Authentication and Authorization Fundamentals

Securing user data and controlling access to resources is one of the most critical aspects of modern software development. Without a solid grasp of how security protocols work, applications remain vulnerable to costly breaches. This text-only course guides you through the foundational principles of identity management, helping you transition from a beginner to a developer who can confidently design secure access flows. You will learn the critical differences between verifying who a user is and determining what they are allowed to do. What you'll learn: Understand the core differences between authentication and authorization; Implement industry-standard protocols including OAuth 2.0 and OpenID Connect; Manage user sessions securely using JSON Web Tokens and modern cookie strategies; Apply secure password storage practices using modern hashing algorithms; Configure role-based and attribute-based access control models; Integrate Zero Trust security concepts into your application architecture. You will start by exploring fundamental security definitions and protocols before moving into real-world scenarios, complete with written code examples and conceptual self-assessment exercises to test your knowledge. This course is designed for beginner developers, system administrators, and security enthusiasts who want to build a strong foundation in application security without any prior security experience. Start reading today to build safer, more secure applications.