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@freed2003
freed2003 committed Nov 27, 2024
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2 changes: 1 addition & 1 deletion assets/jupyter/blog.ipynb.html
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2 changes: 1 addition & 1 deletion blog/index.html
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2 changes: 1 addition & 1 deletion feed.xml
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<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en"><generator uri="https://jekyllrb.com/" version="4.3.4">Jekyll</generator><link href="https://freed2003.github.io/feed.xml" rel="self" type="application/atom+xml"/><link href="https://freed2003.github.io/" rel="alternate" type="text/html" hreflang="en"/><updated>2024-11-25T10:46:39+00:00</updated><id>https://freed2003.github.io/feed.xml</id><title type="html">blank</title><subtitle>My personal website &amp; blog! </subtitle><entry><title type="html">SECCON Quals 2024 Dual Summoners</title><link href="https://freed2003.github.io/blog/2024/dualsummoners/" rel="alternate" type="text/html" title="SECCON Quals 2024 Dual Summoners"/><published>2024-11-23T15:09:00+00:00</published><updated>2024-11-23T15:09:00+00:00</updated><id>https://freed2003.github.io/blog/2024/dualsummoners</id><content type="html" xml:base="https://freed2003.github.io/blog/2024/dualsummoners/"><![CDATA[<p>The two summoners in the name refer to two instances of AES-GCM, each with a different key. The interesting thing here is that they both use the same nonce, which is clearly an issue since the word nonce means “number only used once”. The code we are given is the following</p> <div class="language-python highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kn">from</span> <span class="n">Crypto.Cipher</span> <span class="kn">import</span> <span class="n">AES</span>
<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en"><generator uri="https://jekyllrb.com/" version="4.3.4">Jekyll</generator><link href="https://freed2003.github.io/feed.xml" rel="self" type="application/atom+xml"/><link href="https://freed2003.github.io/" rel="alternate" type="text/html" hreflang="en"/><updated>2024-11-27T03:49:40+00:00</updated><id>https://freed2003.github.io/feed.xml</id><title type="html">blank</title><subtitle>My personal website &amp; blog! </subtitle><entry><title type="html">SECCON Quals 2024 Dual Summoners</title><link href="https://freed2003.github.io/blog/2024/dualsummoners/" rel="alternate" type="text/html" title="SECCON Quals 2024 Dual Summoners"/><published>2024-11-23T15:09:00+00:00</published><updated>2024-11-23T15:09:00+00:00</updated><id>https://freed2003.github.io/blog/2024/dualsummoners</id><content type="html" xml:base="https://freed2003.github.io/blog/2024/dualsummoners/"><![CDATA[<p>The two summoners in the name refer to two instances of AES-GCM, each with a different key. The interesting thing here is that they both use the same nonce, which is clearly an issue since the word nonce means “number only used once”. The code we are given is the following</p> <div class="language-python highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kn">from</span> <span class="n">Crypto.Cipher</span> <span class="kn">import</span> <span class="n">AES</span>
<span class="kn">import</span> <span class="n">secrets</span>
<span class="kn">import</span> <span class="n">os</span>
<span class="kn">import</span> <span class="n">signal</span>
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2 changes: 1 addition & 1 deletion sitemap.xml
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<?xml version="1.0" encoding="UTF-8"?> <urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"> <url> <loc>https://freed2003.github.io/news/announcement_1/</loc> <lastmod>2015-10-22T19:59:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/news/announcement_2/</loc> <lastmod>2015-11-07T20:11:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/news/announcement_3/</loc> <lastmod>2016-01-15T11:59:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/blog/2023/twinprime/</loc> <lastmod>2023-10-03T15:09:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/blog/2023/enCRCroach/</loc> <lastmod>2023-10-03T15:09:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/blog/2024/quadprime/</loc> <lastmod>2024-03-01T15:09:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/blog/2024/dualsummoners/</loc> <lastmod>2024-11-23T15:09:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/projects/sTLS/</loc> <lastmod>2024-11-25T10:46:39+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/</loc> </url> <url> <loc>https://freed2003.github.io/cv/</loc> </url> <url> <loc>https://freed2003.github.io/news/</loc> </url> <url> <loc>https://freed2003.github.io/projects/</loc> </url> <url> <loc>https://freed2003.github.io/publications/</loc> </url> <url> <loc>https://freed2003.github.io/blog/tag/crypto/</loc> </url> <url> <loc>https://freed2003.github.io/blog/category/ctf-writeups/</loc> </url> <url> <loc>https://freed2003.github.io/blog/2023/</loc> </url> <url> <loc>https://freed2003.github.io/blog/2024/</loc> </url> <url> <loc>https://freed2003.github.io/blog/</loc> </url> </urlset>
<?xml version="1.0" encoding="UTF-8"?> <urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"> <url> <loc>https://freed2003.github.io/news/announcement_1/</loc> <lastmod>2015-10-22T19:59:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/news/announcement_2/</loc> <lastmod>2015-11-07T20:11:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/news/announcement_3/</loc> <lastmod>2016-01-15T11:59:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/blog/2023/twinprime/</loc> <lastmod>2023-10-03T15:09:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/blog/2023/enCRCroach/</loc> <lastmod>2023-10-03T15:09:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/blog/2024/quadprime/</loc> <lastmod>2024-03-01T15:09:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/blog/2024/dualsummoners/</loc> <lastmod>2024-11-23T15:09:00+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/projects/sTLS/</loc> <lastmod>2024-11-27T03:49:40+00:00</lastmod> </url> <url> <loc>https://freed2003.github.io/</loc> </url> <url> <loc>https://freed2003.github.io/cv/</loc> </url> <url> <loc>https://freed2003.github.io/news/</loc> </url> <url> <loc>https://freed2003.github.io/projects/</loc> </url> <url> <loc>https://freed2003.github.io/publications/</loc> </url> <url> <loc>https://freed2003.github.io/blog/tag/crypto/</loc> </url> <url> <loc>https://freed2003.github.io/blog/category/ctf-writeups/</loc> </url> <url> <loc>https://freed2003.github.io/blog/2023/</loc> </url> <url> <loc>https://freed2003.github.io/blog/2024/</loc> </url> <url> <loc>https://freed2003.github.io/blog/</loc> </url> </urlset>

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