Create key

Sign up for an AWS account if you have not done so. Login to the dashboard.

search service

Look for key management service in AWS search and proceed to create a key.

configure key

Configure key by selecting Asymmetric + Sign and verify option. Key specification to choose is ECC_SECG_P256K1. Thereafter, assign respective IAM user(s) to this key.

Once done, take note of the generated Key ID, you will need this later on.