sha-256-js

The wikipedia article spells it out pretty clearly, and the pseudo-code is easily translated into any language, here it is in JavaScript if anyone is interested: sha-256: https://github.com/jeffallen6767/sha-256-js/blob/master/src/... Once you understand the concept that most of these algos are simply dividing the input into computer-friendly sized blocks and then stacking and manipulating these bits in 3d space like a rubics cube, then the whole thing becomes a bit easier to understand. Here's a few more for comparison: sha-1: https://github.com/jeffallen6767/sha-1-js/blob/master/src/sh... md5: https://github.com/jeffallen6767/md5-js/blob/master/src/md5.... keccak: https://github.com/jeffallen6767/keccak-p-js/blob/master/src... side note, I also ended-up implementing the keccak algo in c for open cl usage, because I wanted to see if I co

As an aside, I coded a Keccak implementation in JavaScript if anyone is interested. It was a great learning experience, and I've tried to comment the code thoroughly. https://github.com/jeffallen6767/keccak-p-js/blob/master/src... Previous to this I did sha256, and I have to say that the Keccak algorithm was a bit easier to reason about ( as to what it was doing at the bit level, and why )...at least it was for me. https://github.com/jeffallen6767/sha-256-js/blob/master/src/...

I've been learning as much as I can about blockchain, crypto, etc... I've recently written sha256 and keccak in Javascript ( so as to learn how they work at a detailed level ). https://github.com/jeffallen6767/sha-256-js and https://github.com/jeffallen6767/keccak-p-js