how to log into your iPhone using the root resp. the mobile account with a well-known password

This article on h-online.com helped me to log into my iPhone via ssh for the very first time. Find the instructions especially here! I used it for changing those passwords immediately, and I also created a ~/.ssh/authorized_keys2 for user mobile. Creating one for user root did not work, even “$ man sshd_config” did not help me, I still have to log in using a password.