【油管转载】How Does SHA-256 Work (SHA-256原理)

A step-by-step animated explanation of how SHA-256 works, from padding and message schedule to the compression function and final hash, with source code for the animations.

Why HN likes it: Commenters call it clear enough to implement the algorithm from, and teachers use it in courses.

“I found this video to be an excellent explanation and sufficient to implement the algorithm”