How to copy one NFC card to another?

Question

NFC

Hello! NXP MIFARE Classic building pass 1k, ISO-14443-3A standard. I found the keys to all sectors of this map, so all the information from it is. There is also a troika card of the same type and standard, but there are access keys for only half of the sectors. So, is it possible to somehow completely copy the first card to the top three, or is it still necessary to buy clean NFC tags? Interested in the possibility of writing to sectors for which there are no keys.
Sorry for a possibly stupid question, I've only been on this thread for a few hours and still haven't figured it out.

Answer 1

Depends on what is in the first card. If to identify your pass in the ACS system, data from sectors that are empty on the triple is used, then you can transfer one to another if the UID of the card is used for this, then it is impossible, because the triple has a different UID. In this case, it remains only to ask people from the ACS system to encode your triple into the base. You can’t transfer the triple to a pass either, since a checksum is used to use the triple, which includes the UID of the card, so your wallet will not work on another card, since it has a different UID. For reference, I’ll leave empty sectors in the top three:
1,5,9,10,11,12,13,14,15, possibly 6, 3, and probably the 2nd sector can be donated, since as far as I remember, it is responsible for the CPPK, so if you do not use the services CPPK through a triple, then we can write