Search Search for: Business ApplicationsAll Forums

wep key change length

 smudge11
Junior Member with 1 posts.

Join Date: Jun 2007
Experience: Beginner
11-Jun-2007, 02:18 PM #1
wep key change length
I'm fairly new to computers and need to change the length of the wep key code in vista. It wants 5 or 13 character code my modem wants a 10 character code (no option available here). Is there a way to change the wep code length in vista? I really don't want to go unsecured wireless.

Thanks for the help.

LoRetta
Member with 2,958 posts.

Join Date: Apr 2004
Location: Central NJ
Experience: Seasoned Professional
11-Jun-2007, 02:23 PM #2
If you can go with WPA or WPA2, that would be better than WEP.
 Flint87
Junior Member with 1 posts.

Join Date: Jul 2007
Experience: Mr Spock
11-Jul-2007, 05:00 PM #3
ASCII vs HEX
There are two numbering systems here (as well as two versions of WEP).

WEP uses either 64 bits or 128 bits for the key. The first 24 bits of the key are the initialization vector (IV). Subtract out the 24 bits of the IV to get the entered key.

64 – 24 – 40 bits; 40 bits / 8 bits per character = 5 ASCII characters
or
128 – 24 – 104 bits; 104 bits / 8 bits per character = 13 ASCII characters

With me so far?

The math for the hexadecimal numbering system is based on 4 bits (0 to F; 0 = 0000, F = 1111)

64 – 24 = 40 bits; 40 bits / 4 bits = 10 hex digits
or
128 – 24 = 104 bits; 104 bits / 4 bits = 26 hex digits

So you can enter 5 ASCII characters or 10 hex characters to yield the same key for 64-bit WEP. Hex numbers are typically preceded by a 0x.

I hope this helps.
 techguy.org/583223
As Seen On

WELCOME TO TECH SUPPORT GUY!

If you're not already familiar with forums, watch our Welcome Guide to get started.

Are you having the same problem? We have volunteers ready to answer your question, but first you'll have to join for free. Need help getting started? Check out our Welcome Guide.

Search Tech Support Guy

Find the solution to your computer problem!

 Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)