JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jsencrypt/2.3.1/jsencrypt.min.js"></script>

JavaScript

const crypt = new JSEncrypt({
  default_key_size: 1024
});
crypt.getKey();
let publicKey = crypt.getPublicKeyB64();
let privateKey = crypt.getPrivateKeyB64();
console.log(publicKey.length, privateKey.length);
console.log(publicKey);