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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2407.19871cs.CRcs.NI
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基于环面的快速隐私位置信息检索

Fast Private Location-based Information Retrieval Over the Torus

Joon Soo Yoo, Mi Yeon Hong, Ji Won Heo, Kang Hoon Lee, Ji Won Yoon

AI总结:

针对位置服务中的隐私风险,提出基于TFHE同态加密方案的LocPIR框架,利用非多项式求值实现高效比较操作,在保护用户位置隐私的同时具备低交互、低内存开销和高吞吐量,并通过COVID-19警报模型验证了其实用性。

摘要:

位置服务提供巨大便利,但也带来重大隐私风险。为此,我们提出LocPIR,一个使用同态加密(HE)的新框架,具体采用TFHE方案,以在从公共云检索数据时保护用户位置隐私。该系统利用TFHE在非多项式求值方面的专长,这对比较操作至关重要。LocPIR展示出最小的客户端-服务器交互、降低的内存开销和高效的吞吐量。性能测试证实了其计算速度,使其成为实际场景的可行方案,并通过应用于COVID-19警报模型予以证明。因此,LocPIR有效解决了位置服务中的隐私问题,实现了从公共云的安全数据共享。

英文摘要:

Location-based services offer immense utility, but also pose significant privacy risks. In response, we propose LocPIR, a novel framework using homomorphic encryption (HE), specifically the TFHE scheme, to preserve user location privacy when retrieving data from public clouds. Our system employs TFHE's expertise in non-polynomial evaluations, crucial for comparison operations. LocPIR showcases minimal client-server interaction, reduced memory overhead, and efficient throughput. Performance tests confirm its computational speed, making it a viable solution for practical scenarios, demonstrated via application to a COVID-19 alert model. Thus, LocPIR effectively addresses privacy concerns in location-based services, enabling secure data sharing from the public cloud.

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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