Weak randomness seriously limits the security of quantum key
distribution

J 2012

Weak randomness seriously limits the security of quantum key distribution

BOUDA, Jan, Matej PIVOLUSKA, Martin PLESCH and Colin WILMOTT

Basic information

Original name

Weak randomness seriously limits the security of quantum key distribution

Authors

BOUDA, Jan (203 Czech Republic, guarantor, belonging to the institution), Matej PIVOLUSKA (703 Slovakia, belonging to the institution), Martin PLESCH (703 Slovakia, belonging to the institution) and Colin WILMOTT (372 Ireland, belonging to the institution)

Edition

Physical Review A, New York, American physical society, 2012, 1050-2947

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10201 Computer sciences, information science, bioinformatics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 3.042

RIV identification code

RIV/00216224:14330/12:00057910

Organization unit

Faculty of Informatics

DOI

http://dx.doi.org/10.1103/PhysRevA.86.062308

UT WoS

000315047500002

Keywords in English

weak randomness; quantum key distribution

Abstract

V originále

In usual security proofs of quantum protocols the adversary (Eve) is expected to have full control over any quantum communication between any communicating parties (Alice and Bob). Eve is also expected to have full access to an authenticated classical channel between Alice and Bob. Unconditional security against any attack by Eve can be proved even in the realistic setting of device and channel imperfection. In this paper we show that the security of quantum key distribution protocols is ruined if one allows Eve to possess a very limited access to the random sources used by Alice. Such knowledge should always be expected in realistic experimental conditions via different side channels.

Links

GAP202/12/1142, research and development project

Name: Slabé zdroje entanglementu a náhodnosti

Investor: Czech Science Foundation

GBP202/12/G061, research and development project

Name: Centrum excelence - Institut teoretické informatiky (CE-ITI) (Acronym: CE-ITI)

Investor: Czech Science Foundation

GD102/09/H042, research and development project

Name: Matematické a inženýrské metody pro vývoj spolehlivých a bezpečných paralelních a distribuovaných počítačových systémů

Investor: Czech Science Foundation

MUNI/A/0914/2009, interní kód MU

Name: Rozsáhlé výpočetní systémy: modely, aplikace a verifikace (Acronym: SV-FI MAV)

Investor: Masaryk University, Category A

Citovat

BOUDA, Jan, Matej PIVOLUSKA, Martin PLESCH and Colin WILMOTT. Weak randomness seriously limits the security of quantum key distribution. Physical Review A. New York: American physical society, 2012, vol. 86, No 6, p. 0623081-0623085. ISSN 1050-2947. Available from: https://dx.doi.org/10.1103/PhysRevA.86.062308.

@article{1077735,
   author = {Bouda, Jan and Pivoluska, Matej and Plesch, Martin and Wilmott, Colin},
   article_location = {New York},
   article_number = {6},
   doi = {http://dx.doi.org/10.1103/PhysRevA.86.062308},
   keywords = {weak randomness; quantum key distribution},
   language = {eng},
   issn = {1050-2947},
   journal = {Physical Review A},
   title = {Weak randomness seriously limits the security of quantum key distribution},
   url = {http://link.aps.org/doi/10.1103/PhysRevA.86.062308},
   volume = {86},
   year = {2012}
}

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JF  - Physical Review A
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N2  - In usual security proofs of quantum protocols the adversary (Eve) is expected to have full control over any quantum communication between any communicating parties (Alice and Bob). Eve is also expected to have full access to an authenticated classical channel between Alice and Bob. Unconditional security against any attack by Eve can be proved even in the realistic setting of device and channel imperfection. In this paper we show that the security of quantum key distribution protocols is ruined if one allows Eve to possess a very limited access to the random sources used by Alice. Such knowledge should always be expected in realistic experimental conditions via different side channels.
ER  -

BOUDA, Jan, Matej PIVOLUSKA, Martin PLESCH and Colin WILMOTT. Weak randomness seriously limits the security of quantum key distribution. \textit{Physical Review A}. New York: American physical society, 2012, vol.~86, No~6, p.~0623081-0623085. ISSN~1050-2947. Available from: https://dx.doi.org/10.1103/PhysRevA.86.062308.

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