27 mar 2007 kl. 10.48 skrev Tim Panton:
On 26 Mar 2007, at 22:32, Michael Graves wrote:
Hi All,
I've been reading about Phil Zimmermann's ZRTP encryption scheme for
SIP clients. This seems attactive but I don't use soft phones. I'm
guessing that we'd need ZRTP support in Asterisk in
order to use it to secure calls from hard phones.
There seem to be issues with SRTP key exhange between various
devices.
So much so that the IETF is working on a standardization project.
ZRTP,
which is one of the proposals before the
IETF, overcomes this. Since Zimmermann has open sourced the
protocol I
would hope that it could be implemented in Asterisk without too much
trouble.
Does the current work on SRTP extend into ZRTP?
At Etel I heard Phil Zimmermann say that he had a working
implementation
of ZRTP for asterisk in the lab.
We are working on the legal issues as well as issues on how to integrate
this properly, both from a code standpoint and a security standpoint.
/O
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