&gt; The author concludes by asking for feedback on the idea. It would be difficult to get that from anyone, let alone people with actual expertise in cryptography, without writing a blog post...<p>Wat? It&#x27;s trivial: <a href="https:&#x2F;&#x2F;lists.riseup.net&#x2F;www&#x2F;info&#x2F;whispersystems" rel="nofollow">https:&#x2F;&#x2F;lists.riseup.net&#x2F;www&#x2F;info&#x2F;whispersystems</a>