Implementing Secure Authentication with OpenID Connect

Modern applications require secure, scalable, and standardized ways to verify user identities. OpenID Connect (OIDC) builds on top of OAuth 2.0 to provide a robust identity layer for web, mobile, and single-page applications. This text-based course guides you through the core concepts of identity federation, token validation, and secure authentication flows. You will transition from understanding basic security definitions to confidently designing and analyzing secure identity architectures for modern software. What you'll learn: - Understand the fundamental differences between OAuth 2.0 authorization and OpenID Connect authentication - Configure identity providers and register client applications securely - Analyze and validate ID tokens, access tokens, and refresh tokens - Implement modern secure flows, including Authorization Code Flow with PKCE for single-page and mobile apps - Handle user sessions, single sign-on (SSO) scenarios, and secure logout procedures - Apply security best practices to protect client applications from common identity-related vulnerabilities You will start with essential security terminology, identity concepts, and protocol specifications before moving step-by-step through token structures, endpoint communication, and real-world integration scenarios. This course is designed for beginner developers, system architects, and security enthusiasts who want to build a solid foundation in identity management without needing prior cryptography experience. Start reading today to master the standards that power secure modern authentication.