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Having gained momentum from its promise of centralized control over distributed network architectures at bargain costs, software-defined Networking (SDN) is an ever-increasing topic of research. SDN offers a simplified means to dynamically control multiple simple switches via a single controller program, which contrasts with current network infrastructures where individual network operators manage...
Controllers for software defined networks (SDNs) are quickly maturing to offer network operators more intuitive programming frameworks and greater abstractions for network application development. Likewise, many security solutions now exist within SDN environments for detecting and blocking clients who violate network policies. However, many of these solutions stop at triggering the security measure...
We present Ryuretic as a modular, programming framework for SDN application development. Ryuretic draws its inspiration from Pyretic, which already offers powerful, modular abstractions for network operators; however, Ryuretic also builds on Ryu's greater variety of packet match fields and its access to advanced OpenFlow protocols. This framework allows programmers to create new, extensible, and more...
Insider threats are a growing concern for industry, government, and campus networks. Yet, vulnerabilities inherent in Address Resolution Protocol (ARP) are exploitable by insiders seeking to launch sophisticated attacks on local area networks (LANs). Such attacks, initialized through ARP spoofing, include denial of service, server redirect, and man-in-the-middle attacks. Unfortunately, the current...
In this paper, the primary objective is to discuss the details of scalable methods for distributing certificate revocation lists and other large files using vehicle-to-vehicle and vehicle-to-infrastructure communications while taking advantage of the multi-channel operations in IEEE 1609.4. We also discuss the results from a simulation study using the ns-3 network simulator to closely replicate the...
Concerns for VANET participants will be the reliability and trustworthiness of received messages and the privacy in the use of the VANET to prevent vehicle tracking. To address these concerns, public key certificates have been standardized for VANETS; however, with the use of public key certificates comes additional concerns, especially how to ensure that received certificates are valid. To achieve...
This paper describes a novel idea for distributing certificate revocation lists (CRLs) in a vehicular ad hoc network (VANET) scenario. The idea, Most Pieces Broadcast (MPB), takes advantage of the two distinct channel types in VANETs while reducing contention for the wireless medium. Broadcast methods that reduce wireless medium contention in VANETs are highly desirable to assist in keeping the medium...
Internet attacks are becoming more advanced as the economy for cybercrime grows and the tools for evading detection become ubiquitous. To counter this threat, new detection and forensics tools are needed to capture these new techniques. In this paper, we propose a method to extract and analyze a richer set of forensic information from the file system journal of honypots in spite of anti-forensic tool...
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