Any ethers/cryptography expert?

How bad is that code?

https://gist.github.com/julien51/b72db711bda3e940afbe77c96d7d727d


I am trying to generate a private key consistently from a secret... (Complicated secret with upper/lower case numbers and symbols!)

Unlock Protocol founder.
Previously founder at Superfeedr (RSS push API) acquired by Medium!

https://ouvre-boite.com

Bad. I recall live demos of “brain wallets” being drained of BTC in like 2014, I’m sure it’s worse now. At least use significant key-stretching with scrypt. Check out: https://en.bitcoin.it/wiki/Brainwallet#Obsolete_Brainwallet_Style

Thanks Richard! 
It's fire something like this though: https://unlock-protocol.com/blog/password-required-hook do not meant to store value, but just a way to ensure onchain that someone knows of a secret.