BitTorrent is currently one of the most popular peer-to-peer file sharing applications. Many previous studies of BitTorrent performance have focused on the dynamics of BitTorrent swarms and model flashcrowds by means of the arrival and departure processes of peers. However, until now there is no study that investigates the flashcrowd phenomenon at the BitTorrent system level. In this paper, we ...

This paper aims to improve the accuracy of port-scan detectors by analyzing traffic of BitTorrent hosts and differentiating their respective BitTorrent connection (attempts) from port-scans. It is shown that by looking at BitTorrent coordination traffic and modelling port-scanning behavior the number of BitTorrent-related false positives can be reduced by 80% without any loss of IDS accuracy.

Bittorrent currently makes up a large proportion of Internet traffic. The main purpose of my project is to attempt to identify Bittorrent traffic from other kinds of traffic (with particular emphasis on FTP which provides similar functionality to BitTorrent in that it is primarily used for large file downloads) using statistical classification techniques. I will show that Bittorrent traffic can...

The BitTorrent peer-to-peer file-sharing network is currently one of the dominant Internet applications. Understanding the characteristics of BitTorrent through real-world measurements is key to improve the quality of service for tens of millions of BitTorrent users, but the complexity and scale of BitTorrent make a single, complete measurement impractical. Thus, an increasing number of real me...

On today’s internet, BitTorrent is certainly the most popular P2P file distribution application. BitTorrent introduced some innovative peer and piece selection strategies for efficient file distribution over a large participating community. This popularity motivated researchers in studying the performance of BitTorrent and its mechanisms using a number of approaches. This paper presents a surve...

As mobile Internet environments are becoming widespread, how to revamp peer-to-peer (P2P) operations for mobile hosts is gaining more attention. In this paper, we carry out empirical measurement of BitTorrent users in a commercial WiMAX network. We investigate how handovers in WiMAX networks impact the BitTorrent performance, how BitTorrent peers perform from the aspects of connectivity, stabil...

Though BitTorrent is an extremely popular and cost efficient P2P file distribution system, it is not able to efficiently utilize all available bandwidth. BitTorrent employs fairness and anti-freeriding mechanisms that function optimally in scenarios when broadband connections are symmetric. However, the majority of peers in BitTorrent swarms have asymmetric broadband connections. This makes it ...

Peer-to-peer (P2P) networks and applications represent an efficient method of distributing various network contents across the Internet. Foremost among these networks is the BitTorrent protocol. While BitTorrent has become one of the most popular P2P applications, attacking BitTorrent applications recently began to arise. Although sources of the attacks may be different, their main goal is to s...

In this paper, we demonstrate that the BitTorrent protocol family is vulnerable to distributed reflective denialof-service (DRDoS) attacks. Specifically, we show that an attacker can exploit BitTorrent protocols (Micro Transport Protocol (uTP) [32], Distributed Hash Table (DHT) [30], Message Stream Encryption (MSE) [8]) and BitTorrent Sync (BTSync) [6] to reflect and amplify traffic from peers....