Introduction to Security Protocols in Distributed Systems

In modern software development, applications rarely run in isolation; they rely on distributed networks where secure communication is critical to prevent data breaches and unauthorized access. This text-based course guides you through the fundamental principles of securing distributed systems, helping you transition from a beginner to confidently understanding how authentication, authorization, and encryption protocols work together. What you'll learn: - Understand foundational concepts of cryptography, symmetric/asymmetric encryption, and digital signatures - Analyze how TLS and SSL secure data in transit across distributed nodes - Implement secure authentication and authorization patterns using OAuth 2.0 and OpenID Connect - Explore modern Zero-Trust security models to verify every request, regardless of origin - Apply token-based authentication and secure API gateway practices to microservices - Practice identifying common security vulnerabilities in distributed communication through written scenarios You will start with essential security definitions and cryptographic basics before moving on to transport-level security, identity management, and modern zero-trust architectures. This course is designed for aspiring software engineers, system architects, and tech enthusiasts with no prior security experience. Start reading today to build a secure foundation for your distributed applications.