Wave-Particle duality: Quantum cryptography: Security criteria reexamined

Dagomir Kaszlikowski; Ajay Gopinathan; Yeong Cherng Liang; L. C. Kwek; Berthold Georg Englert

doi:10.1103/PhysRevA.70.032306

Wave-Particle duality: Quantum cryptography: Security criteria reexamined

Dagomir Kaszlikowski
, Ajay Gopinathan
, Yeong Cherng Liang
, L. C. Kwek
, Berthold Georg Englert

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

We find that the generally accepted security criteria are flawed for a whole class of protocols for quantum cryptography. This is so because a standard assumption of the security analysis, namely that the so-called square-root measurement is optimal for eavesdropping purposes, is not true in general. There are rather large parameter regimes in which the optimal measurement extracts substantially more information than the squareroot measurement.

Original language	English
Title of host publication	Quantum Paths
Subtitle of host publication	Festschrift in Honor of Berge Englert on his 60th Birthday
Publisher	World Scientific Publishing Co.
Pages	94-98
Number of pages	5
ISBN (Electronic)	9789814651844
ISBN (Print)	9789814651837
DOIs	https://doi.org/10.1103/PhysRevA.70.032306
Publication status	Published - 2015 Jan 1

All Science Journal Classification (ASJC) codes

General Arts and Humanities
General Physics and Astronomy

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10.1103/PhysRevA.70.032306

Cite this

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abstract = "We find that the generally accepted security criteria are flawed for a whole class of protocols for quantum cryptography. This is so because a standard assumption of the security analysis, namely that the so-called square-root measurement is optimal for eavesdropping purposes, is not true in general. There are rather large parameter regimes in which the optimal measurement extracts substantially more information than the squareroot measurement.",

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Wave-Particle duality: Quantum cryptography: Security criteria reexamined

Abstract

All Science Journal Classification (ASJC) codes

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