Fast Embedded Software Hashing
Dag Arne Osvik · 2012
Abstract. We present new software speed records for several popular hash functions on low-end 8-bit AVR microcontrollers. Target algorithms include widely deployed hash functions like SHA-1 and SHA-256 as well as the SHA-3 (second round) candidates Blake-32 and Skein-256. A significant aspect of our implementations is that they reduce the overall resource requirements, improving not only execution time but also RAM footprint and sometimes ROM/Flash memory footprint at the same time, providing the best memory/performance trade-offs reported so far. We believe that our results will shed new light on the ongoing SHA-3 competition, and be helpful for the final stage of the competition. 1