I am working on an application hosted on Heroku that communicates with an apple system that requires SSL certificates to be in place. Apple requires that an ECC certificate be used where Heroku does not support ECC certificates - only RSA.
I am curious to know if I can generate my signing request with an ECC signature and use this to generate the certificate from apple but then convert this ECC key to an RSA key so that Heroku can still interpret this.
Do I have a drastic misunderstanding of how these two certificates are implemented that means this approach is not possible or do I just need to do the right openSSL commands to the cert to generate the key formats I need?