This section explains the basic procedure of autmomatically authenticating or revoking a key by a trust message. It does not specify the detailed behaviour which can be found in section Use Cases. - Instead, this section should rather show the fundamental idea behind it. + Instead, this section should rather show the fundamental idea behind ATT.
Device 1 manually authenticates the key of device 2. - Device 1 automatically sends an authentication message for device 2's key to devices whose keys it has already authenticated and an authentication message for the keys of those devices to device 2. + Device 1 automatically sends an authentication message for device 2's key to devices whose keys it has already authenticated and another authentication message for the keys of those devices to device 2.
Device 2 manually authenticates the key of device 1. - Device 2 automatically sends an authentication message for device 1's key to devices whose keys it has already authenticated and an authentication message for the keys of those devices to device 1. + Device 2 automatically sends an authentication message for device 1's key to devices whose keys it has already authenticated and another authentication message for the keys of those devices to device 1.