Trying to follow the instructions on github for Generating SSH Keys for windows.
ssh-keygen -t rsa -C "firstname.lastname@example.org"
Key is invalid. It must begin with 'ssh-rsa' or 'ssh-dss'. Check that you're copying the public half of the key
---- BEGIN SSH2 PUBLIC KEY ----
Comment: "2048-bit RSA, email@example.com"
---- END SSH2 PUBLIC KEY ----
Got it. The public key should look like this:
ssh-rsa *public key* firstname.lastname@example.org
ssh-rsa<space><public key ending with ==><space><email address>