TL;DR You must verify the signature of JWS in the server always. Client-side signature verification doesn’t gives much, unless you have a specific case where it makes sense don’t do it. You don’t need to verify the signature of a JWS token to check expiration in the client. (unless you were encrypting the claims, aka … Read more
https://www.npmjs.com/package/jsonwebtoken#jwtsignpayload-secretorprivatekey-options-callback payload could be an object literal, buffer or string. Please note that exp is only set if the payload is an object literal.
To generate a secret programatically you could use node’s crypto.randomBytes() var crypto = require(‘crypto’); var jwt = require(‘jsonwebtoken’); crypto.randomBytes(256, function(ex, buf) { if (ex) throw ex; var token = jwt.sign({foo: ‘bar’}, buf); var decoded = jwt.verify(token, buf); }); As for storing this, you’re absolutely correct, you should definitely not store secrets in your source control. … Read more
The main difference is the session storage size and lookup work required from the server: On the server side, JWT stores a single key in memory (or in config file) – called secret key. That key has two purposes, it enables creating new encrypted tokens and it also functions like a master key that “opens … Read more