REDIMadrid partners with Ciena to deliver quantum-secure network
REDIMadrid has launched an End-to-End Quantum Secure Data Transport Project with Ciena to advance secure communication for research and education in Madrid.
The initiative combines Quantum Key Distribution (QKD) technology with existing optical fibre infrastructures to improve protection against both current and emerging cyber threats, including those posed by quantum computing developments. REDIMadrid, which operates as the research and education network for the Comunidad de Madrid and is managed by IMDEA Software, is carrying out the project in collaboration with Ciena, a global high-speed connectivity company.
Network technology
The project utilises Ciena's 6500 photonic line system, a technology that enables a quantum channel to coexist alongside existing Dense Wavelength Division Multiplexing (DWDM) traffic on the same fibre. According to Ciena, one of the main benefits is that this approach provides spectral isolation between quantum and optical channels in the C-band, eliminating the need for a separate, dedicated fibre to carry the quantum channel. This allows organisations to implement QKD on their current fibre infrastructure without new, costly installations.
The system also makes use of Ciena's Waveserver 5 optical encryption solutions, designed for compatibility with any QKD system as well as for supporting Post-Quantum Cryptography (PQC) algorithms, enabling adaptive protection for sensitive data in transit.
Quantum security
QKD is a methodology that allows two parties to create shared encryption keys using quantum physics, offering theoretically unbreakable encryption. Its introduction into existing fibre networks could be particularly significant for sectors requiring robust security, such as academic and public research institutions in Madrid.
Paulina Gomez, Senior Product Marketing Advisor at Ciena, commented on the significance of this deployment:
"This collaboration demonstrates how we can help our customers stay ahead of the threats posed by quantum computing to today's cryptography; whether it's using our proven photonic line systems to eliminate the need for additional fiber to carry the quantum channel, or by using our Waveserver 5 optical encryption solutions that are designed to interwork with any QKD system and to support Post-Quantum Cryptography (PQC) algorithms."
The project is expected to lay the groundwork for a quantum-resilient network architecture that meets both current and future security and data integrity requirements for the research community in the region.
Future readiness
David Rincón, Chief Network Engineer at REDIMadrid IMDEA Software, highlighted the significance of the programme's scope to the regional network:
"Working alongside Ciena, we are confident that this effort will pave the way for widespread adoption of quantum-secure networks, while strengthening the capabilities and reliability of REDIMadrid's infrastructure in the MadQCI network. This represents a significant milestone in the advancement of quantum-secure data transport. By integrating Quantum Key Distribution technology with optical infrastructure, we are taking a crucial step toward building next-generation networks that are not only more secure, but also highly scalable and resilient."
Axians, a technology partner specialising in digital and network infrastructures, is also working with both REDIMadrid and Ciena to facilitate the technical implementation and integration required for the project. The approach is designed to ensure swift deployment and interoperability with existing systems.
By utilising Ciena's technology to support spectral isolation, the project enables the confidential and secure transmission of research and educational data without requiring the substantial investment in new, dedicated quantum network infrastructure. This method also supports evolving security requirements as post-quantum threats continue to develop, providing long-term data confidentiality and integrity for users of the REDIMadrid network.
The development underscores Madrid's effort to remain at the forefront of secure research networking, leveraging advanced cryptographic techniques, including both quantum and post-quantum protection, to safeguard information critical to the academic and scientific community.
