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The shuffle model of Differential Privacy (DP) is an enhanced privacy protocol which introduces an intermediate trusted server between local users and a central data curator. It significantly amplifies the central DP guarantee by…

Cryptography and Security · Computer Science 2024-07-26 Yixuan Liu , Yuhan Liu , Li Xiong , Yujie Gu , Hong Chen

Caching popular contents is a promising way to offload the mobile data traffic in wireless networks, but so far the potential advantage of caching in improving physical layer security (PLS) is rarely considered. In this paper, we contribute…

Information Theory · Computer Science 2017-11-15 Wu Zhao , Zhiyong Chen , Kuikui Li , Bin Xia

Despite exciting progress on cryptography, secure and efficient query processing over outsourced data remains an open challenge. We develop a communication-efficient and information-theoretically secure system, entitled Obscure for…

Databases · Computer Science 2020-04-29 Peeyush Gupta , Yin Li , Sharad Mehrotra , Nisha Panwar , Shantanu Sharma , Sumaya Almanee

The DNS infrastructure is infamous for facilitating reflective amplification attacks. Various countermeasures such as server shielding, access control, rate limiting, and protocol restrictions have been implemented. Still, the threat…

Cryptography and Security · Computer Science 2025-10-23 Maynard Koch , Florian Dolzmann , Thomas C. Schmidt , Matthias Wählisch

When collecting information, local differential privacy (LDP) alleviates privacy concerns of users because their private information is randomized before being sent it to the central aggregator. LDP imposes large amount of noise as each…

Cryptography and Security · Computer Science 2020-08-04 Tianhao Wang , Bolin Ding , Min Xu , Zhicong Huang , Cheng Hong , Jingren Zhou , Ninghui Li , Somesh Jha

The location-based services provide an interesting combination of cyber and physical worlds. However, they can also threaten the users' privacy. Existing privacy preserving protocols require trusted nodes, with serious security and…

Cryptography and Security · Computer Science 2016-06-09 Meysam Ghaffari , Nasser Ghadiri , Mohammad Hossein Manshaei , Mehran Sadeghi Lahijani

Imperfect secrecy in communication systems is investigated. Instead of using equivocation as a measure of secrecy, the distortion that an eavesdropper incurs in producing an estimate of the source sequence is examined. The communication…

Information Theory · Computer Science 2012-10-09 Curt Schieler , Eva C. Song , Paul Cuff , H. Vincent Poor

Given the importance of privacy, many Internet protocols are nowadays designed with privacy in mind (e.g., using TLS for confidentiality). Foreseeing all privacy issues at the time of protocol design is, however, challenging and may become…

Networking and Internet Architecture · Computer Science 2022-09-21 Olivier van der Toorn , Raffaele Sommese , Anna Sperotto , Roland van Rijswijk-Deij , Mattijs Jonker

The USB protocol has become a ubiquitous standard for connecting peripherals to computers, making its security a critical concern. A recent research study demonstrated the potential to exploit weaknesses in well-established protocols, such…

Cryptography and Security · Computer Science 2025-03-26 Davis Ranney , Yufei Wang , A. Adam Ding , Yunsi Fei

As machine learning (ML) becomes more prevalent in human-centric applications, there is a growing emphasis on algorithmic fairness and privacy protection. While previous research has explored these areas as separate objectives, there is a…

Machine Learning · Computer Science 2024-02-19 Songjie Xie , Youlong Wu , Jiaxuan Li , Ming Ding , Khaled B. Letaief

The Internet of Things (IoT) has become increasingly popular in people's daily lives. The pervasive IoT devices are encouraged to share data with each other in order to better serve the users. However, users are reluctant to share sensitive…

Cryptography and Security · Computer Science 2018-07-03 Longfei Wu , Xiaojiang Du , Jie Wu , Jingwei Liu , Eduard C. Dragut

In the modern digital world, a user of a smart system remains surrounded with as well as observed by a number of tiny IoT devices round the clock almost everywhere. Unfortunately, the ability of these devices to sense and share various…

Cryptography and Security · Computer Science 2022-07-26 Himanshu Goyal , Krishna Kodali , Sudipta Saha

Modern malware can take various forms, and has reached a very high level of sophistication in terms of its penetration, persistence, communication and hiding capabilities. The use of cryptography, and of covert communication channels over…

Cryptography and Security · Computer Science 2020-01-27 Constantinos Patsakis , Fran Casino

Cooperative spectrum sensing, despite its effectiveness in enabling dynamic spectrum access, suffers from location privacy threats, merely because secondary users (SUs)' sensing reports that need to be shared with a fusion center to make…

Networking and Internet Architecture · Computer Science 2018-07-18 Mohamed Grissa , Attila Yavuz , Bechir Hamdaoui

The Bitcoin P2P network currently represents a reference benchmark for modern cryptocurrencies. Its underlying protocol defines how transactions and blocks are distributed through all participating nodes. To protect user privacy, the…

Cryptography and Security · Computer Science 2021-09-02 Federico Franzoni , Vanesa Daza

Voice Service Providers (VSPs) participating in VoIP peering frequently want to withhold their identity and related privacy-sensitive information from other parties during the VoIP communication. A number of existing documents on VoIP…

Networking and Internet Architecture · Computer Science 2008-07-09 Charles Shen , Henning Schulzrinne

Shared folders are still a common practice for granting third parties access to data files, regardless of the advances in data sharing technologies. Services like Google Drive, Dropbox, Box, and others, provide infrastructures and…

Cryptography and Security · Computer Science 2021-09-01 Stefano Braghin , Marco Simioni , Mathieu Sinn

Obfuscation in privacy engineering denotes a diverse set of data operations aimed at reducing the privacy loss that users incur in by participating in digital systems. Obfuscation's domain of application is vast: privacy-preserving database…

Cryptography and Security · Computer Science 2023-08-25 Ero Balsa

As billions of personal data being shared through social media and network, the data privacy and security have drawn an increasing attention. Several attempts have been made to alleviate the leakage of identity information from face photos,…

Machine Learning · Computer Science 2021-08-17 Xiao Yang , Yinpeng Dong , Tianyu Pang , Hang Su , Jun Zhu , Yuefeng Chen , Hui Xue

Cloud providers' support for network evasion techniques that misrepresent the server's domain name is more prevalent than previously believed, which has serious implications for security and privacy due to the reliance on domain names in…

Cryptography and Security · Computer Science 2023-07-18 Blake Anderson , David McGrew