Re: Wireless security

From: Brian Gladman (fake_at_nowhere.org)
Date: 05/29/03 

Date: Thu, 29 May 2003 19:55:42 +0100

"Andrew Swallow" <am.swallow@eatspam.btinternet.com> wrote in message
news:bb5k9g$q3v$1@titan.btinternet.com...
> "Paul Crowley" <paul@JUNKCATCHER.ciphergoth.org> wrote in message
> news:87fzmx4nvk.fsf@saltationism.subnet.hedonism.cluefactory.org.uk...
> > This isn't strictly speaking a sci.crypt question but I hope you'll
> > forgive my asking.
> >
> > What do you need to look for on a wireless network product in order to
> > know that it is capable of securely encrypting and authenticating what
> > it carries?
> >
> > I know that things like AirSnort and WEPCrack use the Fluhrer, Mantin,
> > Shamir attack to break WEP as originally fielded. I also understand
> > that a new AES based protocol is in the works. There seems to be
> > wireless equipment on the market branded "54g" which implements the
> > forthcoming 802.11g standard.
> >
>
> Any links to the proposed stardard?
>
> > Will these new cards support the new, AES based protocol? If so, is
> > the new protocol secure? If not, is there any practical way of
> > getting link layer encryption for a wireless LAN today, or do I have
> > to rely on encryption in the higher levels (eg IPSec and ssh)?

An input to the proposed standard is here:

http://www.hifn.com/support/ccm.htm

I have provided code for CCM mode for some months now and judging by my
emails and downloads I would guess that there is a lot of implementation
work going on right now.

    Brian Gladman

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