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Multiparty Delegated Quantum Computing

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http://www.mdpi.com/2410-387X/1/2/12
Original languageEnglish
Pages (from-to)1-20
Number of pages20
JournalCryptography
Volume1
Issue number2
DOIs
Publication statusPublished - 30 Jul 2017

Abstract

Quantum computing has seen tremendous progress in the past few years. However, due to limitations in the scalability of quantum technologies, it seems that we are far from constructing universal quantum computers for everyday users. A more feasible solution is the delegation of computation to powerful quantum servers on the network. This solution was proposed in previous studies of blind quantum computation, with guarantees for both the secrecy of the input and of the computation being performed. In this work, we further develop this idea of computing over encrypted data, to propose a multiparty delegated quantum computing protocol in the measurement-based quantum computing framework. We prove the security of the protocol against a dishonest server and against dishonest clients, under the assumption of common classical cryptographic constructions.

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