Attacks Research And Application Base On Bittorrent Protocol

Bittorrent is a typical and traditional P2P transport protocol to share file resources. It can simply release file resources, have high download speed, the larger number of people to download a file, the faster to download it, and so on. Bittorrent protocol is favored by a growing number of users, according to a survey pointed out that P2P network traffic accounted for 35%~60% of total China's Internet traffic during the day, and 50% ~ 90% at night, in which Bittorrent protocol accounted for the most important part, more over the rate is increasing.Bittorrent protocol, because of its distributed and peer to peer characteristics, many traditional C/S attack methods are no longer applicable to Bittorrent network, at the same time, a lot of C/S security policy model in Bittorrent network cannot be good to play a role. As a result, research on weakness of Bittorrent protocol and the means of attack, will help security experts make appropriate security policy to protect user data and resources. The safety of Bittorrent is important, currently, it is a new topic to research the attack technology on Bittorrent protocol.In this paper, we systemically described communication process of Bittorrent protocol, from the set up operation to process, analyzed the security hidden danger in the presence of Torrent file mechanism and Tracker server mechanism, then put forward for data stream replacement attacks model and denial of service attacks model. Through these experiments, we proved the effectiveness of the attack means, at the same time, we analyzed the DHT Network attack methods, discussed a number of constructive means of attack.