Blockchain-Based Multi-Signature System for Critical Scenarios

Cristina Alcaraz, Davide Ferraris, Hector Guzman, Javier Lopez

2025

Abstract

Blockchain technology plays a crucial role in securing and streamlining transactions across various critical domains. For that reason, this paper presents a Blockchain-based multi-signature system designed for high-stakes scenarios, where both user and Blockchain-generated signatures are required to authorize transactions. By integrating smart contracts, multi-signature coordination, and Blockchain validation, the proposed architecture enhances security, accountability, and resilience. The framework is applied to two key sectors: Mobility and energy. In mobility, it addresses two distinct use cases: Ambulance services, where secure and verifiable authorization of emergency access is required, and insurance claim processing, ensuring transparent, tamper-proof validations. In the energy sector, the system facilitates decentralized, trust-enhanced peer-to-peer energy trading by guaranteeing transaction integrity and compliance. The architecture leverages smart contracts to enforce transaction policies, aggregate multi-signatures, and validate operations while maintaining transparency and reliability. This work highlights the importance of decentralized decision-making and immutable records in securing critical infrastructures. Future research will focus on optimizing performance and evaluating the system’s integration with existing Blockchain platforms such as Ethereum and Hyperledger.

Paper Citation

in Harvard Style

Alcaraz C., Ferraris D., Guzman H. and Lopez J. (2025). Blockchain-Based Multi-Signature System for Critical Scenarios. In Proceedings of the 22nd International Conference on Security and Cryptography - Volume 1: SECRYPT; ISBN 978-989-758-760-3, SciTePress, pages 221-232. DOI: 10.5220/0013559000003979

in Bibtex Style

@conference{secrypt25,
author={Cristina Alcaraz and Davide Ferraris and Hector Guzman and Javier Lopez},
title={Blockchain-Based Multi-Signature System for Critical Scenarios},
booktitle={Proceedings of the 22nd International Conference on Security and Cryptography - Volume 1: SECRYPT},
year={2025},
pages={221-232},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013559000003979},
isbn={978-989-758-760-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 22nd International Conference on Security and Cryptography - Volume 1: SECRYPT
TI - Blockchain-Based Multi-Signature System for Critical Scenarios
SN - 978-989-758-760-3
AU - Alcaraz C.
AU - Ferraris D.
AU - Guzman H.
AU - Lopez J.
PY - 2025
SP - 221
EP - 232
DO - 10.5220/0013559000003979
PB - SciTePress