Quantum key distribution over distances as long as 30 km

Christophe Marand; Paul D. Townsend

doi:10.1364/OL.20.001695

Quantum key distribution over distances as long as 30 km

Christophe Marand
, Paul D. Townsend

BT Group plc

Research output: Contribution to journal › Article › peer-review

Abstract

We report the secure transmission of cryptographic keys over as long as 30 km of optical fiber, using an interferometric quantum cryptography scheme. Low error rates in the range 1.2–4% were obtained for the quantum transmissions, and error-free secret keys were distilled from the raw data by use of secure error-correction and privacy-amplification protocols.

Original language	English
Pages (from-to)	1695-1697
Number of pages	3
Journal	Optics Letters
Volume	20
Issue number	16
DOIs	https://doi.org/10.1364/OL.20.001695
Publication status	Published - 15 Aug 1995
Externally published	Yes

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title = "Quantum key distribution over distances as long as 30 km",

abstract = "We report the secure transmission of cryptographic keys over as long as 30 km of optical fiber, using an interferometric quantum cryptography scheme. Low error rates in the range 1.2–4\% were obtained for the quantum transmissions, and error-free secret keys were distilled from the raw data by use of secure error-correction and privacy-amplification protocols.",

author = "Christophe Marand and Townsend, \{Paul D.\}",

year = "1995",

month = aug,

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doi = "10.1364/OL.20.001695",

language = "English",

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AB - We report the secure transmission of cryptographic keys over as long as 30 km of optical fiber, using an interferometric quantum cryptography scheme. Low error rates in the range 1.2–4% were obtained for the quantum transmissions, and error-free secret keys were distilled from the raw data by use of secure error-correction and privacy-amplification protocols.

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DO - 10.1364/OL.20.001695

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SN - 0146-9592

VL - 20

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EP - 1697

JO - Optics Letters

JF - Optics Letters

IS - 16

ER -

Quantum key distribution over distances as long as 30 km

Abstract

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