Weak randomness seriously limits the security of quantum key distribution

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F12%3A00057910" target="_blank" >RIV/00216224:14330/12:00057910 - isvavai.cz</a>
Result on the web
<a href="http://link.aps.org/doi/10.1103/PhysRevA.86.062308" target="_blank" >http://link.aps.org/doi/10.1103/PhysRevA.86.062308</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.86.062308" target="_blank" >10.1103/PhysRevA.86.062308</a>

Result language
angličtina
Original language name
Weak randomness seriously limits the security of quantum key distribution
Original language description
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.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
IN - Informatics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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