Archived from groups: (
More info?)
On Thu, 25 Aug 2005 20:41:59 -0400, "E.F." <pm771@netscape.net> wrote:
><<< For a home system, I suggest you use WPA-PSK (pre-shared key) ... >>>
>
>What is the relationship between TKIP (that my hardware/drivers supposedly
>have) and WPA-PSK?
>
>I read
http://en.wikipedia.org/wiki/Wi-Fi_Protected_Access but still not
>sure.
Well, I don't know if I can simplify the various protocols but I'll
try.
802.11 is nothing more than encapsulated ethernet (802.3) packets.
Under the 802.11 stuff is just plain old ethernet.
Everything is wireless is bridging with no IP addresses or routing
involved.
WPA is a collection of protocols that defines how encryption takes
place over 802.11 wireless.
WPA requires 3 underlying protocols:
1. A method of encryption which is usually RC4 cypher but can also be
AES which is used in WPA2.
2. A method of secure encryption key exchange which is TKIP.
3. A method of authentication which is EAP and PEAP plus assorted
mutations. Normally, these are based on 802.1x authentication which
requires a RADIUS server somewhere.
For home use, the RADIUS server for authentication is impractical so
WPA-PSK (pre-shared key) was invented. The pre-shared key is used for
both encryption and authentication.
--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831.336.2558 voice
http://www.LearnByDestroying.com
#
http://802.11junk.com
# jeffl@comix.santa-cruz.ca.us
# jeffl@cruzio.com AE6KS