Kaiwei Qiu

Quantum physics provides some natural ways to generate genuine randomness, however, the generation of certifiable randomness still meets various theoretical and technical challenges. Recently, a work on a source device independent protocol was proposed, where the measurement apparatus is fully trusted and no assumption about the incoming light source is made. Here, we experimentally implement and verify a source device independent quantum random number generator (SDI-QRNG), built with off-the-shelf optical and electronic components. Furthermore, a series of quantum attacks were performed to evaluate the security and implementation vulnerability of the SDI-QRNG.

The National Quantum-Safe Network (NQSN) in Singapore is a nationwide collaborative platform and a field-deployed test-bed aimed at demonstrating quantum-safe cryptography solutions. NQSN links up academic, public and private members, targets trials for quantum key distribution (QKD) network with different QKD protocols, post-quantum cryptography (PQC) and classical symmetric key technologies.