Re: Encrypted voice protocol?

> Date: Thu, 4 Mar 93 10:39:20 -0500 
> From: Theodore Ts'o <tytso@athena.mit.edu> 
> Subject: Encrypted voice protocol? 
> 
> 
> So for roughly $200 US, and a little software, it should be possible to 
> put together something that would do encrypted voice communications 
> over the network.  Is there any interest in developing some sort of 
> standard protocol and software to do encrypted, compressed voice 
> communications over TCP/IP?  
> 

I don't know how many of you are at sites on the MBONE, or multicast 
backbone. There are already a few pieces of code out there for 
experimentation with transmission of audio and video information, in a 
variety of forms/encoding, and probably the most widely used tool, "vat - the 
Visual Audio Tool", already has provisions for carrying on encrypted audio 
teleconferences via IP. In fact, it's as simple as typing a key into a field, 
and the tool will DES en/decrypt the conference. 

--Strat, budding multicast weenie

Date: Fri,  5 Mar 1993 03:51:59 -0500
   From: Bob Stratton <strat@intercon.com>

   I don't know how many of you are at sites on the MBONE, or multicast 
   backbone. There are already a few pieces of code out there for 
   experimentation with transmission of audio and video information, in a 
   variety of forms/encoding, and probably the most widely used tool,
   "vat - the  Visual Audio Tool", already has provisions for carrying
   on encrypted audio teleconferences via IP.  In fact, it's as simple
   as typing a key into a field, and the tool will DES en/decrypt the
   conference.  

That's a good start!  Now all we need something which is a bit more
general in its selection of the asymmetric encryption algorithm, and
something which does public key for authentication and protection of the
assymetric session key.

							- Ted