Welcome to the official repository for HORCRUX.
HORCRUX is an ongoing project representing an evolving lightweight Post-Quantum Cryptography (PQC) RISC-V extension architecture. The development of this project is divided into different stages, with each stage representing a distinct step forward in the architecture's capabilities and implementation.
We chose the name HORCRUX to reflect the modular and multi-part nature of our architecture. Continuing with this theme, the distinct developmental stages of the project are represented by separate branches, taking inspiration from the well-known magical artifacts.
Below are the links to the active branches representing our current versions:
(Future/Reserved branches include: Diary, Ring, Nagini, and Harry).
(Note: Click on the Locket, Cup, or Diadem links to navigate to the respective branch for that specific version of the architecture).
If you use or build upon the work in these branches, please cite the corresponding papers:
For the cup branch:
Alessandra Dolmeta, Valeria Piscopo, Guido Masera, Maurizio Martina, and Michael Hutter. "HORCRUX - A Lightweight PQC-RISC-V eXtension Architecture." Cryptology ePrint Archive, Paper 2025/1934 (2025). Available at: https://eprint.iacr.org/2025/1934
For the diadem branch:
Valeria Piscopo, Alessandra Dolmeta, Maurizio Martina, Guido Masera, and Michael Hutter. "Raise the Shields: A Modular RISC-V Extension for Post Quantum Cryptography." In 63rd ACM/IEEE Design Automation Conference (DAC ’26), July 26–29, 2026, Long Beach, CA, USA. ACM, New York, NY, USA, 7 pages. https://doi.org/10.1145/3770743.3804373
For the locket branch:
TO BE DEFINED
This repository follows the licensing terms of the respective reference implementations used as the starting point. Please check individual algorithm directories for specific license details.
- Alessandra Dolmeta - alessandra.dolmeta@polito.it
- Valeria Piscopo - valeria.piscopo@polito.it