2.2.1.7 Authenticated Commands
This protocol supports sending cryptographically signed commands from the receiver to the transmitter.

Figure 3: Sending Cryptographically Signed Commands from the Receiver to the Transmitter
The following table describes elements of the previous diagram.
|
Value |
Description |
|---|---|
|
Session ID |
128 bit session identifier generated in registration. |
|
Counter |
Current value of the counter for sending authenticated messages. This value starts at zero (0). |
|
Command Data |
The data structure holding the data for the command. See below for details. |
|
OMAC |
OMAC1 [OMAC] of the message using the authenticated command key. |
|
Result |
Error code for the operation. 0 means success 0x071 (113) means Bad request 0x072 (114) means Counter Mismatch 0x073 (115) means Invalid Signature |