同态加密
可验证秘密共享
计算机科学
同态秘密共享
加密
量子
理论计算机科学
计算机安全
算术
数学
程序设计语言
物理
量子力学
集合(抽象数据类型)
作者
Renke He,Lingli Chen,Qin Li,Xiaoqing Tan,Chen Lv
出处
期刊:Quantum science and technology
[IOP Publishing]
日期:2024-09-13
标识
DOI:10.1088/2058-9565/ad7a9c
摘要
Abstract Quantum homomorphic encryption (QHE) can allow directly computation on the encrypted data without need to decrypt it in advance. It is also necessary to provide another property of verifiability that the client should verify whether the evaluation result is correct. However, most existing QHE schemes do not consider it and only assume servers to be honest. In this paper, we propose a verifiable QHE (vQHE) scheme by using different types of circuits indistinguishable to the server, where the client can detect whether the server is honest or not by verifying the results of test circuits. Furthermore, by designing the gadgets to implement and test T gates and H gates in a non-interactive way for the used circuits, the proposed vQHE scheme does not require interaction during the process of evaluation. Thus the proposed vQHE scheme has the potential to make clients prefer to use it for protecting their private data in future quantum cloud environments.
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