The repository contains code that teaches the essentials of building secure web applications using Python. It covers key security concepts, including:
- Defense in Depth: Strategies to protect applications at multiple levels.
- Cryptographic Foundations: Techniques for hashing, keyed hashing, symmetric and asymmetric encryption, and implementing Transport Layer Security (TLS).
- Authentication and Authorization: Managing HTTP sessions, user authentication, password management, authorization, and OAuth 2.0.
- Attack Resistance: Best practices for working with the operating system, input validation, and protection against cross-site scripting attacks, content security policies, cross-site request forgery, cross-origin resource sharing, and clickjacking.
The code features practical examples and utilizes important libraries within the Python ecosystem, making it a valuable resource for developers looking to enhance the security of their applications.