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ultimatedice.html
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ultimatedice.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>UltimateDice verify</title>
<link rel="stylesheet" href="./lib/main.css">
<link rel="stylesheet" href="./lib/bootstrap/css/bootstrap.min.css">
<script src="./lib/GoogleAnalytics.js"></script>
<script src="./lib/vue.min.js"></script>
<script src="./lib/crypto-js.js"></script>
<script src="./lib/tools.js"></script>
</head>
<body>
<div id="app" class="main">
<h1 class="text-center pb-5">UltimateDice verify</h1>
<hr>
<form class="py-5">
<h2 class="text-center">Input</h2>
<div class="form-group">
<input :value="client_seed" @change="client_seed = $event.target.value" class="form-control" placeholder="Client Seed">
</div>
<div class="form-group">
<input :value="server_seed" @change="server_seed = $event.target.value" class="form-control" placeholder="Server Seed">
</div>
<div class="form-group">
<input :value="server_seed_hash" @change="server_seed_hash = $event.target.value" class="form-control" placeholder="Server Seed Hash">
</div>
<div class="form-group">
<input :value="nonce" @change="nonce = $event.target.value" class="form-control" placeholder="Nonce">
</div>
</form>
<hr>
<form class="py-5">
<h2 class="text-center pb-5">Output</h2>
<div class="form-group">
<label>sha256(server_seed)</label>
<input class="form-control" readonly :value="sha256(server_seed)">
</div>
<div class="form-group">
<label>hmac_sha256(client_seed:nonce, server_seed)</label>
<input class="form-control" readonly :value="result_hash">
</div>
</form>
<hr>
<form class="py-5">
<h2 class="text-center pb-5">Results</h2>
<h5>Final Result</h5>
<h5>hmac_sha256(client_seed:nonce, server_seed)</h5>
<div class="form-group" style="overflow-x: auto;">
<table class="table table-sm table-bordered">
<tbody>
<tr>
<td v-for="(item, index) in results.dec" :key="index" :class="{'text-muted': index > 3}">{{ item }}</td>
</tr>
<tr>
<td v-for="(item, index) in results.hex" :key="index" :class="{'text-muted': index > 3}">{{ item }}</td>
</tr>
</tbody>
</table>
</div>
<h5>Bytes to Number</h5>
<div class="form-group">
({{results.hex[0] + ', ' + results.hex[1] + ', ' + results.hex[2] + ', ' + results.hex[3]}}) -> [0, ... 4] = <span class="text-success">{{Math.floor(numResult * 10000)}}</span>
<div><span> </span><span> {{Number(results.hex[0] / 256).toFixed(9)}} </span><span>({{results.hex[0]}} / (256 ^ 1))</span></div>
<div><span>+ </span><span>{{Number(results.hex[1] / (256 * 256)).toFixed(9)}} </span><span>({{results.hex[1]}} / (256 ^ 2))</span></div>
<div><span>+ </span><span>{{Number(results.hex[2] / (256 * 256 * 256)).toFixed(9)}} </span><span>({{results.hex[2]}} / (256 ^ 3))</span></div>
<div><span>+ </span><span>{{Number(results.hex[3] / (256 * 256 * 256 * 256)).toFixed(9)}} </span><span>({{results.hex[3]}} / (256 ^ 4))</span></div>
<div><span>= </span><span>{{(numResult * 10000).toFixed(6)}} </span>(* 10000)</div>
<div><span>= </span><span class="text-success">{{Math.floor(numResult * 10000)}}</span></div>
</div>
</form>
</div>
</body>
<script>
let qs = tools.queryString();
var app = new Vue({
el: '#app',
data: {
/** inputs */
client_seed: qs.c || '',
server_seed: qs.s || '',
server_seed_hash: qs.h || '',
nonce: parseInt(qs.n) || 0,
},
computed: {
result_hash () {
return this.hmac_sha256(this.client_seed + ':' + this.nonce, this.server_seed);
},
result_hash_list () {
return String(this.result_hash)
},
results () {
let list = this.result_hash_list
let res = {
dec: [],
hex: []
}
for (let i = 0; i < list.length; i += 2) {
let dext = list[i] + list[i + 1]
let hext = parseInt(dext, 16)
res.dec.push(dext)
res.hex.push(hext)
}
return res
},
numResult () {
let num = 0
let list = this.results.hex
for (let i = 0; i < 4; i++) {
num += list[i] / Math.pow(256, (i + 1))
}
return num.toFixed(9)
}
},
watch: {
'this.numResult'() {
ga('send', 'event', 'UltimateDice', 'verify', this.server_seed, {metric0: this.client_seed, metric1: this.nonce})
}
},
created () {
console.log(this.result_hash_list)
},
methods: {
hmac_sha256 (msg, salt) {
return CryptoJS.HmacSHA256(msg, salt);
},
sha512 (value) {
return CryptoJS.SHA512(CryptoJS.enc.Utf8.parse(value));
},
sha256 (value) {
return CryptoJS.SHA256(CryptoJS.enc.Utf8.parse(value));
},
parseInt (value) {
return window.parseInt(value, 16);
},
}
});
</script>
</html>