On Tue, Oct 28, 2008 at 11:56 AM, Keith Lofstrom <[EMAIL PROTECTED]> wrote:
>
>
> I am running an PTP open access point.  The businesses and homes that
> I visit that are using encryption are all using WEP.  I've never
> encountered WPA, so I don't know if my hardware/OS (atheros/2.6.18)
> supports WPA *correctly*, even if there is a menu item for it.
>
> Have some of you used WPA?  Are there many sites that use it, or
> other allegedly more-secure protocols like that?  I'm wondering what
> people's experiences with it are, and whether I should prepare for
> encounters with it.

I've used WPA, with varying success. There are a number of WPA
flavors, and unfortunately, different Operating Systems/Client
Software/Firmwares name them different things and they seem to
interact with varying success. Of course, I could say the same
regarding WEP.

WPA Personal or WPA-PSK uses a pre-shared key, ala WEP, though with
more restrictions and a not trivial key generation method. As I
understand it, WPA uses TKIP encryption and WPA2 uses AES encryption.
Some systems allow you to choose WPA/WPA2 modes, which obviate the
need to match versions.

WPA Enterprise relies on a radius database while providing the same
encryption methods. Radius presents the possibility of doing some cool
things in terms of managing different classes of users, and provides
the only real ability to do any form of security, since any system
that uses a shared key is only as secure as the lips of every person
you give that key to.

As with WEP, all forms of WPA introduce added complexity and create
barriers to providing open access to your wireless, if that's your
goal. I would also consider them all to be inferior security options
when compared to end-to-end encryption of data you want to keep
secret. Wireless security is a means of creating some access denial,
and not the best way to secure your bits from prying eyes.

Michael

-- 
Michael Weinberg
President
Personal Telco Project, Inc.
A 501(c)(3) Non-Profit

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