Quantum key distribution with authentication

Details Quantum key distribution with authentication Quantum key distribution with authentication

1998-12-10

arxiv.org/abs/quant-ph/9812022v2

Physics

Quantum Physics

15 pages, no figures

Scientific paper

The security of the previous quantum key distribution (QKD) protocols, which is guaranteed by the nature of physics law, is based on the legitimate users. However, impersonation of the legitimate communicators by eavesdroppers, in practice, will be inevitable. In fact, the previous QKD protocols is unsecure without authentication in practical communication. In this paper, we proposed an improved QKD protocol that can simultaneously distribute the quantum secret key and verify the communicators' identity. This presented authentication scheme is provably secure.

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