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index-SHA256.html
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<html><head>
<link rel="stylesheet" type="text/css" href="css/normalize.css">
<link rel="stylesheet" type="text/css" href="css/bootstrap.css">
<link rel="stylesheet" type="text/css" href="css/result-light.css">
<script type="text/javascript" src="js/jquery-3.3.1.min.js" ></script>
<script type="text/javascript" src="js/sha.js" ></script>
<script type="text/javascript" src="js/jquery-qrcode-0.14.0.min.js" ></script>
<link rel="shortcut icon" href="img/favico.png">
<title>TOKEN2 TOTP toolset SHA-256</title>
</head>
<body>
<div class="container">
<form name=frmConvert>
<div class="container">
<h1 class="display-3">TOKEN2 TOTP toolset <sup>SHA-256</sup></h1>
<div class="card">
<div class="card-body">
<h5>Features</h5>
<blockquote>
<ol class="list-group list-group-flush">
<li>⏵for seeds in SHA-256</li>
<li>⏵convert hex seed to base32 format</li>
<li>⏵generate QR image based on hex or base32 seed key values</li>
<li>⏵generate random seed values (i.e. for Token2 programmable tokens)</li>
<li>⏵verify the time drift with customizable skew value</li>
<li>⏵create CSV for Azure MFA import</li>
</oL>
</blockquote>
</div>
</div>
<hr>
<div class="row">
<div class="col-md-6">
<h4>Seed (sha256) <sup> in base32</sup></h4>
<center> <div class="alert alert-info">
<div class="input">
<input style="font-size:small" type="text" size="66" name="secret" id="secret" class="xlarge" value="3377FRG7XZKXQLENNW7AZNT5QOCQE5ND6UNRQIV3QXHFXEUKPU3Q" onchange="updateOtp(); return false; " onKeyup="updateOtp(); return false; " onClick="updateOtp(); return false; " />
<button class="btn btn-primary btn-sm" onclick=" inputHex(); updateOtp(); return false;">⇥ enter HEX</button>
<button class="btn btn-primary btn-sm" onclick="$('#secret').val(randombase32()); updateOtp(); return false;">↝ random</button>
</div>
</div></center>
<h4>QR code</h4>
<p> <div >
<center>
<div class="input"><div id="QR" ></div></div>
</center>
</div></p>
</div>
<div class="col-md-6">
<h4>OTP <sup>verification & drift detection</sup></h4>
<div class="alert alert-success" style="min-width:250px">
<span style="float:right; font-size:large"><kbd> ⏱ <span style="min-width:5em" id='updatingIn'>--</span></kbd></span>
<center><h1 ><span style="border-style: solid; border-width: 0px; "> <span class="label label-primary" id='otp' ></span> </span></h1></center>
</div><span style="float:right; width:5em">
<i >skew ±</i>
<input size=2 type=number id=skew class="form-control" min="0" onchange="updateOtp(); return false; " onKeyup="updateOtp(); return false; " onClick="updateOtp(); return false; " value=4 />
</span>
<div class="label label-primary" id='otp2'></div>
</div>
</div>
</div>
<hr>
<div class="row">
<div class="col-md-6" style="font-size:small" >
<h4>Seed data</h4>
<table class="table table-striped table-sm table-bordered" style="font-size:small">
<tr><td>Unix epoch / 30</td><td> <span class="label label-default" id='epoch'></span></td></tr>
<tr><td>HMAC(secret, time)</td><td> <span class="label label-default" id='hmac'></span></td></tr>
<tr><td>Seed (hex)</td><td><span class="label label-default" id="secretHex"></span> </td></tr>
<tr><td>Hex length</td><td><span id='secretHexLength'></span></b></td></tr>
</table>
</div>
<div class="col-md-6">
<h4>Token data </h4>
<div class="form-group">
<label for="serial">Serial number <sup>digits only</sup></label>
<input type="number" class="form-control" id="serial" name=serial placeholder="token's serial number" value="2300000000000">
</div>
<div class="form-group">
<label for="exampleInputPassword1">Token model <sup>separate brand and model with a comma</sup></label>
<input type="text" class="form-control" id=name name=name value="Token2,miniOTP-1">
</div>
<div class="form-group">
<label for="exampleInputPassword1">Username <sup>as UPN </sup></label>
<input type="text" class="form-control" id=upn name=upn value="[email protected]">
</div>
</div>
</div>
</div>
<div class="container">
<h3 >CSV generation <sup>csv in Azure MFA format</sup></h3>
<span style="float:right"><button class="btn btn-primary btn-sm" onclick="addCSV(); return false;"> ⇲ append to CSV </button> <button type="button" class="btn btn-secondary btn-sm" onclick="download()">save as file</button></span> <br>
<textarea id=AzureCSV name=AzureCSV style="width:100%;" rows=15 cols=20>upn,serial number,secret key,timeinterval,manufacturer,model</textarea>
</div>
</form>
<script>
$(document).ready(function() {
//Load token data values so you dont have to retype every time
loadSettings();
});
$(window).on('unload', function(){
saveSettings();
loadSettings();
});
function loadSettings() {
if (localStorage.serial!="") {
$('#serial').val(localStorage.serial);
$('#name').val(localStorage.name);
$('#upn').val(localStorage.upn);
}
}
function saveSettings() {
localStorage.serial = $('#serial').val();
localStorage.name = $('#name').val();
localStorage.upn = $('#upn').val();
}
var base32_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
function inputHex() {
var strHex = prompt("Please enter the seed in hex format. String of HEX type must be in byte increments ", "");
if (strHex != null) {
$('#secret').val(hex2base32(strHex));
}
}
function hex2base32(hex) {
var binary = new Array();
for (var i=0; i<hex.length/2; i++) {
var h = hex.substr(i*2, 2);
binary[i] = parseInt(h,16);
}
return binary_to_base32(binary);
}
function binary_to_base32(input) {
var ret = new Array();
var ret_len = 0;
var i = 0;
var unpadded_length = input.length;
while (input.length % 5) {
input[input.length] = 0;
}
for(i=0; i<input.length; i+=5) {
ret += base32_chars.charAt((input[i] >> 3));
ret += base32_chars.charAt(((input[i] & 0x07) << 2) | ((input[i+1] & 0xc0) >> 6));
if (i+1 >= unpadded_length) {
ret += "======"
break;
}
ret += base32_chars.charAt(((input[i+1] & 0x3e) >> 1));
ret += base32_chars.charAt(((input[i+1] & 0x01) << 4) | ((input[i+2] & 0xf0) >> 4));
if (i+2 >= unpadded_length) {
ret += "===="
break;
}
ret += base32_chars.charAt(((input[i+2] & 0x0f) << 1) | ((input[i+3] & 0x80) >> 7));
if (i+3 >= unpadded_length) {
ret += "==="
break;
}
ret += base32_chars.charAt(((input[i+3] & 0x7c) >> 2));
ret += base32_chars.charAt(((input[i+3] & 0x03) << 3) | ((input[i+4] & 0xe0) >> 5));
if (i+4 >= unpadded_length) {
ret += "="
break;
}
ret += base32_chars.charAt(((input[i+4] & 0x1f)));
}
return ret;
}
function download(){
var text = document.getElementById("AzureCSV").value;
text = text.replace(/\n/g, "\r\n"); // To retain the Line breaks.
var blob = new Blob([text], { type: "text/plain"});
var anchor = document.createElement("a");
anchor.download = "MFA-tokens.csv";
anchor.href = window.URL.createObjectURL(blob);
anchor.target ="_blank";
anchor.style.display = "none"; // just to be safe!
document.body.appendChild(anchor);
anchor.click();
document.body.removeChild(anchor);
return false;
}
function dec2hex(s) { return (s < 15.5 ? '0' : '') + Math.round(s).toString(16); }
function hex2dec(s) { return parseInt(s, 16); }
function base32tohex(base32) {
var base32chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
var bits = "";
var hex = "";
for (var i = 0; i < base32.length; i++) {
var val = base32chars.indexOf(base32.charAt(i).toUpperCase());
bits += leftpad(val.toString(2), 5, '0');
}
for (var i = 0; i+4 <= bits.length; i+=4) {
var chunk = bits.substr(i, 4);
hex = hex + parseInt(chunk, 2).toString(16) ;
}
return hex;
}
function leftpad(str, len, pad) {
if (len + 1 >= str.length) {
str = Array(len + 1 - str.length).join(pad) + str;
}
return str;
}
function randombase32() {
var text = "";
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
for (var i = 0; i < 64; i++)
text += possible.charAt(Math.floor(Math.random() * possible.length));
return text;
}
if ($('#secret').val()=="") {
$('#secret').val(randombase32());
}
function updateOtp() {
var key = base32tohex($('#secret').val());
key = key.toUpperCase();
key =key.substring(0,64);
var epoch = Math.round(new Date().getTime() / 1000.0);
var time = leftpad(dec2hex(Math.floor(epoch / 30)), 16, '0');
//alert(key);
// updated for jsSHA v2.0.0 - http://caligatio.github.io/jsSHA/
var shaObj = new jsSHA("SHA-256", "HEX");
shaObj.setHMACKey(key, "HEX");
shaObj.update(time);
var hmac = shaObj.getHMAC("HEX");
$('#QR').html('');
$('#QR').qrcode({ text: 'otpauth://totp/[email protected]?secret=' + $('#secret').val(),size: 300,});
$('#secretHex').text(key);
$('#secretHexLength').text((key.length * 4) + ' bits');
$('#epoch').text(time);
$('#hmac').empty();
if (hmac == 'KEY MUST BE IN BYTE INCREMENTS') {
$('#hmac').append($('<span/>').addClass('label important').append(hmac));
} else {
var offset = hex2dec(hmac.substring(hmac.length - 1));
var part1 = hmac.substr(0, offset * 2);
var part2 = hmac.substr(offset * 2, 8);
var part3 = hmac.substr(offset * 2 + 8, hmac.length - offset);
if (part1.length > 0 ) $('#hmac').append($('<span/>').addClass('label label-default').append(part1));
$('#hmac').append($('<span/>').addClass('label label-primary').append(part2));
if (part3.length > 0) $('#hmac').append($('<span/>').addClass('label label-default').append(part3));
}
var otp = (hex2dec(hmac.substr(offset * 2, 8)) & hex2dec('7fffffff')) + '';
otp = (otp).substr(otp.length - 6, 6);
$('#otp').html(" "+otp+" ");
//Update previous and next OTPs
var otptable = '<table class="table table-striped table-sm table-bordered" style="width:100%">';
otptable=otptable+'<tr><td><b>Skew</b></td><td><b>OTP</b></td></tr>';
var i = 0;
for (i=-$('#skew').val()*30; i <= $('#skew').val()*30; i += 30){
if (i==0) {
otptable=otptable+'<tr><td><b>'+i+' sec.</b></td><td><b>⏵'+updateOtp2(i)+'⏴</b></td></tr>'
} else {
otptable=otptable+'<tr><td>'+i+' sec.</td><td>'+updateOtp2(i)+'</td></tr>';
}
}
otptable=otptable+'</table>';
$('#otp2').html(otptable);
}
function updateOtp2(val) {
var key = base32tohex($('#secret').val());
key = key.toUpperCase();
key =key.substring(0,64);
var epoch = Math.round(new Date().getTime() / 1000.0)+val;
var time = leftpad(dec2hex(Math.floor(epoch / 30)), 16, '0');
// updated for jsSHA v2.0.0 - http://caligatio.github.io/jsSHA/
var shaObj = new jsSHA("SHA-256", "HEX");
shaObj.setHMACKey(key, "HEX");
shaObj.update(time);
var hmac = shaObj.getHMAC("HEX");
$('#secretHex').text(key);
$('#secretHexLength').text((key.length * 4) + ' bits');
$('#hmac').empty();
if (hmac == 'KEY MUST BE IN BYTE INCREMENTS') {
$('#hmac').append($('<span/>').addClass('label important').append(hmac));
} else {
var offset = hex2dec(hmac.substring(hmac.length - 1));
var part1 = hmac.substr(0, offset * 2);
var part2 = hmac.substr(offset * 2, 8);
var part3 = hmac.substr(offset * 2 + 8, hmac.length - offset);
if (part1.length > 0 ) $('#hmac').append($('<span/>').addClass('label label-default').append(part1));
$('#hmac').append($('<span/>').addClass('label label-primary').append(part2));
if (part3.length > 0) $('#hmac').append($('<span/>').addClass('label label-default').append(part3));
}
var otp = (hex2dec(hmac.substr(offset * 2, 8)) & hex2dec('7fffffff')) + '';
otp = (otp).substr(otp.length - 6, 6);
return otp;
}
function timer()
{
var epoch = Math.round(new Date().getTime() / 1000.0);
var countDown = 30 - (epoch % 30);
if (epoch % 30 == 0) updateOtp();
if (countDown<10){ sSec="0"+countDown; } else { sSec=countDown; }
$('#updatingIn').text(sSec);
}
$(function () {
updateOtp();
$('#update').click(function (event) {
updateOtp();
event.preventDefault();
});
$('#secret').keyup(function () {
updateOtp();
});
setInterval(timer, 1000);
});
function addCSV() {
//upn,serial number,secret key,timeinterval,manufacturer,model
// [email protected],1234567,1234567890abcdef1234567890abcdef,60,Contoso,HardwareKey
document.frmConvert.AzureCSV.value=document.frmConvert.AzureCSV.value+"\n"+document.frmConvert.upn.value+","+ document.frmConvert.serial.value+','+document.frmConvert.secret.value+",30,"+document.frmConvert.name.value ;
}
</script>
</html>