The passphrase from the default login keychain for the given CWWirelessProfile.
This method may prompt the user to allow access to their default login keychain.
Original signature is '@property( readwrite, copy) NSString*passphrase ;'
Available in Mac OS X v10.6 and later.


- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later)