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arXiv 2103.08514cs.CR
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具有外部决策者的多方私有集运算

Multi-party Private Set Operations with an External Decider

Sara Ramezanian, Tommi Meskanen, Valtteri Niemi

摘要:

私有集操作(PSO)协议涉及至少两方及其私有输入集。该协议的目标是让各方在其输入集上学习集合操作的输出,即集合交集,而不会泄露关于不在输出集中的项目的任何信息。通常情况下,集合运算的结果只向参与方而非其他任何人显示。然而,在PSO的许多应用领域中,集合运算的结果应该由没有输入集合的外部参与者学习。我们称这个参与者为决策者。在本文中,我们提出了新的变种的多方粒子群算法,其中有一个决策者谁得到的结果。各方都希望决策者有一个私人集合。其他方既不知道这个结果,也不知道关于这个协议的任何其他内容。此外,我们提出了一个通用的解决方案的PSO问题。

英文摘要:

A Private Set Operation (PSO) protocol involves at least two parties with their private input sets. The goal of the protocol is for the parties to learn the output of a set operation, i.e. set intersection, on their input sets, without revealing any information about the items that are not in the output set. Commonly, the outcome of the set operation is revealed to parties and no-one else. However, in many application areas of PSO the result of the set operation should be learned by an external participant whom does not have an input set. We call this participant the decider. In this paper, we present new variants of multi-party PSO, where there is a decider who gets the result. All parties expect the decider have a private set. Other parties neither learn this result, nor anything else about this protocol. Moreover, we present a generic solution to the problem of PSO.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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