BitTorrent 协议规范1.0版

BitTorrent 协议规范1.0版(2) BitTorrentWishList - A wish list for developers and end users alike.
BitTorrentTrackerExtensions - Describes the various extensions of the Tracker protocol that are in use.

Conventions

In this document, a number of conventions are used in an attempt to present information in a concise and unambiguous fashion.

• peer v/s client: In this document, a peer is any BitTorrent client participating in a download. The client is also a peer, however it is the BitTorrent client that is running on the local machine. Reader of this specification may choose to think of themselves as the client which connects to numerous peers.
• piece v/s block: In this document, a piece refers to a portion of the downloaded data that is described in the metainfo file, which can be verified by a SHA1 hash. A block is a portion of data that a client may request from a peer. Two or more blocks make up a whole piece, which may then be verified.
• defacto standard: Large blocks of text in italiCS indicates a practice so common in various client implementations of BitTorrent that it is considered a defacto standard.

In order help others to find recent changes that have been made to this document, please fill out the change log (last section). This should contain a brief (i.e. one-line) entry for each major change that you've made to the document.

bencoding

Bencoding is a way to specify and organize data in a terse format. It supports the following types: byte strings, integers, lists, and dictionaries.

byte strings

Byte strings are encoded as follows: <string length encoded in base ten ASCII>:<string data>