As a minor nit, most salted password hash algorithms store the salt at the start (usually) or end (occasionally) of the hash, so you don't need a separate colum

As a minor nit, most salted password hash algorithms store the salt at the start (usually) or end (occasionally) of the hash, so you don't need a separate column. You end up with two functions: one to generate a new password hash (which securely generates a salt as well), and one to compare a plain-text password with the (salt+hash).