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We evaluate the secrecy performance of a multiple access cooperative network where the destination node is wiretapped by a malicious and passive eavesdropper. We propose the application of the network coding technique as an alternative to…

This paper presents new methods enabling anonymous communication on the Internet. We describe a new protocol that allows us to create an anonymous overlay network by exploiting the web browsing activities of regular users. We show that the…

Cryptography and Security · Computer Science 2007-05-23 Matthias Bauer

Online Social Network (OSN) is one of the most hottest services in the past years. It preserves the life of users and provides great potential for journalists, sociologists and business analysts. Crawling data from social network is a basic…

Social and Information Networks · Computer Science 2013-12-10 Rui Guo , Hongzhi Wang , Mengwen Chen , Jianzhong Li , Hong Gao

Multilayer networks allow for modeling complex relationships, where individuals are embedded in multiple social networks at the same time. Given the ubiquity of such relationships, these networks have been increasingly gaining attention in…

Social and Information Networks · Computer Science 2019-11-15 Marcin Waniek , Tomasz P. Michalak , Talal Rahwan

The paper discusses methods, forms and safety issues of social network usage for school students. Taking into consideration the growing interest of students to electronic communication in social networks (ESN), it was described their place…

Computers and Society · Computer Science 2018-07-18 Svitlana Lytvynova , Oleksandr Burov

Many organizations protect secure networked devices from non-secure networked devices by assigning each class of devices to a different logical network. These two logical networks, commonly called the host network and the guest network, use…

Cryptography and Security · Computer Science 2019-08-08 Adar Ovadya , Rom Ogen , Yakov Mallah , Niv Gilboa , Yossi Oren

Online communities are not safe spaces for user privacy. Even though existing research focuses on creating and improving various content moderation strategies and privacy preserving technologies, platforms hosting online communities support…

Human-Computer Interaction · Computer Science 2023-08-04 Kyle Beadle , Marie Vasek

Social Networks (SNs) have been gradually applied by utility companies as an addition to smart grid and are proved to be helpful in smoothing load curves and reducing energy usage. However, SNs also bring in new threats to smart grid:…

Systems and Control · Electrical Eng. & Systems 2020-05-19 Tianyi Pan , Subhankar Mishra , Lan N. Nguyen , Gunhee Lee , Jungmin Kang , Jungtaek Seo , My T. Thai

Social networks have become an essential meeting point for millions of individuals willing to publish and consume huge quantities of heterogeneous information. Some studies have shown that the data published in these platforms may contain…

Cryptography and Security · Computer Science 2016-07-05 Alexandre Viejo , David Sánchez

Many decentralized online social networks (DOSNs) have been proposed due to an increase in awareness related to privacy and scalability issues in centralized social networks. Such decentralized networks transfer processing and storage…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-09-24 Muhammad Anis Uddin Nasir , Sarunas Girdzijauskas , Nicolas Kourtellis

Since 1950, information flows have been in the centre of scientific research. Up until internet penetration in the late 90s, these studies were based over traditional offline social networks. Several observations in offline information…

Social and Information Networks · Computer Science 2014-03-07 Giannis Haralabopoulos , Ioannis Anagnostopoulos

We consider a cascade network where a sequence of nodes each send a message to their downstream neighbor to enable coordination, the first node having access to an information signal. An adversary also receives all of the communication as…

Information Theory · Computer Science 2014-11-04 Paul Cuff

In this paper, I present a method to solve a node discovery problem in a networked organization. Covert nodes refer to the nodes which are not observable directly. They affect social interactions, but do not appear in the surveillance logs…

Artificial Intelligence · Computer Science 2016-11-15 Yoshiharu Maeno

Web services commonly employ Content Distribution Networks (CDNs) for performance and security. As web traffic is becoming 100% HTTPS, more and more websites allow CDNs to terminate their HTTPS connections. This practice may expose a…

Cryptography and Security · Computer Science 2023-02-02 Rui Xin , Shihan Lin , Xiaowei Yang

Centralized social networks have experienced a transformative impact on our digital era communication, connection, and information-sharing information. However, it has also raised significant concerns regarding users' privacy and individual…

Cryptography and Security · Computer Science 2024-09-30 Quang Cao , Katerina Vgena , Aikaterini-Georgia Mavroeidi , Christos Kalloniatis , Xun Yi , Son Hoang Dau

Social networks existing among employees, customers or users of various IT systems have become one of the research areas of growing importance. A social network consists of nodes - social entities and edges linking pairs of nodes. In…

Social and Information Networks · Computer Science 2012-07-19 Piotr Bródka , Przemysław Kazienko , Katarzyna Musiał , Krzysztof Skibicki

As the Internet struggles to cope with scalability, mobility, and security issues, new network architectures are being proposed to better accommodate the needs of modern systems and applications. In particular, Content-Oriented Networking…

Cryptography and Security · Computer Science 2013-07-31 Abdelberi Chaabane , Emiliano De Cristofaro , Mohammed-Ali Kaafar , Ersin Uzun

Real-time, online-editing web apps provide free and convenient services for collaboratively editing, sharing and storing files. The benefits of these web applications do not come for free: not only do service providers have full access to…

Cryptography and Security · Computer Science 2019-11-19 Yihao Hu , Ari Trachtenberg , Prakash Ishwar

A growing framework of legal and ethical requirements limit scientific and commercial evalua-tion of personal data. Typically, pseudonymization, encryption, or methods of distributed com-puting try to protect individual privacy. However,…

Cryptography and Security · Computer Science 2018-11-21 Nikolaus von Bomhard , Bernd Ahlborn , Catherine Mason , Ulrich Mansmann

The social networking era has left us with little privacy. The details of the social network users are published on Social Networking sites. Vulnerability has reached new heights due to the overpowering effects of social networking. The…

Social and Information Networks · Computer Science 2016-04-08 Jinju Joby P , Jyothi Korra