A Novel Anti-eavesdrop Communication Mechanism for NFC
Gai Lin · Radio Engineering · 2014
For the eavesdropping problems in the NFC communication,this paper proposes a novel anti-eavesdrop communication mechanism,which can reduce the eavesdropping probability of each bit. It requires that both sides of communication can synchronously send their signals,so their signals can be superposed in the channel,and the eavesdropper cannot correctly judge the data when one part sends 1 and the other sends 0,but both communicating parties can judge the signal by the superposed signal and their own sending signal. It can reduce eavesdropping probability of every bit to 75%. This method doesn't increase additional hardware cost. The hardware verification show that,in full duplex mode,the anti-eavesdrop capability of this communication mechanism accord with the theoretical value.