HS256 vs RS256 - which JWT signing algorithm should you use?
HS256 shares one secret between signer and verifier; RS256 splits them into a private and public key. Here is what that means for key distribution, token size, speed, and the attacks each one invites.
JWT security best practices - the checklist that prevents real breaches
Pin the algorithm, validate every claim, keep lifetimes short, store tokens where scripts cannot reach them, and never put secrets in the payload. A practical checklist drawn from how JWT deployments actually get broken.
What is a JWT? JSON Web Tokens explained
A JSON Web Token is three base64url strings joined by dots. Learn what each part holds, how the signature works, why the payload is readable by anyone, and when a JWT is the right tool.