[Suggestion] Add ECC certificates to free certificates

[Michal-Koeckeis-Fresel]

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What would you like to be added or improved?

Add the option to obtain an ECC-384 certificate for the free certs.

Why is it needed?

Currently the only certificate type is RSA.

Please add a drop-down-list with the option to use ECC-384 certificates. https://en.wikipedia.org/wiki/Elliptic-curve_cryptography

Performance of ECC certificates is much better compared to high grade RSA keys.