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Security of ping-pong protocol based on pairs of completely entangled qudits

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Quantum secure direct communication protocols offer confidential transmission of classic information over quantum channel without prior key agreement. The ping-pong based protocols provide asymptotic security and detailed analysis of security level provided by each variant of the protocol is required. The paper presents a general method of calculation of the eavesdropped information as a function of the attack detection probability. The method is applied to the ping-pong protocol based on completely entangled pairs of qudits. The upper and lower bounds on the amount of the leaked information and eavesdropping detection probability are provided.

Original languageEnglish
Pages (from-to)1419-1430
Number of pages12
JournalQuantum Information Processing
Volume11
Issue number6
DOIs
Publication statusPublished - Dec 2012

Keywords

  • Ping-pong protocol
  • Quantum cryptography
  • Quantum secure direct communication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Theoretical Computer Science
  • Signal Processing
  • Modeling and Simulation
  • Electrical and Electronic Engineering

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