A Trust-Based Framework for Fault-Tolerant Data Aggregation in Wireless Multimedia Sensor Networks
For wireless multimedia sensor networks (WMSNs) deployed in noisy and unattended environments, it is necessary to establish a comprehensive framework that protects the accuracy of the gathered multimedia information. In this paper, we jointly consider ...
Attacks and Defenses in the Data Plane of Networks
Security issues in computer networks have focused on attacks on end systems and the control plane. An entirely new class of emerging network attacks aims at the data plane of the network. Data plane forwarding in network routers has traditionally been ...
Detecting Automation of Twitter Accounts: Are You a Human, Bot, or Cyborg?
Twitter is a new web application playing dual roles of online social networking and microblogging. Users communicate with each other by publishing text-based posts. The popularity and open structure of Twitter have attracted a large number of automated ...
Empirical Analysis of System-Level Vulnerability Metrics through Actual Attacks
The Common Vulnerability Scoring System (CVSS) is a widely used and well-established standard for classifying the severity of security vulnerabilities. For instance, all vulnerabilities in the US National Vulnerability Database (NVD) are scored ...
Enhancing Data Trustworthiness via Assured Digital Signing
Digital signatures are an important mechanism for ensuring data trustworthiness via source authenticity, integrity, and source nonrepudiation. However, their trustworthiness guarantee can be subverted in the real world by sophisticated attacks, which ...
Jamming-Resilient Multipath Routing
Jamming attacks are especially harmful to the reliability of wireless communication, as they can effectively disrupt communication between any node pairs. Existing jamming defenses primarily focus on repairing connectivity between adjacent nodes. In ...
On Energy Security of Server Systems
Power management has become increasingly important for server systems. Numerous techniques have been proposed and developed to optimize server power consumption and achieve energy proportional computing. However, the security perspective of server power ...
Preserving Structural Properties in Edge-Perturbing Anonymization Techniques for Social Networks
Social networks are attracting significant interest from researchers in different domains, especially with the advent of social networking systems which enable large-scale collection of network information. However, as much as analysis of such social ...
Robust Network Covert Communications Based on TCP and Enumerative Combinatorics
The problem of communicating covertly over the Internet has recently received considerable attention from both industry and academic communities. However, the previously proposed network covert channels are plagued by their unreliability and very low ...
Secure Overlay Cloud Storage with Access Control and Assured Deletion
We can now outsource data backups off-site to third-party cloud storage services so as to reduce data management costs. However, we must provide security guarantees for the outsourced data, which is now maintained by third parties. We design and ...
Surviving Attacks in Challenged Networks
In the event of a disaster, telecommunication infrastructures can be severely damaged or overloaded. Hastily formed networks can provide communication services in an ad hoc manner. These networks are challenging due to the chaotic context where ...
Virus Propagation in Heterogeneous Bluetooth Networks with Human Behaviors
The growth in the use of Smartphones and other mobile computing devices continues to grow rapidly. As mobile wireless communications become ubiquitous, the networks and systems that depend upon them will become more complex. In parallel with this, the ...
