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Experimental Demonstration of Quantum Fully Homomorphic Encryption with Application in a Two-Party Secure Protocol

机译:在双方安全协议中应用量子完全同态加密的实验演示

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A fully homomorphic encryption system hides data from unauthorized parties while still allowing them to perform computations on the encrypted data. Aside from the straightforward benefit of allowing users to delegate computations to a more powerful server without revealing their inputs, a fully homomorphic cryptosystem can be used as a building block in the construction of a number of cryptographic functionalities. Designing such a scheme remained an open problem until 2009, decades after the idea was first conceived, and the past few years have seen the generalization of this functionality to the world of quantum machines. Quantum schemes prior to the one implemented here were able to replicate some features in particular use cases often associated with homomorphic encryption but lacked other crucial properties, for example, relying on continual interaction to perform a computation or leaking information about the encrypted data. We present the first experimental realization of a quantum fully homomorphic encryption scheme. To demonstrate the versatility of a a quantum fully homomorphic encryption scheme, we further present a toy two-party secure computation task enabled by our scheme.
机译:一个完全同性全的加密系统隐藏未经授权的各方的数据,同时仍允许它们在加密数据上执行计算。除了允许用户将计算委派给更强大的服务器的直接好处,在不显示其输入的情况下,可以将完全同性恋密码系统用作建筑物的构建块,以施加许多密码功能。设计这样的方案仍然是一个公开问题,直到2009年第一次构思之后,几十年来,过去几年已经看到了对量子机器世界的这种功能的概括。在此实现之前的量子方案能够复制通常与同性恋加密相关的用例中的一些特征,但缺少其他至关重要的属性,例如,依赖于持续交互来执行关于加密数据的计算或泄漏信息。我们介绍了量子完全均匀加密方案的第一次实验实现。为了展示量子完全同态加密方案的多功能性,我们进一步提出了我们的方案启用的玩具双方安全计算任务。

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