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Local Differential Privacy (LDP), a robust privacy-protection model, is widely adopted in the Industrial Internet of Things (IIoT) due to its lightweight, decentralized, and scalable. However, its perturbation-based privacy-protection…

Cryptography and Security · Computer Science 2025-05-14 Lisha Shuai , Shaofeng Tan , Nan Zhang , Jiamin Zhang , Min Zhang , Xiaolong Yang

Local Differential Privacy (LDP) protocols enable an untrusted server to perform privacy-preserving, federated data analytics. Various LDP protocols have been developed for different types of data such as categorical data, numerical data,…

Cryptography and Security · Computer Science 2021-11-25 Yongji Wu , Xiaoyu Cao , Jinyuan Jia , Neil Zhenqiang Gong

The distributed nature of local differential privacy (LDP) invites data poisoning attacks and poses unforeseen threats to the underlying LDP-supported applications. In this paper, we propose a comprehensive mitigation framework for popular…

Cryptography and Security · Computer Science 2025-06-18 Xiaolin Li , Ninghui Li , Boyang Wang , Wenhai Sun

Local differential privacy (LDP) provides a way for an untrusted data collector to aggregate users' data without violating their privacy. Various privacy-preserving data analysis tasks have been studied under the protection of LDP, such as…

Cryptography and Security · Computer Science 2024-07-01 Wei Tong , Haoyu Chen , Jiacheng Niu , Sheng Zhong

Local Differential Privacy (LDP) has been widely adopted to protect user privacy in decentralized data collection. However, recent studies have revealed that LDP protocols are vulnerable to data poisoning attacks, where malicious users…

Cryptography and Security · Computer Science 2025-03-07 Ting-Wei Liao , Chih-Hsun Lin , Yu-Lin Tsai , Takao Murakami , Chia-Mu Yu , Jun Sakuma , Chun-Ying Huang , Hiroaki Kikuchi

Local Differential Privacy (LDP) protocols enable an untrusted data collector to perform privacy-preserving data analytics. In particular, each user locally perturbs its data to preserve privacy before sending it to the data collector, who…

Cryptography and Security · Computer Science 2020-12-10 Xiaoyu Cao , Jinyuan Jia , Neil Zhenqiang Gong

Local differential privacy (LDP) involves users perturbing their inputs to provide plausible deniability of their data. However, this also makes LDP vulnerable to poisoning attacks. In this paper, we first introduce novel poisoning attacks…

Cryptography and Security · Computer Science 2025-07-01 Pei Zhan , Peng Tang , Yangzhuo Li , Puwen Wei , Shanqing Guo

Trajectory data, which tracks movements through geographic locations, is crucial for improving real-world applications. However, collecting such sensitive data raises considerable privacy concerns. Local differential privacy (LDP) offers a…

Cryptography and Security · Computer Science 2025-03-11 I-Jung Hsu , Chih-Hsun Lin , Chia-Mu Yu , Sy-Yen Kuo , Chun-Ying Huang

Local Differential Privacy (LDP) provides provable privacy protection for data collection without the assumption of the trusted data server. In the real-world scenario, different data have different privacy requirements due to the distinct…

Cryptography and Security · Computer Science 2020-02-25 Xiaolan Gu , Ming Li , Li Xiong , Yang Cao

Federated learning (FL) combined with local differential privacy (LDP) enables privacy-preserving model training across decentralized data sources. However, the decentralized data-management paradigm leaves LDPFL vulnerable to participants…

Cryptography and Security · Computer Science 2025-09-08 Zijian Wang , Wei Tong , Tingxuan Han , Haoyu Chen , Tianling Zhang , Yunlong Mao , Sheng Zhong

LDP (Local Differential Privacy) has recently attracted much attention as a metric of data privacy that prevents the inference of personal data from obfuscated data in the local model. However, there are scenarios in which the adversary…

Cryptography and Security · Computer Science 2021-12-21 Takao Murakami , Kenta Takahashi

Collecting and analyzing massive data generated from smart devices have become increasingly pervasive in crowdsensing, which are the building blocks for data-driven decision-making. However, extensive statistics and analysis of such data…

Cryptography and Security · Computer Science 2021-01-29 Teng Wang , Xuefeng Zhang , Jingyu Feng , Xinyu Yang

Advanced adversarial attacks such as membership inference and model memorization can make federated learning (FL) vulnerable and potentially leak sensitive private data. Local differentially private (LDP) approaches are gaining more…

Cryptography and Security · Computer Science 2022-08-04 M. A. P. Chamikara , Dongxi Liu , Seyit Camtepe , Surya Nepal , Marthie Grobler , Peter Bertok , Ibrahim Khalil

Although local differential privacy (LDP) protects individual users' data from inference by an untrusted data curator, recent studies show that an attacker can launch a data poisoning attack from the user side to inject carefully-crafted…

Cryptography and Security · Computer Science 2023-03-13 Xiaoguang Li , Ninghui Li , Wenhai Sun , Neil Zhenqiang Gong , Hui Li

Locally differentially private (LDP) graph analysis allows private analysis on a graph that is distributed across multiple users. However, such computations are vulnerable to data poisoning attacks where an adversary can skew the results by…

Cryptography and Security · Computer Science 2025-09-11 Jacob Imola , Amrita Roy Chowdhury , Kamalika Chaudhuri

Local Differential Privacy (LDP) enables massive data collection and analysis while protecting end users' privacy against untrusted aggregators. It has been applied to various data types (e.g., categorical, numerical, and graph data) and…

Cryptography and Security · Computer Science 2025-05-05 Xinyu Li , Xuebin Ren , Shusen Yang , Liang Shi , Chia-Mu Yu

The rapidly expanding number of Internet of Things (IoT) devices is generating huge quantities of data, but the data privacy and security exposure in IoT devices, especially in the automatic driving system. Federated learning (FL) is a…

Cryptography and Security · Computer Science 2022-09-15 Jiayin Li , Wenzhong Guo , Xingshuo Han , Jianping Cai , Ximeng Liu

Local Differential Privacy (LDP) offers strong privacy protection, especially in settings in which the server collecting the data is untrusted. However, designing LDP mechanisms that achieve an optimal trade-off between privacy, utility and…

Cryptography and Security · Computer Science 2026-03-20 Héber H. Arcolezi , Sébastien Gambs

The rise in IoT-driven distributed data analytics, coupled with increasing privacy concerns, has led to a demand for effective privacy-preserving and federated data collection/model training mechanisms. In response, approaches such as…

Cryptography and Security · Computer Science 2025-01-28 Norrathep Rattanavipanon , Ivan De Oliveira Nunes

In recent years, local differential privacy (LDP) has emerged as a technique of choice for privacy-preserving data collection in several scenarios when the aggregator is not trustworthy. LDP provides client-side privacy by adding noise at…

Machine Learning · Statistics 2021-10-28 Tejas Kulkarni , Joonas Jälkö , Samuel Kaski , Antti Honkela
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