What if nfc encounters an encryption card?

Nfc can only copy encrypted cards, but can't crack them.

As long as the access card is encrypted, it can be copied when looking for a property. After all, they made the access control system and the card. You can also find someone with a professional key to copy. If you don't want to go to the property, or don't copy the property, then the simplest and most effective way is to find a professional key distribution point, of course, it must be a relatively large key distribution point.

In places where keys are professionally distributed, they have professional software, which is installed in notebooks, and then the encrypted access cards are copied through card readers. With this professional tool and software, the encrypted access card that we find difficult to copy can be completed in less than 1 minute.

What are the functions of nfc?

Nfc function is a near-field communication function, and all devices using nfc technology have the near-field communication function. Nfc means near field communication, which is short for near field communication. Devices using nfc technology can exchange data when they are close to each other.

Nfc is developed from the integration of contactless radio frequency identification (RFID) and internet technology. By integrating the functions of sensor card reader, sensor card and point-to-point communication on one chip, mobile payment, electronic ticketing, access control, mobile identity recognition, anti-counterfeiting and other applications can be realized by using mobile terminals.