Reference Pulse Attack on Continuous-Variable Quantum Key Distribution with Local Local Oscillator

Shengjun  Ren; Rupesh Kumar; Adrian  Wonfor; Xinke  Tang; Richard  Penty; Ian  White

Reference Pulse Attack on Continuous-Variable Quantum Key Distribution with Local Local Oscillator

Shengjun Ren, Rupesh Kumar, Adrian Wonfor , Xinke Tang, Richard Penty, Ian White

Physics

Research output: Working paper › Preprint

Abstract

We reveal a security loophole in the current state-of-art phase reference pulse sharing scheme for Continuous Variable Quantum Key Distribution using a Local Local Oscillator (LLO-CVQKD). The loophole is associated with the amplitude of the phase reference pulses which Eve can manipulate to extract information which cannot be discovered by legitimate users. We call this new attack as the reference pulse attack. We have demonstrated the efficiency of our attack for different LLO-CVQKD transmission distances. Unity attack efficiency can be achieved at a transmission distance greater than 21.2 km in the case of a zero loss channel. The distance extends to 24.3 km where hollow-core fibre channels are used. We also propose possible countermeasures.

Original language	Undefined/Unknown
Publication status	Published - 29 Sept 2017

Bibliographical note

8 pages, 7 figures, comments welcome

Keywords

quant-ph

Access to Document

1709.10202v1Other version, 837 KB

https://arxiv.org/abs/1709.10202

Cite this

@techreport{c464a2450fb9405481e79eb499171c2b,

title = "Reference Pulse Attack on Continuous-Variable Quantum Key Distribution with Local Local Oscillator",

abstract = "We reveal a security loophole in the current state-of-art phase reference pulse sharing scheme for Continuous Variable Quantum Key Distribution using a Local Local Oscillator (LLO-CVQKD). The loophole is associated with the amplitude of the phase reference pulses which Eve can manipulate to extract information which cannot be discovered by legitimate users. We call this new attack as the reference pulse attack. We have demonstrated the efficiency of our attack for different LLO-CVQKD transmission distances. Unity attack efficiency can be achieved at a transmission distance greater than 21.2 km in the case of a zero loss channel. The distance extends to 24.3 km where hollow-core fibre channels are used. We also propose possible countermeasures.",

keywords = "quant-ph",

author = "Shengjun Ren and Rupesh Kumar and Adrian Wonfor and Xinke Tang and Richard Penty and Ian White",

note = "8 pages, 7 figures, comments welcome",

year = "2017",

month = sep,

day = "29",

language = "Undefined/Unknown",

type = "WorkingPaper",

}

TY - UNPB

T1 - Reference Pulse Attack on Continuous-Variable Quantum Key Distribution with Local Local Oscillator

AU - Ren, Shengjun

AU - Kumar, Rupesh

AU - Wonfor , Adrian

AU - Tang, Xinke

AU - Penty, Richard

AU - White , Ian

N1 - 8 pages, 7 figures, comments welcome

PY - 2017/9/29

Y1 - 2017/9/29

N2 - We reveal a security loophole in the current state-of-art phase reference pulse sharing scheme for Continuous Variable Quantum Key Distribution using a Local Local Oscillator (LLO-CVQKD). The loophole is associated with the amplitude of the phase reference pulses which Eve can manipulate to extract information which cannot be discovered by legitimate users. We call this new attack as the reference pulse attack. We have demonstrated the efficiency of our attack for different LLO-CVQKD transmission distances. Unity attack efficiency can be achieved at a transmission distance greater than 21.2 km in the case of a zero loss channel. The distance extends to 24.3 km where hollow-core fibre channels are used. We also propose possible countermeasures.

AB - We reveal a security loophole in the current state-of-art phase reference pulse sharing scheme for Continuous Variable Quantum Key Distribution using a Local Local Oscillator (LLO-CVQKD). The loophole is associated with the amplitude of the phase reference pulses which Eve can manipulate to extract information which cannot be discovered by legitimate users. We call this new attack as the reference pulse attack. We have demonstrated the efficiency of our attack for different LLO-CVQKD transmission distances. Unity attack efficiency can be achieved at a transmission distance greater than 21.2 km in the case of a zero loss channel. The distance extends to 24.3 km where hollow-core fibre channels are used. We also propose possible countermeasures.

KW - quant-ph

M3 - Preprint

BT - Reference Pulse Attack on Continuous-Variable Quantum Key Distribution with Local Local Oscillator

ER -