Duplication of encrypted fobs

I want to make spares of my various fobs. Some are simple, some have encryption.
Is the Flipper Zero suitable for duplicating these? Can it do encrypted fobs at all?

The fobs I want to copy are for my garage and my flat.


A subset of them, most notably Mifare Classic.
How do you know at all which are encrypted without first showing them to the dolphin?

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I know the one to my apartment is encrypted. Others have tried to copy theirs.

To copy encrypted fobs, do we need to connect it to our computers for extra processing power? I am very new to this.

It depends. Again, you know nothing specific before showing it to your dolphin. Then, open the docs and figure out what did it say.