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자연과학대학
수학전공
Journal papers
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Forgeable quantum messages in arbitrated quantum signature schemes
Title
Forgeable quantum messages in arbitrated quantum signature schemes
Authors
Kim T.
;
Lee H.-S.
;
Lee S.
Ewha Authors
이향숙
SCOPUS Author ID
이향숙
Issue Date
2017
Journal Title
Quantum Information Processing
ISSN
1570-0755
Citation
Quantum Information Processing vol. 16, no. 11
Keywords
Arbitrated quantum signature schemes
;
Forgeable quantum messages
;
Quantum signature
Publisher
Springer New York LLC
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
Recently, the concept on ‘forgeable quantum messages’ in arbitrated quantum signature schemes was introduced by Kim et al. (Phys Scr 90:025101, 2015), and it has been shown that there always exists such a forgeable quantum message for every known arbitrated quantum signature scheme with four quantum encryption operators and the specific two rotation operators. We first extend the result to the case of any two unitary rotation operators and then consider the forgeable quantum messages in the schemes with four quantum encryption operators and three or more rotation operators. We here present a necessary and sufficient condition for existence of a forgeable quantum message and moreover, by employing the condition show that there exists an arbitrated quantum signature scheme which contains no forgeable quantum message–signature pairs. © 2017, Springer Science+Business Media, LLC.
DOI
10.1007/s11128-017-1721-9
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