Built a SHA-256 machine

So I was wondering if it will be possible to develop a machine without electricity which operates logic gates for a one turn of sha256 that can be 3d print like this curta machine (I expect a 128 turn will be to much hard). I saw a lot of videos on YouTube for making logic gates which are very cool btw (from lego to pneumatic ones using paper). This can be really time saver if we want for example generate a bitcoin address by hand which needs to do 3 times of 128 round of sha256 if I'm not mistaken.

submitted by /u/carniflore
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from Bitcoin - The Currency of the Internet https://ift.tt/3f70Rvi

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