Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Wired Equivalent Privacy (WEP) is the RC4-based algorithm specified in the IEEE 802.11 specification. WEP keys are added to the driver through OID_802_11_ADD_WEPor OID_802_11_ADD_KEY. WEP keys are removed through OID_802_11_REMOVE_WEPor OID_802_11_REMOVE_KEY.
The 802.11 specification defines the following key types for WEP:
Per-client key
This key is used for all packets sent by the device, including unicast and multicast/broadcast packets.In the 802.11 specification, per-client keys are referred to as key-mapping keys. Per-client keys are key-mapped to the BSSID of the associated access point.
Group key
This key is used for all multicast/broadcast packets received by the device. A group key can also be used to send and receive unicast packets.In the 802.11 specification, group keys are referred to as default keys. The device must support a minimum of four group keys.
An 802.11 miniport driver must support 40-bit WEP keys but can support 104-bit keys. If the length of the key exceeds the length supported by the device, then the driver must return NDIS_STATUS_INVALID_DATA in response to a setting of OID_802_11_ADD_WEP or OID_802_11_ADD_KEY.