The network impact of hijacking a quantum repeater

Takahiko Satoh, Shota Nagayama, Takafumi Oka, Rodney D Van Meter

Research output: Contribution to journalArticle

Abstract

In quantum networking, repeater hijacking menaces the security and utility of quantum applications. To deal with this problem, it is important to take a measure of the impact of quantum repeater hijacking. First, we quantify the work of each quantum repeater with regards to each quantum communication. Based on this, we show the costs for repeater hijacking detection using distributed quantum state tomography and the amount of work loss and rerouting penalties caused by hijacking. This quantitative evaluation covers both purification-entanglement swapping and quantum error correction repeater networks. Naive implementation of the checks necessary for correct network operation can be subverted by a single hijacker to bring down an entire network. Fortunately, the simple fix of randomly assigned testing can prevent such an attack.

Original languageEnglish
Article number034008
JournalQuantum Science and Technology
Volume3
Issue number3
DOIs
Publication statusPublished - 2018 May 25

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air piracy
repeaters
Telecommunication repeaters
Quantum communication
quantum communication
Error correction
penalties
purification
fixing
attack
Purification
Tomography
tomography
costs
evaluation
Testing

Keywords

  • quantum network
  • quantum repeater
  • route hijacking

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)
  • Electrical and Electronic Engineering
  • Materials Science (miscellaneous)

Cite this

The network impact of hijacking a quantum repeater. / Satoh, Takahiko; Nagayama, Shota; Oka, Takafumi; Van Meter, Rodney D.

In: Quantum Science and Technology, Vol. 3, No. 3, 034008, 25.05.2018.

Research output: Contribution to journalArticle

Satoh, Takahiko ; Nagayama, Shota ; Oka, Takafumi ; Van Meter, Rodney D. / The network impact of hijacking a quantum repeater. In: Quantum Science and Technology. 2018 ; Vol. 3, No. 3.
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