rmmc - pvc:一个多客户端可复用的可验证计算协议

IF 0.4 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS
Gael Marcadet, P. Lafourcade, Léo Robert
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引用次数: 1

摘要

对不受信任的服务器执行的计算的验证是委托计算的基础,特别是在输入由不同方提供的多客户机设置中。假设客户机之间有一个共同的秘密,那么乱码电路提供了一个吸引人的特性,可以确保不受信任的服务器计算结果的正确性,同时保持输入和函数的私密性。然而,这种核查只能保证一次。基于多密钥同态加密(MKHE)的概念,我们提出了rmmc - pvc一种多客户端可验证计算协议,能够验证不受信任的服务器对多个客户端提供的输入(编码为乱码电路)执行的计算的正确性。多亏了MKHE,乱码电路可以重复使用任意次数。此外,每个客户端都可以自己验证计算结果。与单键FHE方案相比,rmmc - pvc中的MKHE使用允许减少服务器的工作负载,从而减少客户端的响应延迟。它还加强了输入的私密性,这些输入由不同的客户机提供。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
RMC-PVC: A Multi-Client Reusable Verifiable Computation Protocol
The verification of computations performed by an untrusted server is a cornerstone for delegated computations, especially in multi-clients setting where inputs are provided by different parties. Assuming a common secret between clients, a garbled circuit offers the attractive property to ensure the correctness of a result computed by the untrusted server while keeping the input and the function private. Yet, this verification can be guaranteed only once. Based on the notion of multi-key homomorphic encryption (MKHE), we propose RMC-PVC a multi-client verifiable computation protocol, able to verify the correctness of computations performed by an untrusted server for inputs (encoded for a garbled circuit) provided by multiple clients. Thanks to MKHE, the garbled circuit is reusable an arbitrary number of times. In addition, each client can verify the computation by its own. Compared to a single-key FHE scheme, the MKHE usage in RMC-PVC allows to reduce the workload of the server and thus the response delay for the client. It also enforce the privacy of inputs, which are provided by different clients.
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来源期刊
Applied Computing Review
Applied Computing Review COMPUTER SCIENCE, INFORMATION SYSTEMS-
自引率
40.00%
发文量
8
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