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Differentially Private (DP) data release is a promising technique to disseminate data without compromising the privacy of data subjects. However the majority of prior work has focused on scenarios where a single party owns all the data. In…

Cryptography and Security · Computer Science 2022-06-22 Ruihan Wu , Xin Yang , Yuanshun Yao , Jiankai Sun , Tianyi Liu , Kilian Q. Weinberger , Chong Wang

In the paradigm of decentralized learning, a group of agents collaborates to learn a global model using distributed datasets without a central server. However, due to the heterogeneity of the local data across the different agents, learning…

Machine Learning · Computer Science 2025-04-15 Lina Wang , Yunsheng Yuan , Chunxiao Wang , Feng Li

Intrusion Detection Systems (IDS) have been the industry standard for securing IoT networks against known attacks. To increase the capability of an IDS, researchers proposed the concept of blockchain-based Collaborative-IDS (CIDS), wherein…

Cryptography and Security · Computer Science 2022-02-09 Guntur Dharma Putra , Volkan Dedeoglu , Abhinav Pathak , Salil S. Kanhere , Raja Jurdak

The Internet of Things (IoT) field has gained much attention from industry and academia, being the main subject for numerous research and development projects. Frequently, the dense amount of generated data from IoT applications is sent to…

With the Internet of Things (IoT), Things are expected to live in different "domains" and "contexts" during their lifetime. Information generated by and associated with Things should be manageable by multiple, diverse stakeholders…

Computers and Society · Computer Science 2019-01-31 Nikos Fotiou , George C. Polyzos

The rise of connected personal devices together with privacy concerns call for machine learning algorithms capable of leveraging the data of a large number of agents to learn personalized models under strong privacy requirements. In this…

Machine Learning · Computer Science 2018-02-20 Aurélien Bellet , Rachid Guerraoui , Mahsa Taziki , Marc Tommasi

We consider a distributed optimal power flow formulated as an optimization problem that maximizes a nondifferentiable concave function. Solving such a problem by the existing distributed algorithms can lead to data privacy issues because…

Optimization and Control · Mathematics 2021-10-13 Minseok Ryu , Kibaek Kim

In recent years, there is an emerging trend that some computing services are moving from cloud to the edge of the networks. Compared to cloud computing, edge computing can provide services with faster response, lower expense, and more…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-06-30 Jinyue Song , Tianbo Gu , Yunjie Ge , Prasant Mohapatra

The increased application of machine learning (ML) in sensitive domains requires protecting the training data through privacy frameworks, such as differential privacy (DP). DP requires to specify a uniform privacy level $\varepsilon$ that…

Machine Learning · Computer Science 2024-01-31 Krishna Acharya , Franziska Boenisch , Rakshit Naidu , Juba Ziani

Privacy-preservation policies are guidelines formulated to protect data providers private data. Previous privacy-preservation methodologies have addressed privacy in which data are permanently stored in repositories and disconnected from…

Cryptography and Security · Computer Science 2024-08-22 Michael Mireku Kwakye

Local Differential Privacy (LDP) protects user privacy from the data collector. LDP protocols have been increasingly deployed in the industry. A basic building block is frequency oracle (FO) protocols, which estimate frequencies of values.…

Cryptography and Security · Computer Science 2020-01-31 Tianhao Wang , Milan Lopuhaä-Zwakenberg , Zitao Li , Boris Skoric , Ninghui Li

Local Differential Privacy (LDP) protocols allow an aggregator to obtain population statistics about sensitive data of a userbase, while protecting the privacy of the individual users. To understand the tradeoff between aggregator utility…

Cryptography and Security · Computer Science 2019-10-18 Milan Lopuhaä-Zwakenberg , Boris Škorić , Ninghui Li

The various applications using Distributed Ledger Technologies (DLT) or blockchains, have led to the introduction of a new `marketplace' where multiple types of digital assets may be exchanged. As each blockchain is designed to support…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-12-21 Antonio Fernandez Anta , Chryssis Georgiou , Nicolas Nicolaou

Local differential privacy (LPD) is a distributed variant of differential privacy (DP) in which the obfuscation of the sensitive information is done at the level of the individual records, and in general it is used to sanitize data that are…

Cryptography and Security · Computer Science 2018-05-04 Mário S. Alvim , Konstantinos Chatzikokolakis , Catuscia Palamidessi , Anna Pazii

The rapid expansion of the Internet of Things (IoT) and smart home ecosystems has led to a fragmented landscape of user data management across consumer electronics (CE) such as Smart TVs, gaming consoles, and set-top boxes. Current…

Cryptography and Security · Computer Science 2026-04-10 Aditya Sabbineni , Pravin Nagare , Devendra Dahiphale , Preetam Dedu , Willison Lopes

Split learning (SL) aims to protect user data privacy by distributing deep models between client-server and keeping private data locally. Only processed or `smashed' data can be transmitted from the clients to the server during the SL…

Cryptography and Security · Computer Science 2024-10-17 Ngoc Duy Pham , Khoa Tran Phan , Naveen Chilamkurti

We present a logical framework that formally models how a given private information P stored on a given database D, can get captured progressively, by an agent/adversary querying the database repeatedly. Named DLTTS (Distributed Labeled…

Computation and Language · Computer Science 2022-06-22 Siva Anantharaman , Sabine Frittella , Benjamin Nguyen

Evaluating the usefulness of data before purchase is essential when obtaining data for high-quality machine learning models, yet both model builders and data providers are often unwilling to reveal their proprietary assets. We present…

Cryptography and Security · Computer Science 2026-04-21 Wan Ki Wong , Sahel Torkamani , Michele Ciampi , Rik Sarkar

Satoshi Nakamoto's Blockchain allows to build publicly verifiable and almost immutable ledgers, but sometimes privacy has to be factored in. In this work an original protocol is presented that allows sensitive data to be stored on a ledger…

Cryptography and Security · Computer Science 2020-07-10 Riccardo Longo , Massimiliano Sala

The popularization of intelligent healthcare devices and big data analytics significantly boosts the development of smart healthcare networks (SHNs). To enhance the precision of diagnosis, different participants in SHNs share health data…

Cryptography and Security · Computer Science 2023-06-30 Youyang Qu , Lichuan Ma , Wenjie Ye , Xuemeng Zhai , Shui Yu , Yunfeng Li , David Smith