Paper 2025/1239 Original: eprint.iacr.org/2025/1239 ↗
Improved (Again) Key Pair Generation for Falcon, BAT and Hawk
Abstract
In this short note, we describe some further improvements to the key pair generation process for the Falcon and Hawk lattice-based signature schemes, and for the BAT key encapsulation scheme, in a fully constant-time way and without any use of floating-point operations. Our new code is slightly faster than our previous implementation, and, more importantly for small embedded systems, uses less RAM space.
Metadata
- Available format(s)
PDF- Category
- Implementation
- Publication info
- Preprint.
- History
- 2025-07-04: last updated
- 2025-07-04: published
- Short URL
- https://ia.cr/2025/1239
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2025/1239,
author = {Thomas Pornin},
title = {Improved (Again) Key Pair Generation for Falcon, BAT and Hawk},
howpublished = {Cryptology {ePrint} Archive, Paper 2025/1239},
year = {2025},
url = {https://eprint.iacr.org/2025/1239}
}