BitTorrent is the most successful peer-to-peer application. In the last years the research community has studied the BitTorrent ecosystem by collecting data from real BitTorrent swarms using different measurement techniques. In this paper we present the first survey of these techniques that constitutes a first step in the design of future measurement techniques and tools for analyzing large sca...

BitTorrent as one of the leading P2P file sharing applications has dominant traffic in broadband access networks. In this paper we present the main characteristics of BitTorrent traffic based on actual measurements taken from a commercial network. Analysis results at both applicationand flow-levels are presented and discussed.

BitTorrent is the most extensively used protocol in peer-to-peer systems. Its clients are widely spread worldwide and account for a large fraction of today’s Internet traffic. This paper will discuss potential attack that exploits a certain vulnerability of BitTorrent based systems. Code injection refers to force a code – which may be malicious to run inside another benign code, by inserting it...

The distribution of virtual goods like multimedia data relies on the trustworthiness of the distribution system. Recent concepts for the distribution based on peer to peer networks like BitTorrent require new approaches to establish the needed level of trust in the overall functionality of the system. This paper explores the integration of hardware based trust concepts from the domain of Truste...

The following paper presents various methods and implementation techniques used to harvest metadata efficiently from a Kademlia Distributed Hashtable (DHT) as used in the BitTorrent P2P network to build an index of publicly available files in the BitTorrent ecosystem. The indexer design makes various tradeoffs between throughput and fairness towards other DHT nodes while also being scaleable in...