Interesting People mailing list archives
Re: IP: Secnet11 an 802.11b clone with Type 1 crypto
From: David Farber <dfarber () earthlink net>
Date: Tue, 18 Jun 2002 09:22:02 -0400
-----Original Message----- From: "David P. Reed" <dpreed () reed com> Date: Tue, 18 Jun 2002 09:17:55 To: farber () cis upenn edu, ip <ip-sub-1 () majordomo pobox com> Subject: Re: IP: Secnet11 an 802.11b clone with Type 1 crypto At 04:23 AM 6/18/2002 -0400, Dave Farber wrote:
o the message address is encrypted to prevent traffic analysis (this is a big selling point vs VPN technology, tho I suspect an adversary could learn quite a bit about a wireless net using a sniffer and one or more directional antennae to count how many packets come from each direction)
Merely encrypting the link (no matter how strong the encryption and key distribution might be) is insufficient. So the idea that this is "vs VPN technology" is a flawed concept. You still need to encrypt the data on an end-to-end basis. The link encryption is primarily useful against traffic analysis and preventing interlopers from hogging capacity by requesting transmit slots, whether they use them or not. I hope the NSA is not recommending these *instead* of end-to-end security - if so the engineers involved should be fired. For archives see: http://www.interesting-people.org/archives/interesting-people/
Current thread:
- IP: Secnet11 an 802.11b clone with Type 1 crypto Dave Farber (Jun 18)
- <Possible follow-ups>
- Re: IP: Secnet11 an 802.11b clone with Type 1 crypto David Farber (Jun 18)