What role do digital certificates play in Zero Trust environments?

Digital certificates play a crucial role in establishing trust within zero trust environments by providing a method to authenticate and verify the identities of entities interacting in the network. These certificates are issued by trusted certificate authorities and contain information such as the public key of the entity, its identity information, and the digital signature of the certificate authority. In a zero trust environment, devices and users must present valid digital certificates to prove their identity before being granted access to resources or services, helping to ensure that only authorized and verified entities are allowed to communicate and access sensitive information.