Hummingbird: Ultra-Lightweight Cryptography for Resource-Constrained Devices

Due to the tight cost and constrained resources of high-volume consumer devices such as RFID tags, smart cards and wireless sensor nodes, it is desirable to employ lightweight and specialized cryptographic primitives for many security applications. Motivated by the design of the well-known Enigma machine, we present a novel ultra-lightweight cryptographic algorithm, referred to as

Hummingbird

, for resource-constrained devices in this paper.

Hummingbird

can provide the designed security with small block size and is resistant to the most common attacks such as linear and differential cryptanalysis. Furthermore, we also present efficient software implementation of

Hummingbird

on the 8-bit microcontroller

ATmega128L

from Atmel and the 16-bit microcontroller

MSP430

from Texas Instruments, respectively. Our experimental results show that after a system initialization phase

Hummingbird

can achieve up to 147 and 4.7 times faster throughput for a size-optimized and a speed-optimized implementations, respectively, when compared to the state-of-the-art ultra-lightweight block cipher

PRESENT

[10] on the similar platforms.