A step towards global key distribution

C Kurtseifer; M Halder; P Zarda; H Weinfurter; P.R. Tapster; JG Rarity

doi:10.1038/419450a

A step towards global key distribution

C Kurtseifer, M Halder, P Zarda, H Weinfurter, P.R. Tapster, JG Rarity

Department of Electrical & Electronic Engineering

Research output: Contribution to journal › Article (Academic Journal) › peer-review

340 Citations (Scopus)

Abstract

Large random bit-strings known as 'keys' are used to encode and decode sensitive data, and the secure distribution of these keys is essential to secure communications across the globe1. Absolutely secure key exchange2 between two sites has now been demonstrated over fibre3 and free-space4, 5, 6 optical links. Here we describe the secure exchange of keys over a free-space path of 23.4 kilometres between two mountains. This marks a step towards accomplishing key exchange with a near-Earth orbiting satellite and hence a global key-distribution system.

Translated title of the contribution	A step towards global key distribution
Original language	English
Pages (from-to)	450 - 450
Number of pages	1
Journal	Nature
Volume	419 (6906)
DOIs	https://doi.org/10.1038/419450a
Publication status	Published - Oct 2002

Research Groups and Themes

Photonics and Quantum

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10.1038/419450a

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title = "A step towards global key distribution",

abstract = "Large random bit-strings known as 'keys' are used to encode and decode sensitive data, and the secure distribution of these keys is essential to secure communications across the globe1. Absolutely secure key exchange2 between two sites has now been demonstrated over fibre3 and free-space4, 5, 6 optical links. Here we describe the secure exchange of keys over a free-space path of 23.4 kilometres between two mountains. This marks a step towards accomplishing key exchange with a near-Earth orbiting satellite and hence a global key-distribution system.",

author = "C Kurtseifer and M Halder and P Zarda and H Weinfurter and P.R. Tapster and JG Rarity",

year = "2002",

month = oct,

doi = "10.1038/419450a",

language = "English",

volume = "419 (6906)",

pages = "450 -- 450",

journal = "Nature",

issn = "1476-4687",

publisher = "Springer Nature",

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TY - JOUR

T1 - A step towards global key distribution

AU - Kurtseifer, C

AU - Halder, M

AU - Zarda, P

AU - Weinfurter, H

AU - Tapster, P.R.

AU - Rarity, JG

PY - 2002/10

Y1 - 2002/10

N2 - Large random bit-strings known as 'keys' are used to encode and decode sensitive data, and the secure distribution of these keys is essential to secure communications across the globe1. Absolutely secure key exchange2 between two sites has now been demonstrated over fibre3 and free-space4, 5, 6 optical links. Here we describe the secure exchange of keys over a free-space path of 23.4 kilometres between two mountains. This marks a step towards accomplishing key exchange with a near-Earth orbiting satellite and hence a global key-distribution system.

AB - Large random bit-strings known as 'keys' are used to encode and decode sensitive data, and the secure distribution of these keys is essential to secure communications across the globe1. Absolutely secure key exchange2 between two sites has now been demonstrated over fibre3 and free-space4, 5, 6 optical links. Here we describe the secure exchange of keys over a free-space path of 23.4 kilometres between two mountains. This marks a step towards accomplishing key exchange with a near-Earth orbiting satellite and hence a global key-distribution system.

U2 - 10.1038/419450a

DO - 10.1038/419450a

M3 - Article (Academic Journal)

SN - 1476-4687

VL - 419 (6906)

SP - 450

EP - 450

JO - Nature

JF - Nature

ER -

A step towards global key distribution

Abstract

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