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Emerging 5G millimeter-wave and sub-6 GHz networks enable high-accuracy indoor localization, but security and privacy vulnerabilities pose serious challenges. In this paper, we identify and address threats including location spoofing and…

密码学与安全 · 计算机科学 2025-05-26 Ildi Alla , Valeria Loscri

The main premise of federated learning (FL) is that machine learning model updates are computed locally to preserve user data privacy. This approach avoids by design user data to ever leave the perimeter of their device. Once the updates…

机器学习 · 计算机科学 2023-09-15 Simon Queyrut , Valerio Schiavoni , Pascal Felber

To operate in real-world high-stakes environments, deep learning systems have to endure noises that have been continuously thwarting their robustness. Data-end defense, which improves robustness by operations on input data instead of…

计算机视觉与模式识别 · 计算机科学 2022-04-14 Jiakai Wang , Zixin Yin , Pengfei Hu , Aishan Liu , Renshuai Tao , Haotong Qin , Xianglong Liu , Dacheng Tao

Distributed Denial-of-Service (DDoS) attacks exhaust resources, leaving a server unavailable to legitimate clients. The Domain Name System (DNS) is a frequent target of DDoS attacks. Since DNS is a critical infrastructure service,…

密码学与安全 · 计算机科学 2022-09-16 A S M Rizvi , Jelena Mirkovic , John Heidemann , Wesley Hardaker , Robert Story

While collaborative systems provide convenience to our lives, they also face many security threats. One of them is the Low-rate Distributed Denial-of-Service (LDDoS) attack, which is a worthy concern. Unlike volumetric DDoS attacks that…

密码学与安全 · 计算机科学 2023-06-28 Tianyang Cai , Yuqi Li , Tao Jia , Leo Yu Zhang , Zheng Yang

As deep neural networks (DNNs) have become increasingly important and popular, the robustness of DNNs is the key to the safety of both the Internet and the physical world. Unfortunately, some recent studies show that adversarial examples,…

计算机视觉与模式识别 · 计算机科学 2019-06-18 Yifan Ding , Liqiang Wang , Huan Zhang , Jinfeng Yi , Deliang Fan , Boqing Gong

DoS and DDoS attacks have been growing in size and number over the last decade and existing solutions to mitigate these attacks are in general inefficient. Compared to other types of malicious cyber attacks, DoS and DDoS attacks are…

机器学习 · 计算机科学 2021-05-17 Eirik Molde Bårli , Anis Yazidi , Enrique Herrera Viedma , Hårek Haugerud

In this work we show that Tor is vulnerable to app deanonymization attacks on Android devices through network traffic analysis. For this purpose, we describe a general methodology for performing an attack that allows to deanonymize the apps…

密码学与安全 · 计算机科学 2019-01-15 Emanuele Petagna , Giuseppe Laurenza , Claudio Ciccotelli , Leonardo Querzoni

Deep learning (DL) offers potential improvements throughout the CAD tool-flow, one promising application being lithographic hotspot detection. However, DL techniques have been shown to be especially vulnerable to inference and training time…

机器学习 · 计算机科学 2020-04-28 Kang Liu , Benjamin Tan , Gaurav Rajavendra Reddy , Siddharth Garg , Yiorgos Makris , Ramesh Karri

A distributed denial-of-service (DDoS) attack can flood a victim site with malicious traffic, causing service disruption or even complete failure. Public-access sites like amazon or ebay are particularly vulnerable to such attacks, because…

网络与互联网体系结构 · 计算机科学 2012-10-26 Katerina J. Argyraki , David R. Cheriton

Deep Neural Networks (DNNs) have been shown to be vulnerable against adversarial examples, which are data points cleverly constructed to fool the classifier. Such attacks can be devastating in practice, especially as DNNs are being applied…

密码学与安全 · 计算机科学 2018-01-30 Linh Nguyen , Sky Wang , Arunesh Sinha

Tor users are vulnerable to deanonymization by an adversary that can observe some Tor relays or some parts of the network. We demonstrate that previous network-aware path-selection algorithms that propose to solve this problem are…

密码学与安全 · 计算机科学 2017-01-30 Aaron Johnson , Rob Jansen , Aaron D. Jaggard , Joan Feigenbaum , Paul Syverson

Desktops and laptops can be maliciously exploited to violate privacy. In this paper, we consider the daily battle between the passive attacker who is targeting a specific user against a user that may be adversarial opponent. In this…

密码学与安全 · 计算机科学 2020-07-21 Amit Dvir , Yehonatan Zion , Jonathan Muehlstein , Ofir Pele , Chen Hajaj , Ran Dubin

Most machine learning applications rely on centralized learning processes, opening up the risk of exposure of their training datasets. While federated learning (FL) mitigates to some extent these privacy risks, it relies on a trusted…

机器学习 · 计算机科学 2024-09-18 Georgios Syros , Gokberk Yar , Simona Boboila , Cristina Nita-Rotaru , Alina Oprea

Defenses against security threats have been an interest of recent studies. Recent works have shown that it is not difficult to attack a natural language processing (NLP) model while defending against them is still a cat-mouse game. Backdoor…

密码学与安全 · 计算机科学 2022-05-31 Sangeet Sagar , Abhinav Bhatt , Abhijith Srinivas Bidaralli

Federated learning (FL) is a machine learning (ML) approach that allows the use of distributed data without compromising personal privacy. However, the heterogeneous distribution of data among clients in FL can make it difficult for the…

机器学习 · 计算机科学 2023-03-07 Thuy Dung Nguyen , Tuan Nguyen , Phi Le Nguyen , Hieu H. Pham , Khoa Doan , Kok-Seng Wong

As data are increasingly being stored in different silos and societies becoming more aware of data privacy issues, the traditional centralized training of artificial intelligence (AI) models is facing efficiency and privacy challenges.…

密码学与安全 · 计算机科学 2022-01-20 Lingjuan Lyu , Han Yu , Xingjun Ma , Chen Chen , Lichao Sun , Jun Zhao , Qiang Yang , Philip S. Yu

Recent works have shown that deep neural networks are vulnerable to adversarial examples that find samples close to the original image but can make the model misclassify. Even with access only to the model's output, an attacker can employ…

机器学习 · 计算机科学 2023-10-03 Quang H. Nguyen , Yingjie Lao , Tung Pham , Kok-Seng Wong , Khoa D. Doan

Deep neural networks (DNNs) are increasingly used in critical applications such as identity authentication and autonomous driving, where robustness against adversarial attacks is crucial. These attacks can exploit minor perturbations to…

机器学习 · 计算机科学 2024-08-21 Qiao Li , Cong Wu , Jing Chen , Zijun Zhang , Kun He , Ruiying Du , Xinxin Wang , Qingchuang Zhao , Yang Liu

Deep neural networks (DNNs) are vulnerable to backdoor attack, which does not affect the network's performance on clean data but would manipulate the network behavior once a trigger pattern is added. Existing defense methods have greatly…

机器学习 · 计算机科学 2025-04-08 Min Liu , Alberto Sangiovanni-Vincentelli , Xiangyu Yue