信息安全研究2025，Vol.11Issue(2)：107-114,8.DOI:10.12379/j.issn.2096-1057.2025.02.02
基于地理不可区分性且WiFi可灵活部署的室内定位安全方案
Indoor Localization Security Scheme Based on Geographic Indistinguishability and Flexible WiFi Deployment
摘要
Abstract
In indoor localization services,WiFi fingerprinting technology has received widespread attention due to its extensive coverage and high localization accuracy.However,for the online phase of location query,the user's personal sensitive information is vulnerable to malicious attacks resulting in location privacy leakage.Existing WiFi fingerprint-based indoor positioning technologies primarily focus on single flat surfaces within indoor environments,which restricts the flexibility of WiFi deployment.When WiFi is deployed in multi-dimensional scenarios,addressing spatial location privacy issues becomes imperative.In this paper,a WiFi fingerprinting indoor localization privacy protection scheme based on geographic indistinguishability is proposed,in which the user generates a new received signal strength vector by using his own received signal strength and sends the obtained data to the location service provider through noise obfuscation,and introduces a digital signature technique to ensure that the client's identity is not forged before obfuscating the position to be sent to the location service provider to achieve localization.Experimental results based on the simulation experimental platform show that the new scheme supports flexible deployment of WiFi,and is able to realize high-precision localization for the first time in the case of flexible deployment of 12 WiFi access points with guaranteed localization error of less than 1 m while protecting location privacy.关键词
WiFi指纹室内定位/位置服务/隐私保护/差分隐私/地理不可区分性Key words
WiFi fingerprint indoor localization/location-based service/privacy protection/diff-erential privacy/geographic indistinguishability分类
信息技术与安全科学引用本文复制引用
杜昊睿,张应辉,李琦..基于地理不可区分性且WiFi可灵活部署的室内定位安全方案[J].信息安全研究,2025,11(2):107-114,8.基金项目
国家自然科学基金项目(62072369,62072371) （62072369,62072371）
江苏省高等学校基础科学(自然科学)研究项目(22KJB520029) （自然科学）
陕西省技术创新引导计划基金资助项目(2023-YD-CGZH-31) （2023-YD-CGZH-31）
陕西省重点研发计划项目(2020ZDLGY06-02,2020ZDLGX08-04) （2020ZDLGY06-02,2020ZDLGX08-04）
陕西高校青年创新团队支持计划项目 （）
