Researchers have achieved a major quantum computing breakthrough by using a 56-qubit quantum computer to generate certifiably random numbers verified by classical supercomputers, marking a shift from theoretical quantum advantage to practical application with significant implications for cryptography, security, and fairness.
IonQ is acquiring a controlling stake in quantum safe networking leader ID Quantique (IDQ) to strengthen its global quantum ecosystem, accelerate quantum networking development, and establish a strategic partnership with SK Telecom, with the acquisition expected to close in Q2 2025.
The ARQ19 patent’s claim of achieving long-range quantum key distribution without trusted nodes is unfounded because it relies on an unexplained confidential classical channel between end users that cannot be quantum-based due to distance limitations, making the system’s security ultimately dependent on this non-quantum channel rather than achieving true quantum security.
A theoretical study advancing the composable security analysis of Gaussian quantum networks in finite-size regimes, introducing a novel parameter estimation methodology based on end-user data sharing, while demonstrating potential breakthroughs in surpassing the PLOB bound through quantum amplifier-assisted chains, though practical implementation remains challenging.
Quantum dot-based single-photon sources offer superior security for quantum cryptography through their unique combination of on-demand emission, high brightness, low multiphoton contribution, and tunable coherence in photon-number states, outperforming traditional Poisson-distributed sources across multiple cryptographic primitives.
A novel framework based on semidefinite programming provides universal security bounds for device-independent quantum key distribution by directly calculating von Neumann entropy using complete measurement statistics, enabling analysis of complex protocols beyond traditional CHSH inequality violations and extending to other device-independent cryptographic tasks.
Rigorous security proofs for continuous variable quantum key distribution systems with intensity fluctuating sources are presented, dividing implementations into multiple cases based on monitoring capabilities and adapting techniques like Gaussian extremality and tagging to enable secure key generation over 50+ kilometers without hardware modifications.
ID Quantique (IDQ), the world leader in quantum-safe security solutions, today launched the Cerberis XG at the Inside Quantum Technology conference (IQT).
Kudelski Security, the cybersecurity division within the Swiss Kudelski Group, announced today the launch of a new focus on Quantum Security.
ID Quantique integrates with the Fortinet Security Fabric to provide long-term security for critical data transported over Virtual Private Networks (VPN).
Quantum Xchange announced the availability of Post-Quantum Cryptography (PQC) algorithms to its Phio Trusted Xchange key distribution system.