> [!tldr] Same idea, but RFID uses radio waves, NFC uses magnetic fields Radio Frequency Identification and Near-Field Communication are two very similar pieces of technology. The key difference is the distance at which they operate, which is why they were separately designed. Near Field Communication uses **magnetic fields** to induce current on an inductive wire coil, which powers the chip to do its thing. Radio Frequency Identification uses radio waves to induce that current. ...and they both do full-blown [[Public Key Encryption]] ON THE CARD... AND a Shared Key Encryption as well, as a separate thing, which is [[Hash Table|hashed]]. **** # More ## Source - https://youtu.be/YSJY3DvnybE?si=I8UoNDk2jtzwYNqD