Resolving an Invalid Key Length Error
To help keep your site secure, we require a 2048 bit key length.
If you receive an Invalid Key Length error when you submit your certificate signing request (CSR) during your SSL application, re-generate your CSR using at least 2048 bit key length and resubmit your request.
If you need help generating a 2048 bit key length, see Generating a Certificate Signing Request.