[52920] in Cypherpunks
Re: Edited Edupage, 24 March 1996
daemon@ATHENA.MIT.EDU (jamesd@echeque.com)
Fri Mar 29 11:59:23 1996
From: jamesd@echeque.com
Date: Fri, 29 Mar 1996 08:25:50 -0800
To: jsw@netscape.com, perry@piermont.com
Cc: cypherpunks@toad.com
Perry E. Metzger wrote:
> 2) I strongly hope that Netscape tries to move the product towards
> standards based mechanisms like the IETF's RTP protocol, which are
> in widespread use,
Unfortunately RTP is not a crypto protocol, and does not have a
standardized encrypted form.
Therefore any encrypted protocol is necessarily proprietary and
non standard, unless Phill Zimmerman has published a standard.
If Netscape creates a standard for encrypting RTP, and publishes it,
that will be a move towards a standard, not a move away from a standard.
One mechanism for encrypting RTP would be to construct a shared secret
key by DH exchange, or Rabin if one wished to dodge patents, construct
a cryptographically strong pseudo random data stream from the key, using
Ron's code, and for each RTP packet, encrypt using a block from that
data stream as the packet key.
---------------------------------------------------------------------
|
We have the right to defend ourselves | http://www.jim.com/jamesd/
and our property, because of the kind |
of animals that we are. True law | James A. Donald
derives from this right, not from the |
arbitrary power of the state. | jamesd@echeque.com
