Renke He, Lingli Chen, Qin Li, Xiaoqing Tan and Lv Chen
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引用次数: 0
摘要
量子同态加密(QHE)可以直接对加密数据进行计算,而无需事先解密。此外,还需要提供另一个可验证性属性,即客户端应验证评估结果是否正确。然而,大多数现有的 QHE 方案都没有考虑到这一点,只是假设服务器是诚实的。在本文中,我们提出了一种可验证的 QHE(vQHE)方案,通过使用与服务器不可区分的不同类型的电路,客户端可以通过验证测试电路的结果来检测服务器是否诚实。此外,通过设计小工具,以非交互方式实现和测试所用电路的 T 门和 H 门,拟议的 vQHE 方案在评估过程中不需要交互。因此,拟议的 vQHE 方案有可能使客户更愿意在未来的量子云环境中使用它来保护他们的私人数据。
Verifiable quantum homomorphic encryption based on garbled evaluation
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 did not consider it and only assumed 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.
期刊介绍:
Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics.
Quantum Science and Technology is a new multidisciplinary, electronic-only journal, devoted to publishing research of the highest quality and impact covering theoretical and experimental advances in the fundamental science and application of all quantum-enabled technologies.