Verifying an ECDSA-signed JWT using jsrsasign

Table of contents

Source
Further Reading

It's as easy as:

javascript

import jsrsasign from "jrsasign";
const publicKey = jsrsasign.KEYUTIL.getKey(publicKeyStr);
const isVerified = jsrsasign.KJUR.jws.JWS.verifyJWT(jwt, publicKey, {
  alg: ["ES256", "ES384", "ES512"],
});

Source

Tutorial for JWT verification

Further Reading