The main problem of RFID technology has been security since they came out. Making an encrypted communication between RFID and RFID’s reader was too much power expensive for a single chip. RFID keeps its own power from electromagnetism spread by readers and uses it to make some easy computation. The available power is not enough to compute heavy counts , the chip may reboot before all operations ended. An important point to make this technology useful for our future it’s making a safe communication between chip and reader, in such way the hypothetical attacker cannot modify the RFID data. Doing that means developing a software able to perform heavy calculus using few operations, saving power.
Kevin Fu, assistant professor at University of Massachusetts Amherst, wrote the ground to make it possible.
Today I suggest this reading