Has this been used in any projects?

[wtip]

Are there any public open source projects that this code has been used in?

Would it be possible to use this code to create a program that would intercept un-encrypted SIP RTP traffic and apply ZRTP encryption? I am trying to do the same thing that the Zfone software does.

I am envisioning putting this on a little ARM powered device with two network cards and a small LCD. This device would sit between a standard SIP office phone and your network. The device would allow you to make any SIP hardware phone ZRTP compatible for very little cost.

[wernerd]

Am 07.09.2013 20:26, schrieb wtip:

Are there any public open source projects that this code has been used in?

I don't know this. Usually developers/projects don't give any feedback until they
face a problem :-) .

Actually, as you may have noticed, the gstreamer filter is just a simple (more or
less simple) filter that uses the real ZRTP stack. This ZRTP stack is stable, has
been peer-reviewed several time, and is used in many projects.

Enhancing the gstzrtp filter is not really complex.

Would it be possible to use this code to create a program that would intercept un-encrypted SIP RTP traffic and apply ZRTP encryption? I am trying to do the same thing that the Zfone software does.

IMHO possible - however, not easy. It mainly depends how you handle the SIP stack, the inter working between
SIP and the RTP stream. Zfone was/is software that listens on every SIP connection its RTP stream, even
multiple clients on one PC, for example. IF you could make it a more 1-to-1 relationship between the office
phone and the "bump-in-the-wire" it might be easier. The connection management, the SIP/RTP, SIP/SRTP/ZRTP
handling would become less complex than in Zfone for example.

Werner

I am envisioning putting this on a little ARM powered device with two network cards and a small LCD. This device would sit between a standard SIP office phone and your network. The device would allow you to make any SIP hardware phone ZRTP compatible for very little cost.

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Werner Dittmann Werner.Dittmann@t-online.de
Tel +49 173 44 37 659
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[dzzinstant]

Hi there,

not really related to William's idea, but to give some feedback and a reply to the first question:

I'm using gstzrtp for a plug-in to the Pidgin instant messenger (status: early alpha)
https://gna.org/projects/pidgin-zrtp/
It's a bit tricky, because the zrtpfilter elements are relinked into the (already set up, but not yet running) farstream pipeline;
this is to make the plugin work with official Farstream and Pidgin distributions (no patching needed).

The plugin still has some fatal bugs (and the code isn't very pretty), but audio-only connections between Pidgin and Jitsi sort-of work.

Dustin