Low power implementation of hummingbird cryptographic algorithm for RFID tag

Hummingbird algorithm is a newly proposed lightweight cryptographic algorithm targeted for low-cost RFID tag. In this paper, we present a hardware implementation of this algorithm using SMIC0.13 μm CMOS process. Methods are used to reduce the unnecessary clock toggling and data toggling to reduce dynamic power. Simulation results show that the total area of our design is 14,735 μm². It requires 16 clock cycles to encrypt 16-bit data (an additional 69 clock cycles for initialization is needed), and consumes 1.08 μw power for 1.2 V power supply at 100 KHz.