Wireless Key and Encyption

[Reinhard Sy]

Hello,

I have search the archive bt found nothing relevant to my problem.

I have a Wireless Accesspoint (Netgear WG302 and a PCMCIA Netgear
WAG511).
Then downloaded, compiled and installed 
madwifi-cvs-snapshot-2004-11-30.tar.gz:
and thats it. fine in an DELL Latitude C800.


At  the moment all works fine but. But I have trouble when I set the
Encyption or better the key.

In my Accesspoint I have used: Network Authentication to 'OpenSystem'
and the DataEncryption to 'NONE' 

This works but is not what I want. If I set the Dataencryption to for
e.g 64Bit MEP , How I have to set the the key in the configuration file:
keys-ath0.

At the moment I have : KEY=
and it works for DataEncryption = 'NONE' How I can create the key or see
the Key that is generated for the given Passphrase so I can put it into 
my keys-ath0 file ?

Here for completeness my ifcfg-ath0 :

# Atheros Communications, Inc. AR5212 802.11abg NIC
DEVICE=ath0
ONBOOT=yes
BOOTPROTO=dhcp
HWADDR=00:09:5B:A1:0C:53
ESSID=HACKER
NETMASK=255.255.255.0
DHCP_HOSTNAME=192.168.44.50
IPADDR=
DOMAIN=
USERCTL=no
PEERDNS=yes
GATEWAY=
TYPE=Wireless
IPV6INIT=no
CHANNEL=1
MODE=Managed 
RATE=Auto

and my keys-ath0:
$ cat /etc/sysconfig/network-scripts/keys-ath0
KEY=


I have the following options for  Network Authentication: 
Open System
Shared Key
Legacy 802.1X
WPA with Radius
WPA-PSK

Which one I should use ? 

And for Data Encryption I can use:
64 bits WEP
128 bits WEP
152 bits WEP

What is the right value to use ?

Thanks for any information how to active the data encryption. 

Reinhard