user52835: Is there any source that visualizes how SHA-2 works (including internals) with animated video or an interactive web page?

user102918: Check out CrypTool 2 (CT2). It is an open-source program offering an innovative visual programming GUI to experiment with cryptographic procedures and to animate their cascades.

user2306: This shows an animation of the steps involved in computing a SHA2 hash.
https://youtu.be/FZeLKrQTZtE?t=84
I can't find a diagram of message expansion, but this shows a diagram of one round (SHA256 has 64 rounds):
https://en.wikipedia.org/wiki/SHA-2#/media/File:SHA-2.svg

user105996: you can check this repo, iti si creedt for Cryptography For Developers, Simon Johnson (pg. 218):
https://github.com/in3rsha/sha256-animation

52835: <p>Is there any source that visualizes how SHA-2 works (including internals) with animated video or an interactive web page?</p>
 102918: <p>Check out <a href="https://www.cryptool.org/en/ct2/downloads" rel="nofollow noreferrer">CrypTool 2</a> (CT2). It is an open-source program offering an innovative visual programming GUI to experiment with cryptographic procedures and to animate their cascades.</p>
 2306: <p>This shows an animation of the steps involved in computing a SHA2 hash.</p>

<p><a href="https://youtu.be/FZeLKrQTZtE?t=84" rel="nofollow noreferrer">https://youtu.be/FZeLKrQTZtE?t=84</a></p>

<p>I can't find a diagram of message expansion, but this shows a diagram of one round (SHA256 has 64 rounds):</p>

<p><a href="https://en.wikipedia.org/wiki/SHA-2#/media/File:SHA-2.svg" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/SHA-2#/media/File:SHA-2.svg</a></p>
 105996: <p>you can check this repo, iti si creedt for <strong>Cryptography For Developers, Simon Johnson (pg. 218)</strong>:
<a href="https://github.com/in3rsha/sha256-animation" rel="nofollow noreferrer">https://github.com/in3rsha/sha256-animation</a></p>
