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Computer Science Clay
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25-02-2009, 02:41 PM


Networked computer systems are rapidly growing in importance as the medium of choice for the storage and exchange of information. However, current systems afford little privacy to their users, and typically store any given data item in only one or a few fixed places, creating a central point of failure. Because of a continued desire among individuals to protect the privacy of their authorship or readership of various types of sensitive information, and the undesirability of central points of failure which can be attacked by opponents wishing to remove data from the system or simply overloaded by too much interest, systems offering greater security and reliability are needed.

Freenet is being developed as a distributed information storage and retrieval system designed to address these concerns of privacy and availability. Freenet is implemented as an adaptive peer-to-peer network of nodes that query one another to store and retrieve data files, which are named by location-independent keys. Each node maintains its own local datastore which it makes available to the network for reading and writing, as well as a dynamic routing table containing addresses of other nodes and the keys that they are thought to hold. It is intended that most users of the system will run nodes, both to provide security guarantees against inadvertently using a hostile foreign node and to increase the storage capacity available to the network as a whole.

The system can be regarded as a cooperative distributed filesystem incorporating location independence and transparent lazy replication. Freenet enables users to share unused disk space being directly useful to users themselves, acting as an extension to there own hard drives. The basic model is that requests for keys are passed along from node to node through a chain of proxy requests in which each node makes a local decision about where to send the request next, in the style of IP (Internet Protocol) routing.
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seminar topics
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21-03-2010, 01:34 PM

please read topicideashow-to-FREENET-A-Distributed-and-Anonymous-Information-Storage-and-Retrieval-System and topicideashow-to-Freenet for more about freenet technical informations
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