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Firewalls have long been in use to protect local networks from threats of the larger Internet. Although firewalls are effective in preventing attacks initiated from outside, they are vulnerable to insider threats, e.g., malicious insiders…

密码学与安全 · 计算机科学 2018-10-04 Ken Goss , Wei Jiang

Face recognition service has been used in many fields and brings much convenience to people. However, once the user's facial data is transmitted to a service provider, the user will lose control of his/her private data. In recent years,…

密码学与安全 · 计算机科学 2023-11-14 Yuwen Pu , Jiahao Chen , Jiayu Pan , Hao li , Diqun Yan , Xuhong Zhang , Shouling Ji

The foreseen growing role of outsourced machine learning services is raising concerns about the privacy of user data. Several technical solutions are being proposed to address the issue. Hardware security modules in cloud data centres…

密码学与安全 · 计算机科学 2019-10-07 Marc Joye , Fabien A. P. Petitcolas

Monitoring location updates from mobile users has important applications in many areas, ranging from public safety and national security to social networks and advertising. However, sensitive information can be derived from movement…

密码学与安全 · 计算机科学 2020-08-31 Gabriel Ghinita , Kien Nguyen , Mihai Maruseac , Cyrus Shahabi

Open communication over the Internet poses a serious threat to countries with repressive regimes, leading them to develop and deploy network-based censorship mechanisms within their networks. Existing censorship circumvention systems face…

密码学与安全 · 计算机科学 2015-03-20 Amir Houmansadr , Thomas Riedl , Nikita Borisov , Andrew Singer

Privacy-preserving data processing refers to the methods and models that allow computing and analyzing sensitive data with a guarantee of confidentiality. As cloud computing and applications that rely on data continue to expand, there is an…

密码学与安全 · 计算机科学 2026-01-13 Gaurav Sarraf , Vibhor Pal

This paper studies the tradeoff in privacy and utility in a single-trial multi-terminal guessing (estimation) framework using a system model that is inspired by index coding. There are $n$ independent discrete sources at a data curator.…

信息论 · 计算机科学 2020-06-19 Yucheng Liu , Ni Ding , Parastoo Sadeghi , Thierry Rakotoarivelo

Online video streaming has evolved into an integral component of the contemporary Internet landscape. Yet, the disclosure of user requests presents formidable privacy challenges. As users stream their preferred online videos, their requests…

多媒体 · 计算机科学 2026-02-02 Xianzhi Zhang , Yipeng Zhou , Di Wu , Quan Z. Sheng , Miao Hu , Linchang Xiao

Talking-head generation has advanced rapidly with diffusion-based generative models, but training usually depends on centralized face-video and speech datasets, raising major privacy concerns. The problem is more acute for personalized…

密码学与安全 · 计算机科学 2026-04-10 Soumya Mazumdar , Vineet Kumar Rakesh , Tapas Samanta

Gossip protocols are widely used to disseminate information in massive peer-to-peer networks. These protocols are often claimed to guarantee privacy because of the uncertainty they introduce on the node that started the dissemination. But…

分布式、并行与集群计算 · 计算机科学 2020-08-05 Aurélien Bellet , Rachid Guerraoui , Hadrien Hendrikx

In federated learning (FL), a set of participants share updates computed on their local data with an aggregator server that combines updates into a global model. However, reconciling accuracy with privacy and security is a challenge to FL.…

密码学与安全 · 计算机科学 2022-11-22 Najeeb Moharram Jebreel , Josep Domingo-Ferrer , Alberto Blanco-Justicia , David Sanchez

Much of the recent excitement around decentralized finance (DeFi) comes from hopes that DeFi can be a secure, private, less centralized alternative to traditional finance systems. However, people moving to DeFi sites in hopes of improving…

密码学与安全 · 计算机科学 2023-02-07 Philipp Winter , Anna Harbluk Lorimer , Peter Snyder , Benjamin Livshits

The combination of smart home platforms and automation apps introduces much convenience to smart home users. However, this also brings the potential for privacy leakage. If a smart home platform is permitted to collect all the events of a…

密码学与安全 · 计算机科学 2019-02-15 Rixin Xu , Qiang Zeng , Liehuang Zhu , Haotian Chi , Mohsen Guizani

An infrastructure network is a self-organizing network which uses Access Point (AP) of wireless links that connecting one node with another. These nodes can communicate without using ad hoc, instead these nodes form an arbitrary topology…

网络与互联网体系结构 · 计算机科学 2013-07-15 K. Karnavel , M. Sakthivel , L. Karuppasamy

Text-to-image diffusion models have demonstrated remarkable capabilities in creating images highly aligned with user prompts, yet their proclivity for memorizing training set images has sparked concerns about the originality of the…

计算机视觉与模式识别 · 计算机科学 2025-04-28 Chen Chen , Daochang Liu , Mubarak Shah , Chang Xu

The problem of data exchange involves a source schema, a target schema and a set of mappings from transforming the data between the two schemas. We study the problem of data exchange in the presence of privacy restrictions on the source.…

数据库 · 计算机科学 2019-03-25 Angela Bonifati , Ugo Comignani , Efthymia Tsamoura

In IPFS content identifiers are constructed based on the item's data therefore the binding between an item's identifier and its data can be deterministically verified. Nevertheless, once an item is modified, its identifier also changes.…

密码学与安全 · 计算机科学 2021-05-19 Nikos Fotiou , Vasilios A. Siris , George C. Polyzos

Imagine a group of citizens willing to collectively contribute their personal data for the common good to produce socially useful information, resulting from data analytics or machine learning computations. Sharing raw personal data with a…

密码学与安全 · 计算机科学 2021-12-24 Riad Ladjel , Nicolas Anciaux , Aurélien Bellet , Guillaume Scerri

Consensus is fundamental for distributed systems since it underpins key functionalities of such systems ranging from distributed information fusion, decision-making, to decentralized control. In order to reach an agreement, existing…

最优化与控制 · 数学 2018-12-27 Minghao Ruan , Huan Gao , Yongqiang Wang

Inherent communication noises have the potential to preserve privacy for wireless federated learning (WFL) but have been overlooked in digital communication systems predominantly using floating-point number standards, e.g., IEEE 754, for…

机器学习 · 计算机科学 2025-06-19 Weicai Li , Tiejun Lv , Xiyu Zhao , Xin Yuan , Wei Ni
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