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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://mastodon.social/users/simplex/statuses/113016930866081002">SimpleX Chat (simplex@mastodon.social)'s status on Sunday, 25-Aug-2024 01:06:57 JST</a><a href="https://mastodon.social/@simplex" title="simplex@mastodon.social"><img src="https://gnusocial.jp/avatar/178583-48-20240323225605.webp" width="48" height="48" alt="SimpleX Chat" style="position: absolute; left: 0; top: 0;">SimpleX Chat</a><div><a href="https://mastodon.social/@simplex/113016928181823733" rel="in-reply-to">in reply to</a></div></section><article><p>3. Cryptographic primitives:  Curve25519 / XSalsa20 256 / Poly1305 (downgraded for the absence of PQ encryption).</p><p>We added PQ encryption in March this year: <a href="https://simplex.chat/blog/20240314-simplex-chat-v5-6-quantum-resistance-signal-double-ratchet-algorithm.html" rel="nofollow noreferrer">https://simplex.chat/blog/20240314-simplex-chat-v5-6-quantum-resistance-signal-double-ratchet-algorithm.html</a></p><p>This is done in the same way as Apple describes as PQ3 here: <a href="https://security.apple.com/blog/imessage-pq3/" rel="nofollow noreferrer">https://security.apple.com/blog/imessage-pq3/</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/3563455#notice-6992940">In conversation</a><time datetime="2024-08-25T01:06:57+09:00" title="Sunday, 25-Aug-2024 01:06:57 JST">about 3 months ago</time> <span>from <span><a href="https://mastodon.social/@simplex/113016930866081002" rel="external" title="Sent from mastodon.social via ActivityPub">mastodon.social</a></span></span><a href="https://mastodon.social/@simplex/113016930866081002">permalink</a><h4>Attachments</h4><ol><li><article><header><div>Domain not in remote thumbnail source whitelist: security.apple.com</div><h5><a href="https://security.apple.com/blog/imessage-pq3/">Blog - iMessage with PQ3: The new state of the art in quantum-secure messaging at scale - Apple Security Research</a></h5><div></div></header><div>We are introducing PQ3, a groundbreaking cryptographic protocol for iMessage that advances the state of the art of end-to-end secure messaging. With compromise-resilient encryption and extensive defenses against even highly sophisticated quantum attacks, PQ3 provides protocol protections that surpass those in all other widely deployed messaging apps.</div><footer></footer></article></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/3079094">Untitled attachment</a></label><br></li></ol></footer></blockquote>

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SimpleX Chat (simplex@mastodon.social)'s status on Sunday, 25-Aug-2024 01:06:57 JST SimpleX Chat
in reply to
3. Cryptographic primitives: Curve25519 / XSalsa20 256 / Poly1305 (downgraded for the absence of PQ encryption).
We added PQ encryption in March this year: https://simplex.chat/blog/20240314-simplex-chat-v5-6-quantum-resistance-signal-double-ratchet-algorithm.html
This is done in the same way as Apple describes as PQ3 here: https://security.apple.com/blog/imessage-pq3/
In conversationabout 3 months ago from mastodon.socialpermalink
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1. Domain not in remote thumbnail source whitelist: security.apple.com
  Blog - iMessage with PQ3: The new state of the art in quantum-secure messaging at scale - Apple Security Research
  We are introducing PQ3, a groundbreaking cryptographic protocol for iMessage that advances the state of the art of end-to-end secure messaging. With compromise-resilient encryption and extensive defenses against even highly sophisticated quantum attacks, PQ3 provides protocol protections that surpass those in all other widely deployed messaging apps.
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