What are X.509 certificates and how do they enable trust?
PKI architecture used to keep networks of IoT devices safe from attack, the role of digitally signed X.509 certificates is to enable trusted exchanges. This is achieved by leveraging asymmetric cryptography, where a user has both a public and private key pair tied to their identity. This allows anyone else to decrypt data to send to the user using the public, which they can then decrypt with their private key.