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Blockchains provide environments where parties can interact transparently and securely peer-to-peer without needing a trusted third party. Parties can trust the integrity and correctness of transactions and the verifiable execution of…

密码学与安全 · 计算机科学 2023-03-02 Simon Tschirner , Shashank Shekher Tripathi , Mathias Roeper , Markus M. Becker , Volker Skwarek

In this paper, we propose privacy-preserving methods with a secret key for convolutional neural network (CNN)-based models in speech processing tasks. In environments where untrusted third parties, like cloud servers, provide CNN-based…

音频与语音处理 · 电气工程与系统科学 2024-08-08 Shoko Niwa , Sayaka Shiota , Hitoshi Kiya

Data analytics (such as association rule mining and decision tree mining) can discover useful statistical knowledge from a big data set. But protecting the privacy of the data provider and the data user in the process of analytics is a…

量子物理 · 物理学 2017-02-16 Shenggang Ying , Mingsheng Ying , Yuan Feng

With the rapid increase in computing, storage and networking resources, data is not only collected and stored, but also analyzed. This creates a serious privacy problem which often inhibits the use of this data. In this chapter, we…

密码学与安全 · 计算机科学 2016-10-10 Yuan Hong , Jaideep Vaidya , Nicholas Rizzo , Qi Liu

Preserving the privacy of individual databases when carrying out statistical calculations has a long history in statistics and had been the focus of much recent attention in machine learning In this paper, we present a protocol for…

密码学与安全 · 计算机科学 2011-12-01 Rob Hall , Yuval Nardi , Stephen Fienberg

Dynamic searchable symmetric encryption (DSSE) is a useful cryptographic tool in encrypted cloud storage. However, it has been reported that DSSE usually suffers from file-injection attacks and content leak of deleted documents. To mitigate…

密码学与安全 · 计算机科学 2019-05-22 Cong Zuo , Shi-Feng Sun , Joseph K. Liu , Jun Shao , Josef Pieprzyk

We study the problem of providing privacy-preserving access to an outsourced honest-but-curious data repository for a group of trusted users. We show that such privacy-preserving data access is possible using a combination of probabilistic…

密码学与安全 · 计算机科学 2011-05-23 Michael T. Goodrich , Michael Mitzenmacher , Olga Ohrimenko , Roberto Tamassia

Searchable symmetric encryption (SSE) for multi-owner model draws much attention as it enables data users to perform searches over encrypted cloud data outsourced by data owners. However, implementing secure and precise query, efficient…

密码学与安全 · 计算机科学 2019-08-13 Kai Chen , Zhongrui Lin , Jian Wan , Lei Xu , Chungen Xu

Wireless Sensor Networks (WSNs) provide sensing and monitoring services by means of many tiny autonomous devices equipped with wireless radio transceivers. As WSNs are deployed on a large-scale and/or on long-term basis, not only…

密码学与安全 · 计算机科学 2009-05-14 Emiliano De Cristofaro , Xuhua Ding , Gene Tsudik

We consider a collaborative learning scenario in which multiple data-owners wish to jointly train a logistic regression model, while keeping their individual datasets private from the other parties. We propose COPML, a fully-decentralized…

机器学习 · 计算机科学 2020-11-05 Jinhyun So , Basak Guler , A. Salman Avestimehr

This paper studies how a system operator and a set of agents securely execute a distributed projected gradient-based algorithm. In particular, each participant holds a set of problem coefficients and/or states whose values are private to…

密码学与安全 · 计算机科学 2018-05-24 Yang Lu , Minghui Zhu

With the growing reliance on cloud services for large-scale data management, preserving the security and privacy of outsourced datasets has become increasingly critical. While encrypting data and queries can prevent direct content exposure,…

密码学与安全 · 计算机科学 2025-12-04 Zuan Wang , Juntao Lu , Jiazhuang Wu , Youliang Tian , Wei Song , Qiuxian Li , Duo Zhang

In this paper, we study the problem of privacy-preserving data sharing, wherein only a subset of the records in a database are sensitive, possibly based on predefined privacy policies. Existing solutions, viz, differential privacy (DP), are…

密码学与安全 · 计算机科学 2017-12-19 Stelios Doudalis , Ios Kotsogiannis , Samuel Haney , Ashwin Machanavajjhala , Sharad Mehrotra

We present protocols for multiparty data hiding of quantum information that implement all possible threshold access structures. Closely related to secret sharing, data hiding has a more demanding security requirement: that the data remain…

量子物理 · 物理学 2007-05-23 Patrick Hayden , Debbie Leung , Graeme Smith

Logistic regression (LR) is a widely used classification method for modeling binary outcomes in many medical data classification tasks. Research that collects and combines datasets from various data custodians and jurisdictions can…

机器学习 · 计算机科学 2021-05-17 Ali Reza Ghavamipour , Fatih Turkmen , Xiaoqian Jian

We present ORQ, a system that enables collaborative analysis of large private datasets using cryptographically secure multi-party computation (MPC). ORQ protects data against semi-honest or malicious parties and can efficiently evaluate…

密码学与安全 · 计算机科学 2025-09-17 Eli Baum , Sam Buxbaum , Nitin Mathai , Muhammad Faisal , Vasiliki Kalavri , Mayank Varia , John Liagouris

Outsourcing a relational database to the cloud offers several benefits, including scalability, availability, and cost-effectiveness. However, there are concerns about the confidentiality and security of the outsourced data. A general…

密码学与安全 · 计算机科学 2023-10-10 Johannes Koppenwallner , Erich Schikuta

When sharing sensitive relational databases with other parties, a database owner aims to (i) have privacy guarantees for the database entries, (ii) have liability guarantees (via fingerprinting) in case of unauthorized sharing of its…

密码学与安全 · 计算机科学 2022-03-08 Tianxi Ji , Erman Ayday , Emre Yilmaz , Pan Li

For better data availability and accessibility while ensuring data secrecy, organizations often tend to outsource their encrypted data to the cloud storage servers, thus bringing the challenge of keyword search over encrypted data. In this…

密码学与安全 · 计算机科学 2025-04-17 Nazatul Haque Sultan , Maryline Laurent , Vijay Varadharajan

As machine learning becomes a practice and commodity, numerous cloud-based services and frameworks are provided to help customers develop and deploy machine learning applications. While it is prevalent to outsource model training and…

密码学与安全 · 计算机科学 2018-07-16 Tianwei Zhang , Zecheng He , Ruby B. Lee