For WEP, usually only key is needed—however, up to 4 different WEP keys can be
dened for your station. One of them needs to be set as the default key and is used for
encryption. The others are used for decryption. Per default, a key length of 128-bit is
used, but you can also choose to set the length to 64-bit.
For higher security, WPA-EAP uses a RADIUS server to authenticate users. For authen-
tication at the server, three different methods are available: TLS, TTLS and PEAP. The
credentials and certicates you need for WPA-EAP depend on the authentication method
used for the RADIUS server. Ask your system administrator to provide the needed in-
formation and credentials. YaST searches for any certicate under /etc/cert.
Therefore, save the certicates given to you to this location and restrict access to these
les to 0600 (owner read and write).
1
To enter the key for WEP - Open or WEP - Shared Key:
1a
Set the Key Input Type either to Passphrase, ASCII or Hexadecimal.
1b
Enter the respective Encryption Key (usually only one key is used):
If you have selected Passphrase, enter a word or a character string from which
a key is generated according to the specied key length (per default, 128-bit)
.
ASCII requests an input of 5 characters for a 64-bit key and 13 characters for
a 128-bit key.
For Hexadecimal, enter 10 characters for a 64-bit key or 26 characters for a
128-bit key in hexadecimal notation.
1c
To adjust the key length to a lower bit rate (which might be necessary for
older hardware), click WEP Keys and set the Key Length to 64 bit. The WEP
Keys dialog also shows the WEP keys that have been entered so far. Unless
another key is explicitly set as default, YaST always uses the rst key as de-
fault key.
1d
To enter more keys for WEP or to modify one of the keys, select the respective
entry and click Edit. Select the Key Input Type and enter the key.
1e
Conrm your changes with OK.
Wireless LAN 369
