https://code.queer.soy/blog/tor/ Recent content in Tor on Queer Soy Code Hugo en Thu, 18 Jun 2026 12:11:29 +0200 https://code.queer.soy/migrating-an-onion-service-key-from-arti-to-c-tor/ Thu, 18 Jun 2026 12:11:29 +0200 https://code.queer.soy/migrating-an-onion-service-key-from-arti-to-c-tor/ <p>I started an onion service <a href="https://onionservices.torproject.org/apps/base/containers/howto/#docker-compose-or-podman-compose">using arti</a> and exposed it, but then I realized that arti is too experimental and wanted to move to C tor. According to <a href="https://onionservices.torproject.org/dev/implementations/#from-arti-to-c-tor">this page</a> they don&rsquo;t plan to offer support to migrate from arti keys to C tor ones, so I had to do it manually.</p> <p>Extract the key:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1</span><span>docker compose exec arti cat /home/arti/.local/share/arti/keystore/hss/onimages/ks_hs_id.ed25519_expanded_private &gt; hs </span></span></code></pre></div><p>Decode it:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1</span><span>grep -v <span style="color:#e6db74">&#39;^-&#39;</span> hs | tr -d <span style="color:#e6db74">&#39;\n&#39;</span> | base64 -d &gt; hs_decoded </span></span></code></pre></div><p>Hex it for a manual split:</p>