Apple Event: May 7th at 7 am PT

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

40 bit WEP and Windows XP

I'm still using the original AirPort, purchased February 2000, every day. What a great innovation that was...! For the first time, I hooked up a Windows (XP) computer, my neighbor's new Dell notebook. I got it working pretty quickly, although there was a problem with the WEP encryption: my AirPort offers 40 bit WEP encryption, which was unavailable on Windows XP, where you can choose either 128 or 64 bit. A research on the Internet revealed that the 64 bit encryption is also called 40-bit, so we tried that (How comes 64 can also be called 40?? Why not call it 77-bit instead???). Then there was an issue with the password: In Windows XP, it stated that the password had to be 5 characters long, whereas, in the past, I always used a much longer password. But after changing the password, the Dell was hooked up and could access the Internet. Can somebody explain this password issue? If the max. length allowed is really 5 chars, why did my computer never complain? Does the password get truncated to 5 chars without notifying me?

Thanks for answers

Powerbook G4 15" (&iBook clamshell tangerine 300MHz), Mac OS X (10.4.6)

Posted on Jun 27, 2006 10:49 PM

Reply
4 replies

Jun 29, 2006 2:57 AM in response to Ranman

Here's the link to the thread:
http://discussions.apple.com/thread.jspa?threadID=534141&tstart=30

and in case this link doesn't work, I copied the answer:

"One of the problems with WEP is that the actual standard relies on a 10 character HEX key for 40bit WEP and a 26 character HEX key for 128bit WEP.

In order to make things easier for people, vendors use certain algorithms to convert simple alphanumeric passwords (or passphrases) into HEX keys, thus enabling people to use simple memorable WEP password rather than lengthy HEX keys.

The problem is that different vendors use different algorithms to generate the HEX key and therefore a ASCII password on an AEBS will be hashed differently on a Netgear client and vice versa.

One thing is a 13 character 128 bit WEP password will be hashed by all vendors in the same way (if you use 40bit WEP then a 5 character password is required).

Though sometimes not even that works and the HEX key must be used regardless.

Accessing a Airport Network with a Windows XP PC or laptop (with XP SP2)
http://www.ifelix.co.uk/tech/1011.html

Accessing a Airport Network with a Windows XP PC or laptop (with XP SP1)
http://www.ifelix.co.uk/tech/1010.html

iFelix "

That did it for me, I hope your question's answered as well.

Kurt

40 bit WEP and Windows XP

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.