/tags/encryption/ Recent content in Encryption on An Untitled Blog Hugo -- gohugo.io en-us Sun, 19 Nov 2023 00:00:00 +0000 /posts/2023-11-19_signal-cons/ Sun, 19 Nov 2023 00:00:00 +0000 /posts/2023-11-19_signal-cons/ <p><em>Update 11/25: I was made aware that Signal has some proprietary anti-spam code and added the TLDR.</em></p> <details> <summary><strong>A More Technical TLDR</strong></summary> <p>I never know how much jargon I should include or how much I should explain, and as long as I&rsquo;m writing I&rsquo;m enjoying myself meaning I&rsquo;ve been all over the place. But here&rsquo;s a shortened version for those familiar with encryption.</p> <p>A vanilla implementation of the Signal protocol relies on public key infrastructure to perform a handshake between devices. As you may know, a public key server can certify that any device/key belongs to an account if you have nothing more to go on than a phone number. Furthermore, at any point the server may say keys have changed and direct you to start communicating with a device other than the one you expect.</p>