Function pwhash::sha512_crypt::hash_with

pub fn hash_with<'a, IHS, B>(param: IHS, pass: B) -> Result<String> where
    IHS: IntoHashSetup<'a>,
    B: AsRef<[u8]>, 

Hash a password with user-provided parameters.

If the param argument is a &str, it must be in the final hash format. The number of rounds and the salt are parsed out of that value. If the salt is too long, it is truncated to maximum length. If it contains an invalid character, an error is returned. An out-of-range rounds value will be coerced into the allowed range.