How you can take an OpenVPN .ovpn config file and extract the certificates/keys

  • Copy from between <ca> tags into ca.crt, remove <ca> tags from original file.
  • Copy from between <cert> tags into client.crt, remove <cert> tags.
  • Copy from between <key> tags into client.key, remove <key> tags.
  • Copy from between <tls-auth> tags into ta.key, remove <tls-auth> tags.
  • Remove the line “key-direction 1”
  • Above "# -----BEGIN RSA SIGNATURE-----" insert the following lines.
    ca ca.crt
    cert client.crt
    key client.key
    tls-auth ta.key 1

Done.

Source: here