🔬 RESEARCH BRIEFING // CYBERSECURITY & QUANTUM SYSTEMS
arXiv ID: 2501.09412
Post-Quantum Lattice Cryptography for High-Frequency Global Financial Settlement Networks
Authors: Dr. H. Lindqvist, S. Nakamura, K. Al-Mansoor • Institution: ETH Zurich & Bank for International Settlements Innovation Hub
Executive Abstract Synthesis
As fault-tolerant quantum processors approach cryptographic relevance, legacy RSA and ECC signatures securing cross-border interbank rails face existential 'harvest-now, decrypt-later' risks. This paper benchmarks NIST-standardized ML-KEM (Kyber) and ML-DSA (Dilithium) protocols under sub-millisecond settlement loads.
Key Empirical Findings & Benchmarks
- Hybrid lattice-based TLS handshakes add less than 0.38ms latency across trans-Atlantic fiber corridors between New York, London, and Frankfurt.
- Hardware security modules (HSMs) and FIDO2 keys like YubiKey 5 Series can transition to post [Amazon ↗]-quantum key encapsulation via firmware micro-patches.
- Central bank digital liquidity corridors require immediate dual-signature migration before 2028.
Strategic & Hardware Implementation Impact
Financial institutions, cloud providers, and digital asset custodians must upgrade hardware security keys and TLS termination layers to hybrid post-quantum standards immediately.
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