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Opinionated engineering notes—security, scalability, correctness, and the interfaces between humans and machines. No listicles—just explanations you can reuse in prod and in interviews.
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- SecurityMay 7, 20268 min read
Hashing vs Encryption vs Encoding — The Differences Developers Must Understand
A production-minded map of encoding, hashing, and encryption—salts, passwords, JWTs, Base64 myths, interview answers, and the mistakes reviewers catch.
cryptographypasswordsJWTbackend - SecurityApril 2, 20262 min read
JWT authentication without mythology — rotations, revocation, and session ergonomics
Symmetric versus asymmetric verification, JWKS fleets, leaky storage pitfalls, and when opaque cookies outperform bearer tokens.
JWTsessionsOAuthAPI design