1. Computer problem? Tech Support Guy is completely free -- paid for by advertisers and donations. Click here to join today! If you're new to Tech Support Guy, we highly recommend that you visit our Guide for New Members.

wep key change length

Discussion in 'Business Applications' started by smudge11, Jun 11, 2007.

Thread Status:
Not open for further replies.
Advertisement
  1. smudge11

    smudge11 Thread Starter

    Joined:
    Jun 6, 2007
    Messages:
    1
    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
     
  2. gurutech

    gurutech

    Joined:
    Apr 23, 2004
    Messages:
    2,959
    If you can go with WPA or WPA2, that would be better than WEP.
     
  3. Flint87

    Flint87

    Joined:
    Jul 11, 2007
    Messages:
    1
    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.
     
As Seen On
As Seen On...

Welcome to Tech Support Guy!

Are you looking for the solution to your computer problem? Join our site today to ask your question. This site is completely free -- paid for by advertisers and donations.

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

Join over 733,556 other people just like you!

Loading...
Thread Status:
Not open for further replies.

Short URL to this thread: https://techguy.org/583223