That is a neat take on "key strengthening", or "peppering": https://crypto.stackexchange.com/questions/20578/definition-of-pepper-in-hash-functions/20583#20583

That is a neat take on "key strengthening", or "peppering": https://crypto.stackexchange.com/questions/20578/definition-of-pepper-in-hash-functions/20583#20583 https://crypto.stackexchange.com/questions/20578/definition-...