AWS IoT
Developer Guide

Attach a Certificate to a Thing

A device must have a certificate, private key and root CA certificate to authenticate with AWS IoT. We recommend that you also attach the device certificate to the thing that represents your device in AWS IoT. This allows you to create AWS IoT policies that grant permissions based on certificates attached to your things. For more information. see Thing Policy Variables

To attach a certificate to the thing representing your device in the registry:

  1. In the box for the certificate you created, choose ... to open a drop-down menu, and then choose Attach thing.

  2. In the Attach things to certificate(s) dialog box, select the check box next to the thing you registered, and then choose Attach.

  3. To verify the thing is attached, select the box representing the certificate.

  4. On the Details page for the certificate, in the left navigation pane, choose Things.

  5. To verify the policy is attached, on the Details page for the certificate, in the left navigation pane, choose Policies.