We've had several questions about which wireless encryption schemes Sirocco supports. For the record, here they are:
-WEP
-WPA (AES and/or TKIP)
-WPA2 (AES and/or TKIP)
Note that the supported WPA and WPA2 modes are usually called "Personal" mode. The "Enterprise" mode that may appear on your router is not supported, but this mode is generally used for larger corporate networks.