arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2405.18052cs.ITmath.IT
收藏

代数几何码用于私有信息检索中的跨子空间对齐

Algebraic Geometry Codes for Cross-Subspace Alignment in Private Information Retrieval

Okko Makkonen, David Karpuk, Camilla Hollanti

AI总结:

本文提出基于代数几何码的跨子空间对齐新框架,推广了原有CSA码,在共谋服务器场景下实现更灵活的场大小与检索速率权衡,并覆盖原始方案不适用的情况。

摘要:

提出了一种新的框架,用于在来自共谋服务器的安全且私有的信息检索(PIR)中实现干扰对齐,该框架推广了Jia、Sun和Jafar提出的原始跨子空间对齐(CSA)码。该通用方案基于代数几何码构建,并给出了在亏格为零和一曲线上的复制存储的显式构造。研究表明,所提出的方案在场大小、文件大小、共谋服务器数量和服务器总数之间提供了有趣的权衡。当场大小固定时,在某些情况下,这转化为比原始方案更高的检索速率。此外,新方案在原始方案不存在的某些情况下也存在。

英文摘要:

A new framework for interference alignment in secure and private information retrieval (PIR) from colluding servers is proposed, generalizing the original cross-subspace alignment (CSA) codes proposed by Jia, Sun, and Jafar. The general scheme is built on algebraic geometry codes and explicit constructions with replicated storage are given over curves of genus zero and one. It is shown that the proposed scheme offers interesting tradeoffs between the field size, file size, number of colluding servers, and the total number of servers. When the field size is fixed, this translates in some cases to higher retrieval rates than those of the original scheme. In addition, the new schemes exist also in cases where the original ones do not.

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。

↑