In collaboration with Pramatra Space, this project focused on developing quantum-secure communication technologies for satellite-based networks. As space infrastructure becomes increasingly important for global communications and defense applications, ensuring the security of transmitted data is a critical challenge.

The project centered on the development of protocols based on Quantum Key Distribution (QKD), a cryptographic method that leverages the principles of quantum mechanics to enable provably secure key exchange. QKD systems detect any eavesdropping attempts through disturbances in the quantum states used to transmit cryptographic keys, making them fundamentally secure against interception.

In parallel with protocol development, the WISER research team also designed the photonics-based QKD chip optimized for satellite platforms. The design focused on achieving compact form factors, optical stability, and reliability under the constraints of space-based operation, including radiation exposure, temperature fluctuations, and strict payload limitations.

The outcome of the project is a state of the art chip architecture for space-based QKD communication, enabling secure quantum key exchange between satellites and ground stations. The resulting IP has been patented by the associated startup, supporting the development of next-generation quantum-secure satellite communication infrastructure.

WISER Research Fellows: Bakhao Dioum, Zbynka Kekula