aws iot core device certificate

Question

When using aws iot core, do I need to use a different certificate for each device?
If there are many devices, isn't it difficult and inconvenient to use each certificate for each device?
Is there any good way?
Thank you.

Answer

Hi. Using a unique certificate is a best practice to limit blast radius to a single device if a device is compromised.

- https://docs.aws.amazon.com/whitepapers/latest/securing-iot-with-aws/provision-iot-devices-and-systems-with-unique-identities-and-credentials.html
- https://docs.aws.amazon.com/wellarchitected/latest/iot-lens/identity-and-access-management-iam.html

AWS has numerous methods of device provisioning that can help you provision devices at scale:

- https://d1.awsstatic.com/whitepapers/device-manufacturing-provisioning.pdf
- https://docs.aws.amazon.com/iot/latest/developerguide/iot-provision.html

Please review that material and we'd be more than happy to answer subsequent questions.

aws iot core device certificate

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