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ETSI's new technical report exposes critical vulnerabilities in Quantum Random Number Generators (QRNGs), demonstrating that physical quantum unpredictability is insufficient without rigorous validation of the entire hardware and operational pipeline. The guidance establishes a standardized framework for assessing QRNG implementations against side-channel risks, ensuring that cryptographic security relies on verified entropy sources rather than implicit trust in the device itself. This marks a pivotal shift toward robust engineering practices essential for securing future quantum-enhanced communication systems.

Sources coveringQuantum Zeitgeist, AI Alignment Forum, Quantum Frontiers, Quantum Computing Report

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ETSI flags weak spots in quantum random number generators

Quantum ZeitgeistSeptember 24, 20262 min read

ETSI announces its Technical Report, ETSI TR 104 171, identifying limitations of Quantum Random Number Generators (QRNGs) and delivering implementation guidance to mitigate weaknesses that could undermine the quality and security of QRNG outputs. Cryptographic systems rely on unpredictable random values, and while QRNGs exploit quantum phenomena, an adversary with access to side-information can exploit predictability.

A new technical report, ETSI TR 104 171, details how adversaries exploiting side-information can undermine the randomness of Quantum Random Number Generators (QRNGs) even when their output appears statistically sound. The report from ETSI delivers implementation guidance to address these weaknesses in QRNGs,…

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