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Author Curty, Marcos ♦ Lütkenhaus, Norbert
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2008-06-04
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Quantum Physics ♦ physics:quant-ph
Abstract We investigate the quantum signature scheme proposed by Zeng and Keitel [Phys. Rev. A 65, 042312 (2002)]. It uses Greenberger-Horne-Zeilinger (GHZ) states and the availability of a trusted arbitrator. However, in our opinion the protocol is not clearly operationally defined and several steps are ambiguous. Moreover, we argue that the security statements claimed by the authors are incorrect.
Description Reference: Phys. Rev. A 77, 046301 (2008)
Educational Use Research
Learning Resource Type Article
Page Count 4


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