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Quantum Cryptography Security

Information-theoretically secure data origin authentication with quantum and classical resources

arXiv
Authors: Georgios M. Nikolopoulos, Marc Fischlin

Year

2020

Paper ID

19311

Status

Preprint

Abstract Read

~2 min

Abstract Words

99

Citations

N/A

Abstract

In conventional cryptography, information-theoretically secure message authentication can be achieved by means of universal hash functions, and requires that the two legitimate users share a random secret key, which is twice as long as the message. We address the question as of whether quantum resources can offer any advantage over classical unconditionally secure message authentication codes. It is shown that passive prepare-and-measure quantum message-authentication schemes cannot do better than their classical counterparts. Subsequently we present an interactive entanglement-assisted scheme, which ideally allows for the authentication of classical messages with a classical key, which is as long as the message.

Why This Paper Matters

  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
  • It adds a 2020 reference point for readers tracking recent quantum research.
  • In conventional cryptography, information-theoretically secure message authentication can be achieved by means of universal hash functions, and requires that the two legitimate...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2011.06849 [2] arXiv https://arxiv.org/abs/2011.06849 [3] Publisher https://arxiv.org/abs/2011.06849

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