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| author | jaseg <git@jaseg.de> | 2021-11-25 11:54:57 +0100 |
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| committer | jaseg <git@jaseg.de> | 2021-11-25 11:54:57 +0100 |
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diff --git a/posts/ihsm-worlds-first-diy-hsm/index.html b/posts/ihsm-worlds-first-diy-hsm/index.html new file mode 100644 index 0000000..cab2088 --- /dev/null +++ b/posts/ihsm-worlds-first-diy-hsm/index.html @@ -0,0 +1,124 @@ +<!DOCTYPE html> +<html lang="en-us"> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <title>New Paper on Inertial Hardware Security Modules | blog.jaseg.de</title> + <link rel="stylesheet" href="/css/style.css" /> + <link rel="stylesheet" href="/css/fonts.css" /> + + <header> + + + <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/atom-one-light.min.css"> + <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js"></script> + <script>hljs.initHighlightingOnLoad();</script> + <nav> + <ul> + + + <li class="pull-left "> + <a href="https://blog.jaseg.de/">/home/blog.jaseg.de</a> + </li> + + + + + </ul> + </nav> +</header> + + </head> + + <body> + <br/> + +<div class="article-meta"> +<h1><span class="title">New Paper on Inertial Hardware Security Modules</span></h1> + +<h2 class="date">2021/11/23</h2> +<p class="terms"> + + + + + +</p> +</div> + + + +<main> +<div class="document" id="world-s-first-diy-hsm"> +<h1 class="title">World's First DIY HSM</h1> + +<p>Last week, Prof. Dr. Björn Scheuermann and I have <a class="reference external" href="https://tches.iacr.org/index.php/TCHES/article/view/9290">published our first joint paper on Hardware Security Modules</a>. In our paper, we introduce Inertial Hardware Security +Modules (IHSMs), a new way of building high-security HSMs from basic components. I think the technology we demonstrate +in our paper might allow some neat applications where some civil organization deploys a service that no one, not even +they themselves, can snoop on. Anyone can built an IHSM without needing any fancy equipment, which makes me optimistic +that maybe the ideas of the <a class="reference external" href="https://www.activism.net/cypherpunk/manifesto.html">Cypherpunk movement</a> aren't obsolete +after all, despite even the word "crypto" having been co-opted by radical capitalist environmental destructionists.</p> +<p>An IHSM is basically an ultra-secure enclosure for something like a server or a raspberry pi that even someone with +unlimited resources would have a really hard time cracking without destroying all data stored in it. The principle of an +IHSM is the same as that of a <a class="reference external" href="https://blog.jaseg.de/posts/hsm-basics/">normal HSM</a>. You have a payload that contains really secret data. There's really no way +to prevent an attacker with physical access to the thing from opening it given enough time and abrasive discs for their +angle grinder. So what you do instead is that you make it self-destruct its secrets within microseconds of anyone +tampering with it. Usually, such HSMs are used for storing credit card pins and other financial data. They're expensive +as fuck, all the while being about the same processing speed as a smartphone. Traditional HSMs use printed or +lithographically patterned conductive foils for their security mesh. These foils are not an off-the-shelf component and +are made in a completely custom manufacturing process. To create your own, you would have to re-engineer that entire +process and probably spend some serious money on production machines.</p> +<p>Inertial HSMs take the concept of traditional HSMs, but replace the usual tamper detection mesh with a few security mesh +PCBs. These PCBs are coarser than traditional meshes by orders of magnitude, and would alone not even be close to enough +to keep out even a moderately motivated attacker. IHSMs fix this issue by spinning the entire tamper detection mesh at +very high speed. To tamper with the mesh, an attacker would have to stop it. This, in turn, can be easily detected by +the mesh's alarm circuitry using a simple accelerometer as a rotation sensor.</p> +<p>In our paper, we have shown a working prototype of the core concepts one needs to build such an IHSM. To build an IHSM +you only need a basic electronics lab. I built the prototype in our paper at home during one of Germany's COVID +lockdowns. You can have a look at our code and CAD on <a class="reference external" href="https://git.jaseg.de/ihsm.git">my git</a>. What is missing right +now is an integration of all of these fragments into something cohesive that an interested person with the right tools +could go out and build. We are planning to release this sort of documentation at some point, but right now we are +focusing our effort on the next iteration of the design instead. Stay tuned for updates ;)</p> +</div> +</main> + + <footer> + +<script> +(function() { + function center_el(tagName) { + var tags = document.getElementsByTagName(tagName), i, tag; + for (i = 0; i < tags.length; i++) { + tag = tags[i]; + var parent = tag.parentElement; + + if (parent.childNodes.length === 1) { + + if (parent.nodeName === 'A') { + parent = parent.parentElement; + if (parent.childNodes.length != 1) continue; + } + if (parent.nodeName === 'P') parent.style.textAlign = 'center'; + } + } + } + var tagNames = ['img', 'embed', 'object']; + for (var i = 0; i < tagNames.length; i++) { + center_el(tagNames[i]); + } +})(); +</script> + + + <div id="license-info"> + ©2020 by Jan Götte. This work is licensed under + <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/">CC-BY-NC-SA 4.0</a>. + </div> + <div id="imprint-info"> + <a href="/imprint">Impressum und Haftungsausschluss und Datenschutzerklärung</a>.<br/> + <a href="/about">About this blog</a>. + </div> + </footer> + </body> +</html> + |