Free ebookPractical Cryptography for Developers: Build, Break, and Secure Real Systems

Course Description

Practical Cryptography for Developers Build Break and Secure Real Systems is a hands on ebook course for software engineers who need cryptography that works in production. In the Information Technology and Cyber Security space, this course focuses on the decisions developers actually make when building authentication, data protection, and secure communication into web, mobile, and backend systems.

You will learn how to think like both a defender and an attacker by grounding every design choice in threat models, entropy, and realistic attacker capabilities. Instead of treating crypto as abstract math, you will apply safe symmetric encryption patterns, modern hashing approaches, and reliable password storage practices that reduce credential abuse risk. You will also gain practical clarity on public key cryptography choices, key management, rotation, and storage so secrets are handled correctly across environments and teams.

Real systems fail in the messy paths, not the happy path. This ebook course shows how to build secure communication patterns that remain robust under retries, timeouts, replay attempts, partial compromise, and incident response constraints. You will strengthen token, session, and cookie security in real applications, and explore end to end encryption design patterns and tradeoffs so you can decide what to encrypt, where keys live, and how to manage recovery without undermining confidentiality.

To make your security work repeatable, you will use secure architecture checklists for web, mobile, and backend development and study common failure cases that explain how cryptography breaks in production. Implementation labs emphasize library first patterns and secure defaults so you can avoid dangerous DIY crypto and ship safer features faster. The capstone ties it all together by designing secure authentication and data protection for a small SaaS, reflecting the constraints of real product development.

Start the course today and build the cryptography skills you need to ship secure systems with confidence.