Description du projet :
One of the main goals of cryptography is to ensure the confidentiality and authenticity of data in an increasingly digitized world. However, the emergence of quantum computers poses a significant threat to the security of conventional cryptographic methods. These computers have the potential to solve complex mathematical problems, upon which much of today's encryption relies, with unprecedented speed, rendering current encryption techniques vulnerable.
In response to this looming challenge, the DiCoQuaNet project was conceived with the ambitious objective of fortifying computer networks against the impending quantum threat. This collaborative effort brings together the expertise of HEIG-VD, Cysec, and Novus Q, a startup from Singapore.
Central to our endeavour was the development of a network architecture fortified against quantum attacks. Leveraging cutting-edge research in post-quantum cryptography, we engineered a quantum-resistant Virtual Private Network (VPN) infrastructure. This involved enhancing the Wireguard VPN to exclusively employ quantum-resistant technologies. Additionally, we ensured a possible integration with quantum key distribution (QKD) mechanisms, ensuring additional ways to secure the initialization of our VPN.
Beyond network fortification, we tackled the challenge of implementing threshold signature algorithms. Traditional signatures rely on a single entity possessing all necessary key material for generating signatures. In contrast, threshold signatures distribute key material among multiple stakeholders, reducing the risk of compromise. At the project's inception, existing threshold signature schemes lacked resilience against quantum attacks. Through intensive research and development efforts, we introduced the QuaRTS algorithm—a post-quantum threshold signature algorithm. This innovative algorithm not only boasts comprehensive security proofs but also features an implementation optimized for our secure, quantum-resistant network.
Moreover, our focus extended beyond theoretical advancements to practical performance optimization. By finely tuning the implementation of QuaRTS, we achieved remarkable efficiency gains, ensuring its viability in real-world scenarios.
In summary, the DiCoQuaNet project represents a pioneering effort in fortifying computer networks against the quantum threat. We obtained a performant quantum-resistant VPN solution and one of the first threshold signature algorithm that resists quantum attacks. Through collaboration, innovation, and meticulous implementation, we have laid the groundwork for a secure digital future amidst the quantum revolution.
Equipe de recherche au sein de la HES-SO:
Duc Alexandre
Partenaires professionnels: Cysec, Switzerland; NovusQ, Singapore
Durée du projet:
01.04.2021 - 31.03.2024
Statut: Terminé
SWITCH edu-ID
Administration
