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arXiv · 1707.02766

A note on quantum safe symmetric key growing

Alexander Ling·Christoph Wildfeuer·Valerio Scarani
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Abstract

Quantum key distribution is a cryptographic primitive for the distribution of symmetric encryption keys between two parties that possess a pre-shared secret. Since the pre-shared secret is a requirement, quantum key distribution may be viewed as a key growing protocol. We note that the use of pre-shared secrets coupled with access to randomness beacons may enable key growing which, though not secure from an information-theoretic standpoint, remains quantum safe.

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Alexander Ling, Christoph Wildfeuer, Valerio Scarani. 2017-07-10. A note on quantum safe symmetric key growing. https://arxiv.org/abs/1707.02766

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