about the openssl in the EAP-FAST

[why]

I have three questions:
1. Does hostap generate the PAC file by .pem file?
2. What kind of file can I use in the wpa_supplicant? I am confused about the "wpa_supplicant.eap-fast-pac" in the wpa_supplicant.conf.
3. If the client has a PAC file, does it affect the hostap and how should I change the hostap.conf?
Thank you!
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