id_rsa.pub file SSH Error: invalid format

Question

My co worker and I have been trying to get my macbook to ssh into our AWS production server with no luck, this did work several months ago, but when we went to do it yesterday -

Answer 1

The following permissions should be set:

Private keys should get rw for owner, none for group, none for others:

chmod 600 id_rsa

Public keys should get rw for owner, r for group, r for others:

chmod 644 id_rsa.pub