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<!DOCTYPE html>
<!--
Copyright 2010 Google Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Original slides: Marcin Wichary ([email protected])
Modifications: Ernest Delgado ([email protected])
Alex Russell ([email protected])
Brad Neuberg
-->
<!--
Modification: Shuo Tang ([email protected])
-->
<html manifest="cache.manifest">
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=Edge;chrome=1" />
<title>IBOS OSDI Presentation</title>
<script>
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}
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<style>
body {
font: 16px "Lucida Grande", "Trebuchet MS", Verdana, sans-serif;
padding: 0;
margin: 0;
width: 100%;
height: 100%;
position: absolute;
left: 0px; top: 0px;
}
.presentation {
position: absolute;
height: 100%;
width: 100%;
left: 0px;
top: 0px;
display: block;
overflow: hidden;
background: #778;
}
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width: 100%;
height: 100%;
left: 0;
top: 0;
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-webkit-transition: -webkit-transform 1s ease-in-out;
-moz-transition: -moz-transform 1s ease-in-out;
-o-transition: -o-transform 1s ease-in-out;
transition: transform 1s ease-in-out;
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.slide {
display: none;
position: absolute;
overflow: hidden;
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height: 700px;
left: 50%;
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border-radius: 20px 0; /* includes Opera 10.5+ */
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-moz-border-radius: 0 20px;
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-webkit-transform: translateX(50px) scale(0.8) rotateY(10deg);
-moz-transform: translateX(50px) scale(0.8) rotateY(10deg);
-o-transform: translateX(50px) scale(0.8) rotateY(10deg);
transform: translateX(50px) scale(0.8) rotateY(10deg);
}
/* Content */
/*
Font sizes:
header h1 - 50px
h2, p - 20px
default, pre, input - 16px
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.html,
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font-family: 'Droid Sans';
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padding: 6px 10px 3px 10px;
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line-height: 30px;
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letter-spacing: 0;
bottom: 10px;
position: relative;
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border-radius: 10px;
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}
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background: -webkit-gradient(linear, left top, left bottom, from(#e88), to(#fee));
background-color: #e88;
background: -moz-linear-gradient(left top, #e88, #fee);
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-webkit-column-count: 2;
-moz-column-count: 2;
column-count: 2;
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//.summary li::before, .bullets li::before {
// content: '· ';
//}
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-webkit-text-stroke-color: red;
-webkit-text-stroke-width: 1px;
} /* currently webkit-only */
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font-size:25px;
color:#000;
text-align:center;
}
.vertical {
-webkit-transform: rotate(90deg);
-moz-transform: rotate(90deg);
}
</style>
<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-3598266-1']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
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</script>
</head>
<body>
<script>
document.body.style.zoom = window.innerHeight / 750.0;
</script>
<div class="presentation">
<div id="presentation-counter"></div>
<div class="slides">
<div class="slide">
<style>
.intro h1, .intro h2 {
color: white;
}
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letter-spacing: -2px;
font-size: 60px;
}
.intro h2 {
margin-top: -5px;
font-size: 30px;
letter-spacing: -1px;
}
</style>
<section class="middle intro">
<hgroup>
<h1>Trust and Protection in the Illinois Browser Operating System</h1>
<h2>Shuo Tang, Haohui Mai, and Sam King</h2>
</hgroup>
<style>
#uiuc {
width: 60%;
margin: 30px auto;
display: block;
}
</style>
<img id="uiuc" src="src/uiuc.png" />
</section>
</div>
<div class="slide">
<header>The Web is ubiquitous</header>
<section>
<ul class="bullets">Email, banking, social networking, and more</ul>
<style>
#web {
width: 80%;
margin: 30px auto;
display: block;
}
</style>
<img id="web" src="src/web.png" />
</section>
</div>
<div class="slide" id="slide_attacks">
<header>Attacks at different layers</header>
<section>
<style>
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border-collapse:collapse;
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width:240px
}
</style>
<table id="animals">
<tr id="bee">
<td><img src="src/bee.jpg" /></td>
<td>Web app vulnerabilities</td>
</tr>
<tr id="snake">
<td><img src="src/snake.jpg" /></td>
<td>Browser vulnerabilities</td>
</tr>
<tr id="shark">
<td><img src="src/shark.jpg" /></td>
<td>OS & lib vulnerabilities</td>
</tr>
</table>
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return true;
}
if (att_counter == 2) {
document.getElementById("snake").style.visibility="hidden";
att_counter--;
return true;
}
if (att_counter == 3) {
document.getElementById("shark").style.visibility="hidden";
att_counter--;
return true;
}
return false;
};
</script>
</section>
</div>
<div class="slide">
<header>Defend at lower layers</header>
<section>
<table id="animals">
<tr>
<td><img src="src/bee.jpg" /></td>
<td>Web app vulnerabilities</td>
</tr>
<tr style="visibility:visible">
<td><img src="src/snake.jpg" /></td>
<td>Browser vulnerabilities</td>
</tr>
<tr style="visibility:visible">
<td><img src="src/shark.jpg" /></td>
<td>OS & lib vulnerabilities</td>
</tr>
</table>
</section>
</div>
<div class="slide">
<header>Insecure web browsers</header>
<section>
<ul class="bullets">
<li>Monolithic</li>
<ul class="summary"><li class="sub">All in one address space</li></ul>
<li>Easy to exploit</li>
</ul>
<div style="position:absolute; left:550px; top:250px;">
<div class="trusted" style="width:200px; height:250px; position:absolute; left:0px; top:0px;">
<div class="untrusted vertical" style="width:150px; height:40px; position:absolute; left:-35px; top:70px; line-height:40px">Web App </div>
<div class="untrusted vertical" style="width:150px; height:40px; position:absolute; left:20px; top:70px; line-height:40px">Web App </div>
<div class="untrusted vertical" style="width:150px; height:40px; position:absolute; left:75px; top:70px; line-height:40px">Web App </div>
<span style="line-height:400px;">Firefox</span>
</div>
<div class="trusted" style="width:200px; height:100px; position:absolute; left:0px; top:250px; line-height:100px;">
Windows
</div>
</div>
<p class="center" style="position:absolute; left:490px; top:600px; font-size:22px">Red indicates trusted computing base</p>
</section>
</div>
<div class="slide">
<header>Secure web browsers not enough</header>
<section>
<ul class="bullets">
<li>Isolate web apps</li>
<ul class="summary"><li class="sub">Contain attacks</li></ul>
<li>Still have huge trusted computing base (TCB)</li>
</ul>
<div style="position:absolute; left:300px; top:350px">
<div class="untrusted vertical" style="width:160px; height:80px; position:absolute; left:0px; top:0px; line-height:80px">Web App </div>
<div class="untrusted vertical" style="width:160px; height:80px; position:absolute; left:150px; top:0px; line-height:80px">Web App </div>
<div class="untrusted vertical" style="width:160px; height:80px; position:absolute; left:300px; top:0px; line-height:80px">Web App </div>
<div class="trusted" style="width:380px; height:50px; position:absolute; left:40px; top:120px; line-height:50px">
OP/Chrome Browser Kernel
</div>
<div class="trusted" style="width:380px; height:100px; position:absolute; left:40px; top:170px; line-height:150px;">
<div class="trusted" style="width:100px; height:35px; position:absolute; left:20px; top:5px; line-height:35px;">TPC/IP</div>
<div class="trusted" style="width:100px; height:35px; position:absolute; left:140px; top:5px; line-height:35px;">X Server</div>
<div class="trusted" style="width:100px; height:35px; position:absolute; left:260px; top:5px; line-height:35px;">File Sys.</div>
<div class="trusted" style="width:100px; height:35px; position:absolute; left:20px; top:50px; line-height:35px;">Drivers</div>
Linux
</div>
</div>
</section>
</div>
<div class="slide" id="slide_microkernel">
<header>Microkernel solves all problems?</header>
<section>
<ul class="bullets">
<li>Better isolation</li>
<li>But...</li>
<ul class="summary" style="visibility:hidden" id="still">
<li class="sub">Still needs to trust all the components</li>
</ul>
</ul>
<div style="position:absolute; left:200px; top:500px; line-height:40px">
<div class="trusted vertical" style="width:200px; height:40px; position:absolute; left:0px; top:0px;">Browser Kernel </div>
<div class="untrusted vertical" style="background-color:#FF6347; width:200px; height:40px; position:absolute; left:100px; top:0px;">TCP/IP </div>
<div class="untrusted vertical" style="background-color:#FF6347; width:200px; height:40px; position:absolute; left:160px; top:0px;">X Server</div>
<div class="untrusted vertical" style="background-color:#FF6347; width:200px; height:40px; position:absolute; left:220px; top:0px;">File Sys. </div>
<div class="untrusted vertical" style="background-color:#FF6347; width:200px; height:40px; position:absolute; left:280px; top:0px;">Drivers </div>
<div class="untrusted vertical" style="width:200px; height:40px; position:absolute; left:380px; top:0px;">Web App </div>
<div class="untrusted vertical" style="width:200px; height:40px; position:absolute; left:440px; top:0px;">Web App </div>
<div class="untrusted vertical" style="width:200px; height:40px; position:absolute; left:500px; top:0px;">Web App </div>
<div class="trusted" style="width:540px; height:50px; position:absolute; left:80px; top:120px; line-height:50px">
Microkernel
</div>
</div>
</section>
<script>
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</script>
</div>
<div class="slide">
<header>Illinois Browser Operating System (IBOS)</header>
<section>
<ul class="bullets">
<li>Goal: design new OS to make a single app more secure</li>
<li>Reduced TCB for web browser</li>
</ul>
<style>
.greenline {
border-style:solid; border-width:2px; border-color:green; position:absolute;
}
</style>
<div style="position:absolute; left:200px; top:450px; line-height:40px">
<div class="untrusted vertical" style="width:200px; height:40px; position:absolute; left:0px; top:0px; text-decoration:line-through">Browser kernel </div>
<div class="untrusted vertical" style="background-color:#FAEBD7; width:200px; height:40px; position:absolute; left:100px; top:0px;">TCP/IP </div>
<div class="untrusted vertical" style="background-color:#FAEBD7; width:200px; height:40px; position:absolute; left:160px; top:0px;">X Server</div>
<div class="untrusted vertical" style="background-color:#FAEBD7; width:200px; height:40px; position:absolute; left:220px; top:0px;">File Sys. </div>
<div class="untrusted vertical" style="background-color:#FAEBD7; width:200px; height:40px; position:absolute; left:280px; top:0px;">Drivers </div>
<div class="untrusted vertical" style="width:200px; height:40px; position:absolute; left:380px; top:0px;">Web App </div>
<div class="untrusted vertical" style="width:200px; height:40px; position:absolute; left:440px; top:0px;">Web App </div>
<div class="untrusted vertical" style="width:200px; height:40px; position:absolute; left:500px; top:0px;">Web App </div>
<div style="border-style:dashed; border-width:3px; border-color:#B22222; position:absolute; left:25px; top:145px; width:650px"></div>
<p class="center" style="position:absolute; left:-100px; top: 85px">Browser Abstrations</p>
<div class="greenline" style="left:200px; top:126px; height:42px"></div>
<div class="greenline" style="left:260px; top:126px; height:42px"></div>
<div class="greenline" style="left:320px; top:126px; height:42px"></div>
<div class="greenline" style="left:380px; top:126px; height:42px"></div>
<div class="greenline" style="left:480px; top:126px; height:42px"></div>
<div class="greenline" style="left:540px; top:126px; height:42px"></div>
<div class="greenline" style="left:600px; top:126px; height:42px"></div>
<div class="trusted" style="width:540px; height:50px; position:absolute; left:80px; top:170px; line-height:50px">
IBOS Kernel
</div>
</div>
</section>
</div>
<div class="slide">
<header>IBOS overview</header>
<section>
<ul class="bullets">
<li>IBOS architecture</li>
<li>Security invariants</li>
<li>Applying security invariants to IBOS</li>
<li>Evaluation</li>
<li>Conclusion</li>
</ul>
</section>
</div>
<div class="slide">
<header>IBOS architecture</header>
<section>
<style>
.vertical-middle {
display: table-cell;
vertical-align: middle;
text-align: center;
}
</style>
<div style="position:absolute; top:100px; left:100px">
<div class="untrusted" style="width:150px; height:150px; position:absolute; left:0px; top:0px;">
<div style="position:absolute; width:100%; top:35%">Traditional App</div>
</div>
<div class="untrusted" style="width:150px; height:50px; position:absolute; left:0px; top:150px; line-height:50px">
Unix Layer
</div>
<div class="untrusted" style="width:150px; height:200px; position:absolute; left:200px; top:0px">
<div style="position:absolute; width:100%; top:35%">Web Page Instance</div>
</div>
<div class="untrusted" style="width:150px; height:200px; position:absolute; left:370px; top:0px;">
<div style="position:absolute; width:100%; top:35%">Web Page Instance</div>
</div>
<div class="untrusted" style="width:150px; height:200px; position:absolute; left:540px; top:0px">
<div style="position:absolute; width:100%; top:35%">Web Page Instance</div>
</div>
<div class="untrusted" style="width:690px; height:100px; position:absolute; left:0px; top:202px;">
<div class="untrusted" style="width:250px; height:30px; position:absolute; left:0px; top:0px; line-height:30px; color:#B22222; border-width:0px">
Browser Abstrations
</div>
<div class="untrusted" style="width:150px; height:40px; position:absolute; left:50px; top:40px; line-height:40px;">UI</div>
<div class="untrusted" style="width:150px; height:40px; position:absolute; left:265px; top:40px; line-height:40px;">Storage</div>
<div class="untrusted" style="width:150px; height:40px; position:absolute; left:460px; top:20px; line-height:40px;">Net Process</div>
<div class="untrusted" style="width:150px; height:40px; position:absolute; left:470px; top:30px; line-height:40px;">Net Process</div>
<div class="untrusted" style="width:150px; height:40px; position:absolute; left:480px; top:40px; line-height:40px;">Net Process</div>
</div>
<div class="untrusted" style="width:690px; height:50px; position:absolute; left:0px; top:300px; line-height:50px">Device Drivers</div>
<div class="trusted" style="width:690px; height:50px; position:absolute; left:0px; top:350px; line-height:50px">IBOS Kernel</div>
<div class="trusted" style="width:690px; height:50px; position:absolute; left:0px; top:400px; line-height:50px">Hardware</div>
<div style="width:890px; position:absolute; left:-95px; top:450px">
<p class="center">Make browser abstractions first-class OS abstractions</p>
<p class="center">Maintain browser security policy even if
components completely compromised</p>
</div>
</div>
</section>
</div>
<div class="slide" id="slide_inv">
<header>Security invariants</header>
<section>
<p class="center" style="visibility:hidden" id="inv_1">Real-world invariant: see fireworks on the fourth of July</p>
<style>
#inv {
width: 80%;
margin: 30px auto;
display: block;
visibility: hidden;
}
</style>
<img id="inv" src="src/inv.png" />
<p class="center" style="visibility:hidden" id="inv_2">Check key properties without understanding the implementation</p>
<p class="center" style="visibility:hidden" id="inv_3">Challenge: check security properties using security invariants</p>
</section>
<script>
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</div>
<div class="slide">
<header>IBOS label</header>
<section>
<ul class="bullets">
<li>Browser related label</li>
<ul class="summary">
<li class="sub">Origin < protocol, domain, port ></li>
<div style="width:600px; height:200px;">
<span style="position:absolute; left:250px; top:270px; color: white">http://www.cs.uiuc.edu:80</span>
<canvas id="label" width="350" height="50" style="position:absolute; left:250px; top:315px;"></canvas>
<span style="position:absolute; left:250px; top:370px; color: white; font-size:20px">protocol</span>
<span style="position:absolute; left:420px; top:370px; color: white; font-size:20px">domain</span>
<span style="position:absolute; left:560px; top:370px; color: white; font-size:20px">port</span>
<script>
var label_ctx = document.getElementById("label").getContext("2d");
label_ctx.lineWidth = 4;
label_ctx.strokeStyle = "#CD5C5C";
label_ctx.beginPath();
label_ctx.moveTo(5,10);
label_ctx.quadraticCurveTo(5,30,10,30);
label_ctx.lineTo(35, 30);
label_ctx.quadraticCurveTo(40,30,40,40);
label_ctx.quadraticCurveTo(40,30,45,30);
label_ctx.lineTo(70, 30);
label_ctx.quadraticCurveTo(75,30,75,10);
label_ctx.stroke();
label_ctx.beginPath();
label_ctx.moveTo(85,10);
label_ctx.quadraticCurveTo(85,30,90,30);
label_ctx.lineTo(190, 30);
label_ctx.quadraticCurveTo(195,30,195,40);
label_ctx.quadraticCurveTo(195,30,200,30);
label_ctx.lineTo(300, 30);
label_ctx.quadraticCurveTo(305,30,305,10);
label_ctx.stroke();
label_ctx.beginPath();
label_ctx.moveTo(315,10);
label_ctx.quadraticCurveTo(315,30,320,30);
label_ctx.lineTo(325, 30);
label_ctx.quadraticCurveTo(330,30,330,40);
label_ctx.quadraticCurveTo(330,30,335,30);
label_ctx.lineTo(340, 30);
label_ctx.quadraticCurveTo(345,30,345,10);
label_ctx.stroke();
</script>
</div>
<li class="sub">Inferred and labeled by kernel</li>
</ul>
</ul>
</section>
</div>
<div class="slide" id="slide_webapp">
<header>Isolate web apps</header>
<section>
<style>
#label1, #label2 {
visibility:hidden;
}
</style>
<div style="position:absolute; top:100px; left:70px">
<p class="center" style="position:absolute; left:-40px; top:20px">http://www.google.com</p>
<div class="untrusted" style="width:180px; height:180px; position:absolute; left:0px; top:80px;">
<div style="position:absolute; width:100%; top:35%">Web Page Instance</div>
<div id="label1" class="trusted" style="width:100px; height:40px; position:absolute; left:38px; top:137px; line-height:40px">google</div>