👉 Certificate computing is a subset of public key infrastructure (PKI) that focuses on the creation, distribution, and management of digital certificates. These certificates serve as electronic credentials that verify the identity of entities—such as individuals, organizations, or devices—on a digital network. The process involves generating a public-private key pair for the entity, issuing a digital certificate by a Certificate Authority (CA) that binds the public key to the entity's identity, and distributing the certificate to the relevant parties. Certificate authorities play a crucial role in ensuring trust by validating the identity of entities before issuing certificates. Digital certificates are used to secure communications, authenticate users and devices, and enable secure transactions over the internet, underpinning technologies like HTTPS, SSL/TLS, and code signing. This system ensures data integrity, confidentiality, and authenticity in digital communications.