Abstract: Security workflows of a smart home connectivity protocol are integrated to establish device identities and ensure certification within a device commissioning service of a provider network. The service provider of the provider network can synchronize the commissioning service's implementation of the protocol, relieving smart home device vendors of this responsibility. This streamlines the software complexity for vendors during device commissioning, removing their need for external data repositories or distributed networks. Some implementations feature a managed private certificate authority service in the provider network, issuing private certificates for validated device identification. This reduces cost and complexity for vendors, enabling them to focus on top-tier smart home solutions while relying on a secure, scalable provider network service for device commissioning.