Re: crypto delay (Notes from Non-meeting)

From: James M. Polk ^lt;jmpolk@cisco.com>
Date: Thu Apr 04 2002 - 16:35:53 EST

At 10:24 AM 4/4/2002 -0800, Andrew Daviel wrote:
<snip>
>Moores Law will surely bring us mobile devices with enough power to
>do whatever crypto is necessary, maybe even by the time the protocol is
>ready. There is a limit to offering enhanced service on obsolete devices
>- if the device is too old to have location capability, then you can't di
>it at all. (I believe that as device speed rises, so does the
>required key length for crypto to be considered secure,

I disagree here. Regarding a non-stationary or static piece of information
(national secret type) , a 128 bit key length should be sufficient if used by a
good encryption algorithm. I submit if that key length isn't good enough, a new
algorithm should be chosen, not a new key length.

*************************************
"People generally demand more respect for their own rights than they are
willing to allow for others"

James M. Polk
Consulting Engineer
Office of the CTO

Cisco Systems
2200 East President George Bush Turnpike
Richardson, TX 75082 USA
w) 972.813.5208
f) 972.813.5280
www.cisco.com
Received on Thu Apr 4 16:37:30 2002

This archive was generated by hypermail 2.1.8 : Thu Jan 22 2004 - 12:32:23 EST