Quantum Key Distribution (QKD) is a technology that allows the exchange of cryptographic keys using quantum mechanical principles. Unlike other approaches, it allows detecting any interception attempt during transmission, which makes it especially relevant for high-security communications.
At CTIC Quantum Lab we work on the design and evaluation of communications architectures that integrate this technology in real environments.
Security fundamentals
QKD uses quantum states of light (photons) to transmit cryptographic keys. Any interception attempt inevitably alters these states, and this alteration can be detected by communication systems. This allows only those keys that have been securely transmitted to be used.
Integration into communication networks
At CTIC Quantum Lab we focus on the practical challenges of incorporating QKD into existing communication infrastructures:
- Key management systems: we investigate the integration of QKD devices with platforms that allow these quantum keys to be distributed and used in conventional encryption systems.
- Network architectures: we design and evaluate deployment scenarios, from direct point-to-point links to networks connecting multiple entities.
