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Symmetric key encryption #53

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Symmetric key encryption #53

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1418d39
request symmetric key after pkey exchange
842Mono Mar 29, 2018
848d84d
symmetric key exchange after public key exchange
842Mono Apr 2, 2018
e52e0c6
integration of symmetric key encryption done. tested on /demos/sum/cl…
842Mono Apr 3, 2018
fac6bd5
modified check for ready when using symmetric keys
842Mono Apr 3, 2018
bad03d9
presentation and logs
842Mono Apr 3, 2018
901fa50
bug fix and concept fix
842Mono Apr 27, 2018
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155 changes: 155 additions & 0 deletions demos/sum-presentation/client.html
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<html>
<head>
<title>Presentation</title>
<style>
body {
font-family:'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}
.scrollbox {
height:650px;
width:500px;
border:1px solid #CCCCCC;
overflow:auto;
resize:both;
display:inline-block;
}
.i {
display:inline-block;
vertical-align: top;
width:300px;
}
.values {
vertical-align: top;
display:inline-block;
}
.inline {
display:inline-block;
}
.error {
color: #FF0000;
}
</style>
<script src="https://code.jquery.com/jquery-1.11.1.js"></script>
<script src="/socket.io/socket.io.js"></script>
<script src="/lib/sodium.js"></script>
<script src="/lib/jiff-client.js"></script>
<script type="text/javascript">
var jiff_instance;

function connect() {
$('#connectButton').prop('disabled', true);
var computation_id = $('#computation_id').val();
var party_count = parseInt($('#count').val());

if(isNaN(party_count)) {
$("#output").append("<p class='error'>Party count must be a valid number!</p>");
$('#connectButton').prop('disabled', false);
} else {
var options = { party_count: party_count, encryption_type: 'symmetric_key'};
options.onError = function(error) { $("#output").append("<p class='error'>"+error+"</p>"); };
options.onConnect = function() { $("#sumButton").attr("disabled", false); $("#output").append("<p>All parties Connected!</p>"); };
options.logs_box = function(new_line) { $("#logs-box").append("<div>"+new_line+"</div><hr>"); }
options.public_keys_display = function(keys) {
var pkp = "";
for(var i in keys) {
pkp += "(" + i + ") [";
for(var j = 0; j < keys[i].length; ++j)
pkp += keys[i][j] + ", ";
pkp += "]<br/><hr>";
}
$("#public-keys").html(pkp);
}
options.symmetric_keys_display = function(keys) {
var skp = "";
for(var i in keys) {
skp += "(" + i + ") [";
for(var j = 0; j < keys[i].length; ++j)
skp += keys[i][j] +", ";
skp += "]<br/><hr>";
}
$("#symmetric-keys").html(skp);
}
options.id_display = function(id) { $("#jiff_id").html("Party ID: " + id); }
options.public_key_display = function(key){ $("#public_key").html("Public Key: [" + key + "]."); }
options.secret_key_display = function(key){ $("#secret_key").html("Secret Key: [" + key + "]."); }
options.socket_id_display = function(key){ $("#socket_id").html("Socket ID: [" + key + "]."); }

var hostname = window.location.hostname.trim();
var port = window.location.port;
if(port == null || port == '')
port = "80";
if(!(hostname.startsWith("http://") || hostname.startsWith("https://")))
hostname = "http://" + hostname;
if(hostname.endsWith("/"))
hostname = hostname.substring(0, hostname.length-1);
if(hostname.indexOf(":") > -1)
hostanme = hostname.substring(0, hostname.indexOf(":"));

hostname = hostname + ":" + port;
jiff_instance = jiff.make_jiff(hostname, computation_id, options);
}
}

function sum() {
var input = parseInt($("#number").val());

if(isNaN(input))
$("#output").append("<p class='error'>Input a valid number!</p>");
else if(100 < input || input < 0 || input != Math.floor(input))
$("#output").append("<p class='error'>Input a WHOLE number between 0 and 100!</p>");
else if(jiff_instance == null || !jiff_instance.isReady())
alert("Please wait!");
else
MPC(input);
}

function MPC(input) {
$("#sumButton").attr("disabled", true);
$("#output").append("<p>Starting...</p>");
var shares = jiff_instance.share(input);

var sum = shares[1];
for(var i = 2; i <= jiff_instance.party_count; i++)
sum = sum.sadd(shares[i]);

sum.open(handleResult);
}

function handleResult(result) {
$("#output").append("<p>Result is: " + result + "</p>");
$("#sumButton").attr("disabled", false);
}
</script>
</head>
<body>
<h1>Presentation</h1>
<p>This is a sum demo that tries to present what is happening under the hood.</p>
<label for="computation_id">Computation ID</label><input id="computation_id" value="test-sum"></input><br/><br/>
<label for="count">Party Count<label> <input id="count" pattern="[0-9]*"> &nbsp; <button id="connectButton" onclick="connect();">Connect</button><br/><br/>
<hr/>
<h1>Sum Numbers under MPC</h1>
<label for="number">Input Number (between 0 and 100)</label> <input id="number" pattern="[0-9]+"> &nbsp; <button onclick="sum();" disabled="disabled" id="sumButton">Sum</button><br/>
<div id="output"></div><br/>
<hr/><br/>
<div class="values">
<div id="jiff_id">Party ID: </div>
<div id="socket_id">Socket ID: </div>
<div id="public_key">Public Key: []</div>
<div id="secret_key">Secret Key: []</div>
</div>
<br/><br/><br/>
<div>
<div class="scrollBox" id="logs-box">
</div>
<div class="i">
<div>Public Keymap</div><br/>
<div id="public-keys">...</div>
</div>
<div class="i">
<div>Symmetric Key Map</div><br/>
<div id="symmetric-keys">...</div>
</div>
</div>
<br/><br/>
</body>
</html>
14 changes: 14 additions & 0 deletions demos/sum-presentation/server.js
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var express = require('express');
var app = express();

Check notice on line 2 in demos/sum-presentation/server.js

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Codacy Production / Codacy Static Code Analysis

demos/sum-presentation/server.js#L2 

A CSRF middleware was not detected in your express application.
var http = require('http').Server(app);
var jiff_instance = require('../../lib/jiff-server').make_jiff(http, {logs:true});

// Serve static files.
app.use("/demos", express.static("demos"));
app.use("/lib", express.static("lib"));
app.use("/lib/ext", express.static("lib/ext"));
http.listen(8080, function() {
console.log('listening on *:8080');
});

console.log("Direct your browser to *:8080/demos/sum-presentation/client.html.");
2 changes: 1 addition & 1 deletion demos/sum/client.html
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Expand Up @@ -22,7 +22,7 @@
$("#output").append("<p class='error'>Party count must be a valid number!</p>");
$('#connectButton').prop('disabled', false);
} else {
var options = { party_count: party_count};
var options = { party_count: party_count, encryption_type: 'symmetric_key'};
options.onError = function(error) { $("#output").append("<p class='error'>"+error+"</p>"); };
options.onConnect = function() { $("#sumButton").attr("disabled", false); $("#output").append("<p>All parties Connected!</p>"); };

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2 changes: 1 addition & 1 deletion demos/sum/party.js
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@@ -1,6 +1,6 @@
var jiff_instance;

var options = {party_count: 2};
var options = {party_count: 2, encryption_type: 'symmetric_key'};
options.onConnect = function() {
var shares = jiff_instance.share(3);
var sum = shares[1];
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