Diving deeper in the rabbit hole of hashcat, hash extracting, crypto and decrypting

[monyanus]

Thanks @Chick3nman. I will remember for the next time when I need to go technical to find a solution. When I wrote the post, it turned out the project I was working on did not have a MAC but only an public-key to check if the entered password was correct. EC is not something hashcat/GPU can handle as far as I understand. I ended up solving it with custom code on the CPU.