Technical whitepapers, architecture guides, and research publications.
For the full research hub with publication status labels and summaries, see Research.
Technical papers detailing the cryptographic foundations and performance analysis of QuStream's Operational Perfect Secrecy system.
Papers 1, 3, 4, and 5 are IACR ePrint preprints (unreviewed). The q-stream v2 paper is a technical paper. Paper 2 is the only peer-reviewed publication (FTC 2025, Springer LNNS).
Technical paper, February 2026
Pure-noise epoch transmission with a self-ratcheting DFK state. Introduces QS-OTP reservoir mode, bounded ITS claims, explicit leakage accounting, and OTP-grade non-reuse semantics.
View PDFIACR ePrint 2025/1716
Formal OPS framework: bounds adversarial success probability. Generalises Shannon perfect secrecy to structured real-world traffic.
View PDFFTC 2025, Springer LNNS (conference paper)
Earlier v1 Q-Stream architecture covering Q-Blocks, DFKs, MEKs, and Master/Proxy-Node roles. Historical context for the current v2 ratchet design.
View PDFIACR ePrint, unreviewed preprint
Earlier v1 analysis of Q-Block embedding for QKD last-mile delivery. Current v2 design avoids transmitting key material and derives keys locally.
View PDFIACR ePrint, unreviewed preprint
System-level architecture: data/control plane split, error composition model, deployment topologies for finance, defence, CI, and satellite.
View PDFIACR ePrint, unreviewed preprint
18-dimension structural analysis. Structural latency: ~4–6 ns (QS-OTP) vs 40–70 ns (AES-GCM hardware). Architectural comparison, not empirical benchmark.
View PDFIACR ePrint preprint on Operational Perfect Secrecy framework.
OpenIACR ePrint preprint on practical OPS implementation.
OpenInteractive demonstration of QuStream's encryption in action.
OpenDetails on our NATO/EU SEQUEL project integration.
OpenOur team is available to discuss your specific implementation requirements and answer technical questions.
Book Technical Briefing