SSH prompting for password even after generating the RSA keys with empty password

I struggled with this issue almost every time I wanted to login to remote hosts without entering the passwords. In some places, I used this solution because I was lazy and in some places it is a requirement such as, Hadoop setup. Anyways, the key to the solution is permissions and the steps are as under:

{USER}@machine1> rm -rf /home/{USER}/.ssh
{USER}@machine2> rm -rf /home/{USER}/.ssh /tmp/id_rsa.pub
{USER}@machine1> ssh-keygen -t rsa [Enter, Enter, Enter]
{USER}@machine1> scp /home/{USER}/.ssh/id_rsa.pub {USER}@machine2:/tmp
{USER}@machine2> mkdir /home/{USER}/.ssh
{USER}@machine2> cat /tmp/id_rsa.pub >> /home/{USER}/.ssh/authorized_keys
{USER}@machine2> chmod -R 700 /home/{USER}/.ssh
{USER}@machine1> chmod 600 /home/{USER}/.ssh/id_rsa*
{USER}@machine2> rm /tmp/id_rsa.pub
{USER}@machine1> chmod 755 /home/{USER}
{USER}@machine2> chmod 755 /home/{USER}

In above steps, replace the {USER} with your user and machine1 and machine2 with appropriate machine ip addresses.h

Please note, the steps marked in BOLD and they should have exactly the same permissions.