Abstract: Operations of a certificate bundle validation service may include receiving a first certificate bundle that includes a first set of one or more digital certificates, and a digital signature, associated with the first certificate bundle; determining, using a public key of an asymmetric key pair associated with a second set of one or more digital certificates, that the digital signature is generated using a private key of the asymmetric key pair; and responsive to determining that the digital signature is generated using the private key, storing the first certificate bundle in a certificate repository as a trusted certificate bundle.

Abstract: Techniques for provisioning a cloud resource instance associated with a virtual cloud network may include detecting a certificate bundle-retrieval trigger during a provisioning process for the cloud resource instance, and responsive to detecting the certificate bundle-retrieval trigger, sending, to an agent executing on a network interface linked to the cloud resource instance, a request for a certificate bundle for the cloud resource instance. Techniques may further include receiving the certificate bundle from the network interface. The certificate bundle may include a set of certificate authority (CA) certificates. Techniques may further include installing the certificate bundle in a storage medium associated with the cloud resource instance. Installing the certificate bundle may represent an operation of the provisioning process.

Abstract: Techniques for updating certificate bundles may include receiving, at an entity associated with a virtual cloud network, a certificate bundle that includes an updated set of certificate authority (CA) certificates. The techniques may include applying a validation process to an entity certificate based on the certificate bundle, with the entity certificate having been issued to the entity prior to the entity receiving the certificate bundle. The validation process may include validating, by the entity, a certificate chain that includes the entity certificate and a CA certificate included in the updated set of CA certificates. The techniques may include, responsive to validating the certificate chain, installing the certificate bundle in a storage medium associated with the entity, and utilizing, by the entity, the certificate bundle to authenticate at least one additional entity associated with the virtual cloud network.