Custom Certificates#

CPMS allows you to customize the device identity certificate chain. The certificates use the X.509 format and must conform to RFC-3280. For an example of a Silicon Labs device certificate, refer to Section 3.1 of AN1268. Currently, CPMS supports customization of four fields in the device certificate:

  1. Common name: User-defined, 30-character name that will terminate with the 64-bit EUI of the device (example is "EUI:xxxxxxxxxxxxxxxx" and will terminate with " S:SE0 ID:MCU" or " S:FL0 ID:MCU" depending on if the device is a Secure Vault High device or not.)

  2. Organization: User-defined, 64-character company name

  3. Country: Must be a legitimate country code letter pair (e.g., US)

  4. Organizational Unit: User-defined field of up to 64 characters

If there are other certificate customizations you would like to implement, specify them in the Special Instructions section in the CPMS.

CPMS Custom Identity screenshotCPMS Custom Identity screenshot