https://piggybird.net/2016/11/hack-vote-2016-write-trump-trump-crypto-100/

or

https://github.com/duc-le/ctf-writeups/blob/master/2016_Hack_The_Vote/crypto/100_Trump_Trump/writeup...

Original writeup (https://piggybird.net/2016/11/hack-vote-2016-write-trump-trump-crypto-100/).