[7335] in cryptography@c2.net mail archive
RE: Help add strong crypto to AirPorts
daemon@ATHENA.MIT.EDU (Richard Johnson)
Fri Jun 16 14:45:58 2000
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In-Reply-To: <NDBBIFGOKODBCKDGJDKLKEDJECAA.shamrock@cypherpunks.to>
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Date: Fri, 16 Jun 2000 11:47:27 -0600
To: Lucky Green <shamrock@cypherpunks.to>, Lenny Foner <foner@media.mit.edu>
From: "Richard Johnson" <rdump@river.com>
Cc: "Cypherpunks@Openpgp. Net" <cypherpunks@openpgp.net>,
"Cryptography@C2. Net" <cryptography@c2.net>
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At 06:36 -0600 on 6/14/00, Lucky Green wrote:
> Please do let me know how to enter a 128 bit WEP key into the MacOS driver.
> Or any key for that matter, since AFAICT the MacOS drivers don't let you
> enter raw WEP keys at all, only a passphrase which then is hashed down to a
> 64 bit key using an Apple proprietary algorithm.
For a Java Airport configuration tool with source, see:
http://edge.mcs.drexel.edu/GICL/people/sevy/airport/
This may allow us to at least set 128bit keys in hex.
The memory locations used within the Airport for the 40 bit keys are
suggestive of multiple key support, with perhaps larger keys as well. The
size flag for 40bit keys is 05. Interpreting that as a byte count suggests
the size flag for 128bit keys will be 16. Stuffing that count and a key that
big into the image may be worth a try.
Of course, that doesn't solve entering the key into the Mac OS drivers for
Macs with Aiport cards. Has anyone reverse-engineered that unnecessarily
proprietary hash yet?
> In addition, I would love
> to hear about a source for 128 bit AirPort cards, since the iBook and iMac
> won't accept standard Lucent WaveLAN PCMCIA cards.
I don't know anything about 128bit AirPort cards. Like you, I'd love to see
some.
> Thanks,
> --Lucky
Richard
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