Function fs_verity::new_dyn_with_salt_and_block_size

pub fn new_dyn_with_salt_and_block_size<S: AsRef<[u8]> + Clone + Default + 'static>(
    inner_hash: InnerHashAlgorithm,
    salt: S,
    block_size: usize
) -> Box<dyn DynFsVerityDigest>

Like FsVerityDigest::new_with_salt_and_block_size, but you can choose the hash algorithm at runtime.

Please check the linked function for additional notes about specifying a salt and block size.