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An anonymous P2P computer network is a particular type of peer-to-peer network in which the users and their nodes are pseudonymous by default. The primary difference between regular and anonymous networks is in the routing method of their respective network architectures. These networks allow for unfettered free flow of information, legal or otherwise.
From : en.wikipedia.org/wiki/Anonymous_P2P
Circle
The Circle is an open source scalable decentralized peer to peer application.
The Circle allows you to :
Share files
Send instant messages and chat IRC-style
Put together your own personalized, trust based news service
Proxy Debian package downloads
The Circle is written in Python. It runs on Linux and Windows. (in fact, there is very little operating system specific code, so it will most likely work on any system that supports Python)
Scalability
-----------
At the core of the Circle is a decentralized hashtable, or "Chord". This table allows users to search for files in logarithmic time, based on keywords. This means that the Circle does not have the scalability problems of Gnutella style network (such as Kazaa, eDonkey), while also avoiding the need for a central server and therefore a single point of failure. Details of its operation are given in the "Technical Details" section below.
Privacy
--------
The Circle does have the ability to post fully anonymous news a la Freenet. However, the file-sharing protocol isn't entirely anonymous. People will be able to work out your IP address.
In order to protect user privacy, the Circle includes a Digital Rights Management system. Although everybody can search your files by their keywords, you may choose which users are authorized to download them. An unauthorized third party has access only to the names of your files, not to their content. Needless to say, we expect you to use this system in order to prevent copyright infringement, while allowing private copy.
The Circle allows you to :
Share files
Send instant messages and chat IRC-style
Put together your own personalized, trust based news service
Proxy Debian package downloads
The Circle is written in Python. It runs on Linux and Windows. (in fact, there is very little operating system specific code, so it will most likely work on any system that supports Python)
Scalability
-----------
At the core of the Circle is a decentralized hashtable, or "Chord". This table allows users to search for files in logarithmic time, based on keywords. This means that the Circle does not have the scalability problems of Gnutella style network (such as Kazaa, eDonkey), while also avoiding the need for a central server and therefore a single point of failure. Details of its operation are given in the "Technical Details" section below.
Privacy
--------
The Circle does have the ability to post fully anonymous news a la Freenet. However, the file-sharing protocol isn't entirely anonymous. People will be able to work out your IP address.
In order to protect user privacy, the Circle includes a Digital Rights Management system. Although everybody can search your files by their keywords, you may choose which users are authorized to download them. An unauthorized third party has access only to the names of your files, not to their content. Needless to say, we expect you to use this system in order to prevent copyright infringement, while allowing private copy.
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