Authentication Server (AS) is a critical component of an authentication framework, responsible for verifying the identity of users or devices attempting to access a network or system.
Key Functions:
- Identity Verification: Confirms the credentials (e.g., username, password, certificates) of users or devices.
- Ticket Issuance: In systems like Kerberos, the AS generates a Ticket Granting Ticket (TGT) after successful authentication.
- Secure Communication: Ensures that authentication exchanges are encrypted and secure from interception.
Use Case:
An AS is commonly used in enterprise environments to authenticate users before granting access to resources like applications, databases, or networks.
In summary, the Authentication Server is a trusted gatekeeper that validates credentials, enabling secure access to systems and services.
