位置轨迹相关性差分隐私保护技术研究与进展

随着移动互联网、智能终端设备和 GPS 定位技术的普及应用, 产生了大量轨迹数据以应用于基于位置的服务. 然而, 具有时空相关性的行动轨迹可以体现或泄露单用户的个人信息或多用户之间的某些社会关系信息, 进一步导致严重的隐私泄露. 这些位置轨迹数据的共享和发布离不开隐私保护技术的支持, 而大多数隐私保护模型的安全性是基于一定的背景知识, 若背景知识已被攻击者掌握, 则无法提供完善的隐私保护. 差分隐私技术有效弥补这一缺陷, 并广泛应用于位置轨迹数据相关性隐私保护领域中. 本文首先介绍差分隐私、全局敏感度、噪声机制以及组合性质等相关概念; 其次系统地对基于差分隐私的位置轨迹相关性隐私保护技术进行了...

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Published inJournal of Cryptologic Research Vol. 10; no. 6; p. 1118
Main Authors Cheng-Yi, QIN, WU, Lei, Xiao-Chao, WEI, WANG, Hao, 秦呈旖, 吴磊, 魏晓超, 王皓
Format Journal Article
LanguageChinese
Published Beijing Chinese Association for Cryptologic Research, Journal of Cryptologic Research 01.01.2023
Subjects
Data correlation
Global positioning systems
GPS
Location based services
Noise sensitivity
Privacy
Trajectories
Online AccessGet full text
ISSN2097-4116
DOI10.13868/j.cnki.jcr.000661

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Abstract 随着移动互联网、智能终端设备和 GPS 定位技术的普及应用, 产生了大量轨迹数据以应用于基于位置的服务. 然而, 具有时空相关性的行动轨迹可以体现或泄露单用户的个人信息或多用户之间的某些社会关系信息, 进一步导致严重的隐私泄露. 这些位置轨迹数据的共享和发布离不开隐私保护技术的支持, 而大多数隐私保护模型的安全性是基于一定的背景知识, 若背景知识已被攻击者掌握, 则无法提供完善的隐私保护. 差分隐私技术有效弥补这一缺陷, 并广泛应用于位置轨迹数据相关性隐私保护领域中. 本文首先介绍差分隐私、全局敏感度、噪声机制以及组合性质等相关概念; 其次系统地对基于差分隐私的位置轨迹相关性隐私保护技术进行了研究与分析, 进一步地详细阐述了差分隐私模型下单条轨迹内相关性保护、两条不同轨迹之间相关性保护以及多条不同轨迹之间相关性保护在时间、空间以及时空方面的隐私保护方法; 最后, 在对现有方法对比分析的基础上, 提出了位置轨迹相关性隐私保护未来的重点研究发展方向.
AbstractList 随着移动互联网、智能终端设备和 GPS 定位技术的普及应用, 产生了大量轨迹数据以应用于基于位置的服务. 然而, 具有时空相关性的行动轨迹可以体现或泄露单用户的个人信息或多用户之间的某些社会关系信息, 进一步导致严重的隐私泄露. 这些位置轨迹数据的共享和发布离不开隐私保护技术的支持, 而大多数隐私保护模型的安全性是基于一定的背景知识, 若背景知识已被攻击者掌握, 则无法提供完善的隐私保护. 差分隐私技术有效弥补这一缺陷, 并广泛应用于位置轨迹数据相关性隐私保护领域中. 本文首先介绍差分隐私、全局敏感度、噪声机制以及组合性质等相关概念; 其次系统地对基于差分隐私的位置轨迹相关性隐私保护技术进行了研究与分析, 进一步地详细阐述了差分隐私模型下单条轨迹内相关性保护、两条不同轨迹之间相关性保护以及多条不同轨迹之间相关性保护在时间、空间以及时空方面的隐私保护方法; 最后, 在对现有方法对比分析的基础上, 提出了位置轨迹相关性隐私保护未来的重点研究发展方向.
Author 秦呈旖
Cheng-Yi, QIN
魏晓超
Xiao-Chao, WEI
王皓
WANG, Hao
WU, Lei
吴磊
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SubjectTerms Data correlation
Global positioning systems
GPS
Location based services
Noise sensitivity
Privacy
Trajectories
Title 位置轨迹相关性差分隐私保护技术研究与进展
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