JSFiddle - React, Tailwind, and code Playground
by bluey
HTML
<script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/hmac-sha512.js"></script>
<input class='datatosend' type='text'/>
<button class='submit'>submit</button>
JavaScript
$('button.submit').on('click', function(){
userFingerprint = 'thisisthefingerprinthash';
dataToSend = $('.datatosend').val();
var hash = CryptoJS.HmacSHA512(dataToSend, userFingerprint);
alert(hash);
});