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Secret sharing with...
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Tavakoli, ArminStockholms universitet,Fysikum
(author)
Secret sharing with a single d-level quantum system
- Article/chapterEnglish2015
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LIBRIS-ID:oai:DiVA.org:su-122122
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-122122URI
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https://doi.org/10.1103/PhysRevA.92.030302DOI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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We give an example of a wide class of problems for which quantum-information protocols based on multisystem entanglement can be mapped into much simpler ones involving one system. Secret sharing is a cryptographic primitive which plays a central role in various secure multiparty computation tasks and management of keys in cryptography. In secret sharing protocols, a classical message is divided into shares given to recipient parties in such a way that some number of parties need to collaborate in order to reconstruct the message. Quantum protocols for the task commonly rely on multipartite GHZ entanglement. We present a multiparty secret sharing protocol which requires only sequential communication of a single quantum d-level system (for any prime d). It has huge advantages in scalability and can be realized with state-of-the-art technology.
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Herbauts, IsabelleStockholms universitet,Fysikum(Swepub:su)iherb
(author)
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Zukowski, Marek
(author)
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Bourennane, MohamedStockholms universitet,Fysikum(Swepub:su)boure
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Stockholms universitetFysikum
(creator_code:org_t)
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In:Physical Review A. Atomic, Molecular, and Optical Physics92:31050-29471094-1622
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