I'm using Yubico YubiKey Personalization Tool v3.1.21 and looking for the "Upload to Yubico" button on the "Program in Yubico OTP mode - Advanced" screen. If I use the "Quick" screen I see the button and it provides a straightforward way to upload this AES key. However, when I want to configure specific Public Identity, Private Identity, and Secret Key, after I write I still have not uploaded the AES key to the Yubico Authentication Servers, so the key will not verify yet.
My question is:
a) Was this feature omitted purposely?
b) How do I get the required fields from the Yubikey in order to fill in the form on
https://upload.yubico.com/ specifically the yubikey Internal identity and AES key?
Second question related to this, should I be able to register multiple yubikeys with the same public identity, private identity, and secret key?
Thanks