Usage Flow

Follow the steps below to configure the message authentication feature.

Security Setting​

1. Open the Security Window

   After installing the Message Authentication plug-in in MicroPeckerX Control Software, a “Security Window” becomes available. Open the Security Window from the menu or toolbar.

   

2. Open the Security Setting dialog

   Click the tab of the channel you want to configure. Then click the “Security Setting” button to open the Security Setting dialog.

   

Channel Settings​

Configure channel-wide message authentication settings on the Ch Setting tab.

1. Open the Ch Setting tab
   Click the Ch Setting tab in the Security Setting dialog.

   

2. Select a profile
   Choose the security profile for message authentication from the Profile dropdown.

   

3. Enable message authentication
   Select the “Use Message Authentification” checkbox to enable message authentication.

   

4. Configure FV Master/Slave
   Use the “FV Master” checkbox to set the FV role. Select it for a master, or clear it for a slave.

   

5. Configure SyncFrame
   Use “SyncFrame Setting” to configure the sync message.

   

6. Configure MAC Type
   In “MAC Type Setting,” specify the MAC bit position in the data field and how to generate the key. If you use a fixed key, enter the value here.

   

7. Configure the FV
   Use “FV Setting” to enable or disable FV. When enabled, specify the FV bit position in the data field.

   

8. Configure MAC Source: Prefix
   “MAC Source Setting” defines how the MAC input is generated.

   When Profile = Jaspar​

   If you select “Jaspar,” the elements are preconfigured to match the message ID specification. Enter only the initial values.

   

   When Profile = Custom​

   If you select “Custom,” configure the prefix bit length, elements (name, bit position, initial value, etc.), and generation method.

   

9. Configure MAC Source: Payload
   In “CAN/CAN-FD Payload,” enable or disable the payload input and specify its bit position in the data field.

   

10. Configure MAC Source: FV

    When Profile = Jaspar​

    If you select “Jaspar,” the FV elements are preconfigured. Enter the initial values only.

    

    When Profile = Custom​

    If you select “Custom,” configure the postfix bit length, elements (name, bit position, initial value, etc.), and generation method.

    

ID Settings​

Configure message authentication per CAN ID on the ID Setting tab.

1. Open the ID Setting tab
   Click the ID Setting tab in the Security Setting dialog.

   

2. Add an ID setting
   Click the button to add a message authentication setting for a CAN ID.

3. Configure Target Frame Info
   For each ID, use Target Frame Info to configure the frame details (CAN ID, transmit cycle, offset, etc.). To configure a periodic transmit frame, set Mode to “Periodic.” If the ID acts as an FV master, enter the message ID in the “ID” field.

   

4. Use Ch Setting
   Clear the “Use Ch Setting” checkbox if you do not want to use the channel-wide settings. The Security Setting fields appear so you can configure authentication for the selected ID.

   

5. Configure all IDs
   Repeat steps 2 to 4 for each CAN ID that requires message authentication.

6. Close the Security Setting dialog
   After completing all configurations, click “OK” to close the dialog.

Monitoring​

The Security Window displays communication logs for security frames.

1. Enable Security Mode
   On each channel tab in the Security Window, select “Security Mode Enabled.” Message authentication is now active.

   

2. Start monitoring
   After configuring the settings, click on the main window to begin monitoring CAN/CAN FD communication.

Security Window During Monitoring​

All transmitted and received security message logs appear in the Monitor Window and Security Window. In the Security Window, you can review the prefix and postfix for each log entry (or Message ID and FV when using the JASPAR profile).

Security Window After Monitoring​