Mitos30

NFC and Mifare both of them work on 13.56Mhz. Both of them are based on 14443 ISO protocol. So what is the real and big difference between them?

how do a smart card and a reader to initiate ther first handshake? When we present a smart card for the first time to a reader how they begin to communicate? Do they exchange some keys or secrets ? I want...

glad to hear that

thanks a lot

in order to sign a document or a form with private key existing in a smart card, the chip must be with contact? the signature is not possible with contactless ones? I want to undertand the difference