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Authors: Patrik Dobias 1 ; Sara Ricci 1 ; Petr Dzurenda 1 ; Lukas Malina 1 and Nikita Snetkov 2 ; 3

Affiliations: 1 Department of Telecommunications, Brno University of Technology, Brno, Czech Republic ; 2 Cybernetica AS, Mäealuse 2/1, 12618 Tallinn, Estonia ; 3 Tallinn University of Technology, Akadeemia Tee 15a, 12618 Tallinn, Estonia

Keyword(s): Threshold Signature, Lattice-Based Cryptography, Software Implementation, Dilithium, Homomorphic Commitment, Embedded Systems, Constrained Devices.

Abstract: Threshold signatures have gained increased attention especially due to their recent applications in blockchain technologies. In fact, current cryptocurrencies such as Bitcoin, and Cardano started to support multi-signature transactions. Even if the Schnorr-based threshold signatures improve the blockchain’s privacy and scalability, these schemes do not provide post-quantum security. In this paper, we propose the optimization of the DS2 lattice-based (n,n)-threshold signature scheme and present its practical implementation. Moreover, we evaluate our optimized implementation of the DS2 scheme on different platforms. The results demonstrate that our implementation is easily portable and executable on constrained devices based on ARM Cortex-A53, ARM Cortex-M3, and ESP32 architectures.


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Paper citation in several formats:
Dobias, P.; Ricci, S.; Dzurenda, P.; Malina, L. and Snetkov, N. (2023). Lattice-Based Threshold Signature Implementation for Constrained Devices. In Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT; ISBN 978-989-758-666-8; ISSN 2184-7711, SciTePress, pages 724-730. DOI: 10.5220/0012112700003555

author={Patrik Dobias. and Sara Ricci. and Petr Dzurenda. and Lukas Malina. and Nikita Snetkov.},
title={Lattice-Based Threshold Signature Implementation for Constrained Devices},
booktitle={Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT},


JO - Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT
TI - Lattice-Based Threshold Signature Implementation for Constrained Devices
SN - 978-989-758-666-8
IS - 2184-7711
AU - Dobias, P.
AU - Ricci, S.
AU - Dzurenda, P.
AU - Malina, L.
AU - Snetkov, N.
PY - 2023
SP - 724
EP - 730
DO - 10.5220/0012112700003555
PB - SciTePress