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The debate over QKD: A rebuttal to the NSA's objections

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arxiv 2307.15116 v1 pith:LZXJWNWA submitted 2023-07-27 quant-ph cs.CR

Renato Renner , Ramona Wolf This is my paper · ORCID
classification quant-phcs.CR
keywords argueassessingattentionconcludingcriticismcryptographydebateexpected
verification ladder T0 review T1 audit T2 compute T3 formal
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A recent publication by the NSA assessing the usability of quantum cryptography has generated significant attention, concluding that this technology is not recommended for use. Here, we reply to this criticism and argue that some of the points raised are unjustified, whereas others are problematic now but can be expected to be resolved in the foreseeable future.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Routing and Wavelength Assignment with Minimal Attack Radius for QKD Networks

    quant-ph 2025-08 conditional novelty 6.0 of 10

    A new attack-radius metric and routing algorithm for QKD networks reduces the maximum number of key requests disrupted by a single fiber jamming attack.

  2. Modulator-free transmitter for quantum key distribution in metropolitan area networks

    quant-ph 2025-07 conditional novelty 6.0 of 10

    A two-laser, modulator-free transmitter prepares time-bin QKD states, and a decoy-free three-state protocol is analyzed, giving an estimated secure range near 40 km.

  3. A Critical Analysis of Deployed Use Cases for Quantum Key Distribution and Comparison with Post-Quantum Cryptography

    cs.CR 2025-02 conditional novelty 6.0 of 10

    A security analysis of 11 deployed QKD use cases finds that QKD provides little or no advantage over PQC or pre-shared keys in most scenarios, with only OTP-based short-distance links offering a clear benefit.

  4. Relaying Quantum Information

    quant-ph 2025-07 conditional novelty 5.0 of 10

    For finite-dimensional quantum relay channels, the paper proves achievable quantum-information and entanglement-generation rates using full and partial decode-forward coding.

  5. Are Enterprises Ready for Quantum-Safe Cybersecurity?

    cs.CR 2025-09 conditional novelty 3.0 of 10

    A survey-based review concludes that enterprise readiness for quantum-safe cryptography is uneven and generally insufficient, with fewer than 5% having transition plans.

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