On the security of the Kirchhoff-law-Johnson-noise (KLJN) communicator Academic Article

abstract

• 2014, Springer Science+Business Media New York. A simple and general proof is given for the information theoretic (unconditional) security of the Kirchhoff-lawJohnson-noise key exchange system under practical conditions. The unconditional security for ideal circumstances, which is based on the second law of thermodynamics, is found to prevail even under slightly non-ideal conditions. This security level is guaranteed by the continuity of functions describing classical physical linear, as well as stable non-linear, systems. Even without privacy amplification, Eves probability for successful bit guessing is found to converge toward 0.5i.e., the perfect security levelwhen ideal conditions are approached.

authors

• Kish, Laszlo

published proceedings

• QUANTUM INFORMATION PROCESSING

altmetric score

• 6.25

author list (cited authors)

• Kish, L. B., & Granqvist, C. G.

citation count

• 40

complete list of authors

• Kish, Laszlo B||Granqvist, Claes G

publication date

• January 2014

publisher

• Springer Nature  Publisher

published in

• Quantum Information Processing  Journal

keywords

• Classical Physical Secure Key Exchange
• Johnson Noise

Digital Object Identifier (DOI)

• 10.1007/s11128-014-0729-7

start page

• 2213

end page

• 2219

volume

• 13

issue

• 10

URL

• http://dx.doi.org/10.1007/s11128-014-0729-7