An encrypted form of the key used in encrypting the
packets passed between the RADIUS server and the client.
This key must match the one configured on the server.
This object may only be read or written when
hpSwitchAuthenticationEncryptCredentialsMethod is set to a
value other than none(0). At most one of
hpSwitchRadiusAuthKey and hpSwitchRadiusAuthKeyEncrypted
may be set in any transaction. This object should only be
written with an encrypted key previously read from a
compatible HP Networking device.