How to convert between openSSH and SSH2

How to convert between openSSH and SSH2

Convert OpenSSH key to SSH2 key

This must be done on the system running OpenSSH.

ssh-keygen -e -f ~/.ssh/id_dsa.pub > ~/.ssh/id_dsa_ssh2.pub

Convert SSH2 key to OpenSSH key

This needs to be done on the system running OpenSSH.

ssh-keygen -i -f ~/.ssh/id_dsa_1024_a.pub > ~/.ssh/id_dsa_1024_a_openssh.pub

Important: on out servers you have to use allways openSSH keys.