Wavelet: Code-based postquantum signatures with fast verification on microcontrollers
Cryptography and Security
2021-10-27 v1
Abstract
This work presents the first full implementation of Wave, a postquantum code-based signature scheme. We define Wavelet, a concrete Wave scheme at the 128-bit classical security level (or NIST postquantum security Level 1) equipped with a fast verification algorithm targeting embedded devices. Wavelet offers 930-byte signatures, with a public key of 3161 kB. We include implementation details using AVX instructions, and on ARM Cortex-M4, including a solution to deal with Wavelet's large public keys, which do not fit in the SRAM of a typical embedded device. Our verification algorithm is faster then the original, and verifies in 1 087 538 cycles using AVX instructions, or 13 172 ticks in an ARM Cortex-M4.
Keywords
Cite
@article{arxiv.2110.13488,
title = {Wavelet: Code-based postquantum signatures with fast verification on microcontrollers},
author = {Gustavo Banegas and Thomas Debris-Alazard and Milena Nedeljković and Benjamin Smith},
journal= {arXiv preprint arXiv:2110.13488},
year = {2021}
}