06. Oct, 2008

SSH Public-Key Authentication with PuTTY

PuTTY is available from http://blog.manhnd.com/download/

Generate a public/private key pair

Run puttygen.exe and generate an SSH2 public/private key pair. Save these as manhnd.pub and manhnd.ppk

Install the public key on a remote host with OpenSSH

Copy the public key to ~/.ssh/manhnd.pub on the remote host using any file-transfer program.

On the remote host, convert the public key to OpenSSH format:
remote-host$ ssh-keygen -i -f ~/.ssh/manhnd.pub > ~/.ssh/manhndkey.pub
On the remote host, paste the contents of the public key in ~/.ssh/authorized_keys
remote-host$ cat ~/.ssh/manhndkey.pub >> ~/.ssh/authorized_keys