[TriLUG] easy encrypted VoIP?

[jonc at nc.rr.com]

Asterisk does have some encryption modules - so you can encrypt in both
directions if you are using a softphone. I don't know of any Hardphones
on the market that do VoIP encryption.

It would be POC to add an encryption step to either the transcoding or
the SIP channel processing. The only interesting part of the problem
would be setting up an authenticated call process to exchange keys.

Jon

----- Original Message -----
From: Cristóbal Palmer <cristobalpalmer at gmail.com>
Date: Tuesday, June 5, 2007 11:41 am
Subject: Re: [TriLUG] easy encrypted VoIP?
To: Triangle Linux Users Group discussion list <trilug at trilug.org>

> On 6/5/07, Magnus <magnus at trilug.org> wrote:
> > Reginald Reed wrote:
> > > Sure you can do this.  Setup encrypted tunnels/vpn between end 
> points,> > run asterisk on one end and connect clear inside the 
> respective homes
> > > to the tunnel end-points.  If you have enough upstream 
> bandwidth, you
> > > could do this for several friends and family at once, even using
> > > hardware devices for VPN (cheapest linksys router with OpenWRT for
> > > example).
> >
> > This is incredibly impractical for making phone calls.  The 
> encryption> should be built into the VoIP client, not hidden in the 
> network layer
> > between two fixed points.
> 
> Actually I've done it. It works fairly well. In my case both endpoints
> have TWC cable modems. The setup started barfing when the roommate
> started uploading full-length movies to teh intarweb, but he found
> himself promptly without a cable going to his room, so it all worked
> out. :D
> 
> You're right that it's impractical if you plan on calling most
> everybody you know with this setup, but it's a good short-run fix if
> you want to have relatively secure conversations with friends or
> family.
> 
> Cheers,
> -- 
> Cristóbal M. Palmer
> administrator!!! please hope me!
> -- 
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