the newest stable release (3.6.0) contain the updated libzrtpcpp which 
> > does not contain these vulnerabilities: 
> > http://blog.azimuthsecurity.com/2013/06/attacking-crypto-phones-weaknesses-in.html
> >  
> > 
> > if 3.6.0 is still effected by the security flaws, what version of linphone 
> > will have them fixed,when will you release it?
> > 
> > 
> > 
> > On Monday, July 08, 2013 at 7:26 AM, "Guillaume Beraudo" <address@hidden> 
> > wrote:
> > >
> > >Hi,
> > >
> > >> >Open settings to enable TLS and ZRTP.
> > >> >The SAS will be displayed next to a lock pictogram in the 
> > >incall 
> > >> >view.
> > >
> > >> when these things are set enable and you see the SAS displayed 
> > >then conversation is end to end encrypted?
> > >
> > >At that point the conversation will be encrypted, both audio and 
> > >video.
> > >However, you are responsible as a participant to check the SAS and 
> > >authentify
> > >the peer you are communicating with.
> > >
> > >If picto, SAS and remote peer authentication are handled 
> > >correctly, then you can be
> > >sure that the communication is trully end-to-end encrypted.
> > >
> > >In this case both participants should validate the SAS which will 
> > >allow automatic
> > >checking for future communications with the same peer.
> > >
> > >
> > >Cheers,
> > >Guillaume
> > >
> > >On Fri, Jul 05, 2013 at 11:41:52AM +0000, JC wrote:
> > >> when these things are set enable and you see the SAS displayed 
> > >then conversation is end to end encrypted?
> > >> 
> > >> 
> > >> >Hi,
> > >> >
> > >> >ZRTP is present in release 3.6.0.
> > >> >However, version 3.6.1 has been released without ZRTP, by error.
> > >> >
> > >> >Open settings to enable TLS and ZRTP.
> > >> >
> > >> >The SAS will be displayed next to a lock pictogram in the 
> > >incall 
> > >> >view.
> > >> >
> > >> >
> > >> >Guillaume
> > >> >
> > >> >
> > >> >On Thu, Jul 04, 2013 at 08:17:23PM +0000, address@hidden 
> > >wrote:
> > >> >> > There are several choices:
> > >> >> > - TLS + srtp: the encryption is done using the certificate 
> > >on 
> > >> >the server;
> > >> >> > - ZRTP: the conversations are truly encrypted end-to-end 
> > >and 
> > >> >requires
> > >> >> > participants to check the SAS.
> > >> >> 
> > >> >> how do you check the sas as windows user using your free sip 
> > >> >servcice?
> > >> >> 
> > >> >> > As a consequence, even when using ZRTP you should still be 
> > >> >using TLS signaling 
> > >> >> > encryption.
> > >> >> 
> > >> >> how do you enable tls and zrtp is this enabled on default 
> > >when 
> > >> >using windows version with your sip service?
> > >> >> 
> > >> >> 
> > >> >> >> is there a portable version of linphone that is self 
> > >> >contained?
> > >> >> > On wich platform?
> > >> >> 
> > >> >> Windows
> > >> >> 
> > >> >> 
> > >> 
> > >> 
> > >> _______________________________________________
> > >> Linphone-users mailing list
> > >> address@hidden
> > >> https://lists.nongnu.org/mailman/listinfo/linphone-users
> > >
> > >_______________________________________________
> > >Linphone-users mailing list
> > >address@hidden
> > >https://lists.nongnu.org/mailman/listinfo/linphone-users
> > 
> > 
> > _______________________________________________
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> 
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