I went over the code. AES128 is the only algorithm that is suppored today. More importantly there are some concerns on the vulnerability as discussed in http://lists.digium.com/pipermail/asterisk-security/2005-August/000060.html. People are using UDP VPNs to satisfy customer requirements. http://lists.digium.com/pipermail/asterisk-users/2005-August/120293.html
Thanks
-Scott
------------------------------
Message: 6
Date: Wed, 28 Sep 2005 19:09:17 -0500
From: Andy Hamilton <[EMAIL PROTECTED]>
Subject: Re: [Asterisk-Users] Re: Voice Encryption
To: Asterisk Users Mailing List - Non-Commercial Discussion
<[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
> Does Asterisk support encryption of voice traffic? I found following wiki
> that describes IAX RSA authentication. I was able to implement the
> public/private key authentication among three Asterisk servers connected
> using IAX protocol. I am not certain if voice traffic can also be encrypted
> among the Asterisk servers. Your help is highly appreciated.
There has been a little discussion of this topic on the
asterisk-security list somewhat recently.
You may want to look at the message archive from August (
http://lists.digium.com/pipermail/asterisk-security/2005-August/thread.html
) as well as the one from September.
Hope this offers a little help; as someone mentioned, not much
documentation is out there.
>From the August thread:
>Basically it's an automatic features (CVS-HEAD only, btw) where anytime
>a pair of IAX peers have encryption set to "yes" (or, as I understand
>it, a mutually-agreed-upon and supported algorithm) then it just happens
>automagically.
(Brian Capouch)
-a
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