Using Hash-Based Signatures to Bootstrap Quantum Key Distribution

Details Using Hash-Based Signatures to Bootstrap Quantum Key Distribution Using Hash-Based Signatures to Bootstrap Quantum Key Distribution

2011-09-13

arxiv.org/abs/1109.2844v2

Physics

Quantum Physics

9 pages

Scientific paper

Quantum Key Distribution is a secret distribution technique that requires an authenticated channel. This channel is usually created on top of an un-authenticated communication medium using unconditionally secure message authentication codes (MAC) and an initial common secret. We examine the consequences of replacing this MAC algorithm by a cryptographic hash-based signature algorithm, like the Lamport algorithm, and show that in practical settings it results in an increase of the security of QKD and ease its deployment.

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