Authentication and Authorization- Terminology and Mechanisms

Authentication and authorization are cornerstones of modern security, ensuring that only the right users have access to the right resources. This section provides a comprehensive overview of essential terminology and mechanisms, from basic concepts to advanced practices, empowering developers, engineers, and security professionals to implement robust access controls in their systems.

Understanding Authentication and Authorization

• Authentication: The process of verifying the identity of a user, device, or system. Authentication answers the question, “Who are you?”
• Authorization: The process of granting or denying access to resources based on verified identity and permissions. Authorization answers the question, “What are you allowed to do?”

While related, authentication and authorization are distinct processes that work together to secure systems.