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Eavesdropping on practical quantum cryptography

Abstract:

Practical implementations of quantum cryptography use attenuated laser pulses as the signal source rather than single photons. The channels used to transmit are also lossy. Here we give a simple derivation of two beam-splitting attacks on quantum cryptographic systems using laser pulses, either coherent or mixed states with any mean photon number. We also give a simple derivation of a photon-number splitting attack, the most advanced, both in terms of performance and technology required. We f...

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Publication status:
Published

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Publisher copy:
10.1080/0950034031000077542

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Journal:
JOURNAL OF MODERN OPTICS More from this journal
Volume:
50
Issue:
13
Pages:
1989-2011
Publication date:
2003-09-10
DOI:
ISSN:
0950-0340
Language:
English
Pubs id:
pubs:156819
UUID:
uuid:692e9a8d-6683-4049-b8c5-3b0b65ca3943
Local pid:
pubs:156819
Source identifiers:
156819
Deposit date:
2012-12-19

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