[OTR-dev] OTR over SIP?
abel at guardianproject.info
Tue Mar 19 17:48:13 EDT 2013
Nathan of Guardian:
> "Daniel ".koolfy" Faucon" <koolfy at koolfy.be> wrote:
>> On Tue, 19 Mar 2013 08:06:38 +0000
>> Nathan of Guardian <nathan at guardianproject.info> wrote:
>>> Jitsi supports short/instant messaging via SIP-over-TLS. Jitsi
>>> supports OTR.
>>> Anyone have any success doing OTR-over-SIP?
>> Jitsi uses ZRTP for the SIP encryption, I don't remember if ZRTP
>> provides PFS or not, if I recall correctly it does. So it's kind of
>> "OTR for SIP"-ish...
>> Is that what you meant?
>> (I tried to make it work with the previous version of Jitsi but had
>> problems with Jitsi bugs, I should try with the last version. I have
>> heard of friends who made it work flawlessly so it shouldn't be too
> Actually I meant specifically for the text messaging aspect of SIP and not voice/video/media stream.
This is an important distinction.
"Jitsi uses ZRTP for the SIP encryption" isn't a true statement. SIP
generally uses TLS to achieve confidentiality. ZRTP is only for the
media stream, which is separate from SIP.
wrt original question: I think Jitisi's support for OTR is in the IM
features (xmpp et. al) not the SMS feature.
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