[aleunix]

Questions about encrypt local passwords

I would like know which encryption method is used by 'auto'.

Encrypt local passwords using method of encryption as described in login.conf(5).
If method is ``auto'', the encryption type will be derived from the user's login class.

man 5 login.conf
Default allowed authentication styles:
auth-defaults:auth=password,skey

Does is means that by default passwords local stores using the system s / key ?

Which algorithm is used by system s/key the md4 or the md5?

Note:
For the moment I am using qemu for getting comfortable with openbsd.