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| author | jaseg <git@jaseg.de> | 2023-03-19 18:58:10 +0100 |
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| committer | jaseg <git@jaseg.de> | 2023-03-19 18:58:10 +0100 |
| commit | 1cf2411d4e021c010a3ddbb01764776db254c92a (patch) | |
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diff --git a/blog/ihsm-worlds-first-diy-hsm/index.html b/blog/ihsm-worlds-first-diy-hsm/index.html new file mode 100644 index 0000000..db95329 --- /dev/null +++ b/blog/ihsm-worlds-first-diy-hsm/index.html @@ -0,0 +1,70 @@ +<!DOCTYPE html> +<html><head> + <meta charset="utf-8"> + <title>New Paper on Inertial Hardware Security Modules | Home</title> + <meta name="description" content=""> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="mobile-web-app-capable" content="yes"> + <meta name="color-scheme" content="dark light"> + <link rel="stylesheet" href="/style.css"> +</head> +<body><nav> + + <a href="/" title="Home">Home</a> + <a href="/blog/" title="Blog">Blog</a> + <a href="/projects/" title="Projects">Projects</a> + <a href="/about/" title="About">About</a> + <span class="spacer"></span> + <a href="https://git.jaseg.de/" title="cgit">cgit</a> + <a href="https://github.com/jaseg" title="Github">Github</a> + <a href="https://gitlab.com/neinseg" title="Gitlab">Gitlab</a> + <a href="https://chaos.social/jaseg" title="Mastodon">Mastodon</a> +</nav> + + <header> + <h1>New Paper on Inertial Hardware Security Modules</h1> +<ul class="breadcrumbs"> + <li><a href="/">jaseg.de</a></li> + <li><a href="/blog/">Blog</a></li><li><a href="/blog/ihsm-worlds-first-diy-hsm/">New Paper on Inertial Hardware Security Modules</a></li> +</ul> + <strong>2021-11-23</strong> + </header> + <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="http://jaseg.de/blog/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> + Copyright © 2023 Jan Sebastian Götte + / <a href="/about/">About</a> + / <a href="/imprint/">Imprint</a> +</footer> +</body> +</html> |