Daniel Marks<p>I made a <a href="https://mastodon.social/tags/diy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>diy</span></a> <a href="https://mastodon.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>electronics</span></a> standalone <a href="https://mastodon.social/tags/cryptography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cryptography</span></a> <a href="https://mastodon.social/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cybersecurity</span></a> device the ParanoiaBox. It is an experiment with a minimal attack surface as it is a <a href="https://mastodon.social/tags/microcontroller" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>microcontroller</span></a>, keyboard, television, with no operating system intended for <a href="https://mastodon.social/tags/encryption" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>encryption</span></a> and decryption of files between an insecure air-gapped computer and the internet. It uses AES256 and ECDH EC25519 public-key encryption to enable <a href="https://mastodon.social/tags/secret" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>secret</span></a> <a href="https://mastodon.social/tags/communications" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>communications</span></a>. Files are encrypted into text so they may be easily E-mailed or posted on forums.</p>