ed2k links are used by the eDonkey2000 family of P2P programs, such as eDonkey2000 itself, eMule, Hybrid, MLDonkey, and others. These links are primarily used to provide a unique identifier for file without referring to a specific location, like in FTP and HTTP links. This is done by using a hash function on the file to calculate its checksum. eDonkey network (also called eDonkey2000 network or ed2k) is a file sharing network used primarily to exchange music, films and software. ... A peer-to-peer (or P2P) computer network is a network that relies on the computing power and bandwidth of the participants in the network rather than concentrating it in a relatively few servers. ... eDonkey2000 is a peer-to-peer file sharing application developed by MetaMachine, using the Multisource File Transfer Protocol. ... The eMule mascot. ... This page is about the File Transfer Protocol, a computer protocol. ... HTTP (for HyperText Transfer Protocol) is the primary method used to convey information on the World Wide Web. ... A hash function or hash algorithm is a function for summarizing or probabilistically identifying data. ...

ed2k links allow the file to be automatically downloaded in eMule, eDonkey2000 or other compatible software. This linking feature was one of the first to be introduced in peer to peer file sharing. Now Magnet links serves a similar role but is not limited to the ed2K hash but can be other hashes such as SHA or MD5 etc. The eMule mascot. ... eDonkey2000 is a peer-to-peer file sharing application developed by MetaMachine, using the Multisource File Transfer Protocol. ... P2P redirects here. ... A magnet link is an internet hyperlink standard for the downloading of files. ... Sha (Ш, ш) is a letter of the Cyrillic alphabet, representing the consonant sound /ʃ/ or /ʃʲ/. This is equivalent to sh in English, ch in French, sch in German, ş in Turkish, or sz in Polish. ... MD5 was designed by Ronald Rivest (one of the inventors of the RSA algorithm) in 1991. ...

The ed2k hash function is based on MD4 but differs for files in excess of approximately 9.5 MB. The file is divided into 9.28Mb chunks and the hash is calculated for each one. The resulting hash table is hashed once again, and the final value is used as a part of the ed2k link. MD4 is a message digest algorithm (the fourth in a series) designed by Professor Ronald Rivest of MIT in 1990. ... This article is about a unit of data measurement. ...

Hash link format

The typical ed2k link also includes the filename and the filesize. An example (a link to the 15Mb Purist Edit trailer) is provided below: A file in a computer system is a stream (sequence) of bits stored as a single unit, typically in a file system on disk or magnetic tape. ... The Two Towers: The Purist Edit is a modified form of the movie The Lord of the Rings: The Two Towers. ...

ed2k://|file|The_Two_Towers-The_Purist_Edit-Trailer.avi|14997504|

 965c013e991ee246d63d45ea71954c4d|/ 

The ed2k links can also include a reference to the IP address and port of the specific client that shares a file. This is done by adding a list of sources after the main part of the link:

ed2k://|file|The_Two_Towers-The_Purist_Edit-Trailer.avi|14997504|

 965c013e991ee246d63d45ea71954c4d|/|sources,202.89.123.6:4662|/ 

The "file" part indicates that this is a file link, as opposed to a server link. A server link is a reference to an eDonkey2000 server; clicking on such a link typically adds it to the server list:

 ed2k://|server|207.44.222.51|4242|/ 

After installing an eDonkey2000 client on Microsoft Windows, the ed2k:// protocol is optionally registered so that clicking on it in the browser automatically starts the download. Microsoft Windows is a range of operating environments and operating systems for personal computers and servers. ...

More ed2k links

• Ed2K @ Digital-Update: Many ed2k releases.