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aesni.html
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<html lang="en">
<head>
<title>Square CTF 2019: aesni</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="shortcut icon" type="image/x-icon" href="/favicon.ico">
<meta name="og:title" content="Block CTF: hacking competition!">
<meta name="og:url" content="https://blockctf.com/">
<meta property="og:type" content="website">
<meta name="og:description" content="Compete to solve security-related challenges.">
<meta property="og:image" content="../og.png">
<meta name="twitter:card" content="summary">
<meta name="twitter:site" content="@BlockEng">
<meta name="twitter:title" content="Block CTF: We make security and hacking more approachable — since 2014.">
<meta name="twitter:description" content="Compete to solve security-related challenges.">
<meta name="twitter:image" content="../og.png">
<meta name="description" content="Compete to solve security-related challenges.">
<meta name="author" content="Block, Inc.">
<link rel="stylesheet" media="screen" href="../squarectf.css">
</head>
<body>
<div class="wideline begin">
<span>C2: AESNI(2019)</span>
<span><a href="../index.html"><img src="../sqlogo.svg"></a></span>
<span>C2: AESNI(2019)</span>
</div>
<h1>Name</h1>
<p>C2: Aesni</p>
<h1>Type</h1>
<p>Binary</p>
<h1>Points</h1>
<p>700 (+100)</p>
<h1>Description</h1>
<p>
After an hour of explaining to your roommate Sam the difference between a “Chromecast” and a random piece of
hardware that you should never plug in from outside, your throat gets a little dry. On the way to the kitchen, you
pass by your digital picture frame. They rotate through pictures of the family vacations you’ve taken: you and
your mom at Yosemite, you and your dad hiking in the Alps, you and your family on the Great Wall of China, and
just your aunt Matilda with a piña colada on a beach.
</p>
<p>
Wait a second. You don’t remember taking that last photo. You would have remembered that last one. How did your
aunt’s photo get on there? These picture frames run on SD cards, not WiFi, so the rogue Gromecast shouldn’t have
affected it.
</p>
<p>
“Hey, Sam. Did you touch the digital picture frames?”<br/>
“No, but can I have my Gromecast back? I want to watch The Leftovers. I hear that show was super underrated.”
</p>
<p>
That show was underrated, but now’s not the time. You ignore Sam and pop out the SD card from its digital picture
frame to have a look. Sure enough, next to all the photos you added is the new picture of your aunt on a beach
along with <a href="aesni.tar.gz">a binary</a> file.
</p>
<h1>See also</h1>
<p>
<a href="https://squ.re/2POCGUK">Work_at_Square(1)</a>,
<a href="https://squareup.com/legal/privacy">Privacy_policy(1)</a>,
<a href="https://blockctf.com/code_of_conduct.html">Code_of_conduct(1)</a>
</p>
<div class="wideline end">
<span>Block, Inc.</span>
<span>(c) <script>document.write(new Date().toLocaleString("en-us", {month: "long", year: "numeric"}));</script></span>
<span>C2: AESNI(2019)</span>
</div>
</body>
</html>