Efficient Low-Latency Masking of Ascon without Fresh Randomness

ePrint Report: Efficient Low-Latency Masking of Ascon without Fresh Randomness

Srinidhi Hari Prasad, Florian Mendel, Martin Schläffer, Rishub Nagpal

In this work, we present the first low-latency, second-order masked hardware implementation of Ascon that requires no fresh randomness using only $d+1$ shares. Our results significantly outperform any publicly known second-order masked implementations of AES and Ascon in terms of combined area, latency and randomness requirements. Ascon is a family of lightweight authenticated encryption and hashing schemes selected by NIST for …

ascon eprint report hardware implementation latency low masking order randomness report results second-order work