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摘要:
Blind quantum computation (BQC) studies the problem of how a client with lim-ited quantum computation power delegates a computing task to a quantum server while keeping his input, output and algorithm private. To resist attacks from the lack of identity authentication in BQC protocols, we propose a multiparty BQC pro-tocol with deterministic mutual identity authentication. For concreteness, a variant of measurement-device-independent quantum key distribution (MDI-QKD) is first pre-sented, and based on this, a method of deterministically generating the authentication keys of the registered client and the designated server is presented in the registration phase. Then a deterministic mutual identity authentication protocol is proposed to authenticate the identities of the registered client and the designated server by using the variant of MDI-QKD. Finally, in the blind quantum computation phase, the registered client can delegate a computing task to the designated server. Compared with existing BQC protocols with mutual identity authentication, our proposal works in a deterministic and efficient way. Furthermore, the proposed mutual identity authentication method can be applied in other quantum cryptography protocols, thus providing a valuable way for the construction of multiparty quantum communication protocols with identity authentication. (c) 2022 Elsevier B.V. All rights reserved.
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来源 :
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
ISSN: 0378-4371
年份: 2022
卷: 609
3 . 3
JCR@2022
3 . 3 0 0
JCR@2022
ESI学科: PHYSICS;
ESI高被引阀值:41
JCR分区:2
中科院分区:2
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