Tightly Secure PKE Combiner in the Quantum Random Oracle Model

doi:10.3390/cryptography6020015

Paper

Tightly Secure PKE Combiner in the Quantum Random Oracle Model

Published Mar 29, 2022 · Brian Goncalves, Atefeh Mashatan

Cryptogr.

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Abstract

The development of increasingly sophisticated quantum computers poses a long-term threat to current cryptographic infrastructure. This has spurred research into both quantum-resistant algorithms and how to safely transition real-world implementations and protocols to quantum-resistant replacements. This transition is likely to be a gradual process due to both the complexity and cost associated with transitioning. One method to ease the transition is the use of classical–quantum hybrid schemes, which provide security against both classical and quantum adversaries. We present a new combiner for creating hybrid encryption schemes directly from traditional encryption schemes. Our construction is the only existing proposal in the literature with IND-CCA-security in the classical and quantum random oracle models, respectively.

Study Snapshot

Key takeawayThis paper presents a new combiner for creating hybrid encryption schemes that provide security against both classical and quantum adversaries, offering a promising approach for addressing the quantum computer threat.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Tightly Secure PKE Combiner in the Quantum Random Oracle Model

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