Hi, Does asterisk support any kind of voice encryption? Matt -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20031224/f06c2d25/attachment.htm
On Wed, 2003-12-24 at 19:11, Mahoney, Matt wrote:> Hi, > > > Does asterisk support any kind of voice encryption?Not right now. As I understand it, it is a problem with the fact that each packet would have to be able to be decrypted even if packets in the stream are lost. In the long run it is going to be a question of how secure do you need it to be. Afaik, the good encryption methods are stream based, and the loss of packets would kill the decryption. Add to that the problem of finding some encryption method that can deal with small packets without adding a lot of overhead. Each voice packet in IAX with GSM compression isn't very long. The voice data is only 33 bytes. -- Steven Critchfield <critch@basesys.com>
>>>>> "Steve" == Steve Underwood <steveu@coppice.org> writes:Steve> SRTP has been through the process of trying to deal with this Steve> in the most effective manner, but doesn't seem to be widely Steve> used right now. Free implementations exists - see Steve> srtp.sourceforge.net. I guess it should be adaptable to IAX. It should be adaptable, and is a good starting point. In the short term, anyone who needs encryption between n * boxen, and controls all of them, should give ipsec a test. They've also had to deal with encrypting a non-reliable packet-stream, and have been working on it for several years now.... (The major dists should all support it in their kernels; if you compile your own it is not difficult to add to 2.4 kernels -- 2.6.0 already has it.) -JimC
2003-12-25 09:01 markster * Makefile (1.66), aescrypt.c (1.1), aeskey.c (1.1), aesopt.h (1.1), aestab.c (1.1), include/asterisk/aes.h (1.1): Add AES support Just what I see :P On Fri, 26 Dec 2003, Michael C. Cambria wrote:> > > Brian West wrote: > > I understand AES can do this. > > AES in counter mode can. > > MikeC > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
Are there any hardware SIP phones that have IPsec or other encryption built in?
Matt
________________________________
From: asterisk-users-admin@lists.digium.com on behalf of Brian West
Sent: Fri 12/26/2003 11:13 AM
To: asterisk-users@lists.digium.com
Subject: Re: [Asterisk-Users] Encryption
2003-12-25 09:01 markster
* Makefile (1.66), aescrypt.c (1.1), aeskey.c (1.1), aesopt.h
(1.1), aestab.c (1.1), include/asterisk/aes.h (1.1): Add AES
support
Just what I see :P
On Fri, 26 Dec 2003, Michael C. Cambria wrote:
>
>
> Brian West wrote:
> > I understand AES can do this.
>
> AES in counter mode can.
>
> MikeC
>
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
>
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Jonathan Tew wrote:> What if his application is a stub that communicates to another process > via TCP/IP. That other process can be closed source without any problem. >Then that stub has to be released GPL or they have to pay digium for non-gpl. There is no way around it. Jeremy McNamara