As someone not in the know about cryptography, I know just enought that the words "custom cryptography" scare the hell out of me.
It's time to get over the "never roll your own crypto!" bs.
AI can roll you crypto far better than what humans have built by hand. They can literally test things to an extent that no human ever would.
I'm not clear why someone would roll their own crypto. There are so many good solutions out there that are free that it seems pointless.
I keep hearing about post-quantum being an issue though.