Cryptography

Git proved that content-addressing file contents gives you integrity, history, efficient equality, and distributed collaboration for free. The same architecture applied to code relationships gives you something new: versioned intelligence that you can diff, cache, prove, and trust over time.

JSON has no built-in security. The ecosystem response: JWT for authentication, JWS for signing, JWE for encryption. Learn how these work, common attacks (algorithm confusion, injection, timing), and how to secure JSON-based systems.