Kerberos

Kerberos is a network authentication protocol designed to securely verify user identities within computer systems. It uses a system of tickets to allow users to prove their identity without sending passwords over the network, reducing the risk of interception. When a user logs in, Kerberos grants a ticket that can be used to access various services without needing to re-enter credentials, enabling a seamless and secure experience. It operates on the principles of mutual authentication, ensuring that both users and services can trust each other, thereby enhancing overall security in a networked environment.