The British Nation Cyber Security Centre (NCSC) has just released an interesting white paper which sets out its position on two security technologies that rely on quantum physics: Quantum Key Distribution (QKD) and Quantum Random Number Generation (QRNG).
Particularly, the NCSC clearly mentions that:
Given the specialised hardware requirements of QKD over classical cryptographic key agreement mechanisms and the requirement for authentication in all use cases, the NCSC does not endorse the use of QKD for any government or military applications, and cautions against sole reliance on QKD for business-critical networks, especially in Critical National Infrastructure sectors.
