I2P is a Java application which builds up an anonymous network from hundreds of Nodes, similarly to the Freenet Project. Data is encrypted en relayed through several other I2P routers, to maintain anonymity.
There are "normal services" that are integrated into I2P networking. These include IRC, web servers, email, bittorrent, gnutella, instant messengers, ... All of these programs work anonymously via the I2P network infrastructure. There are no official connections from I2P to the 'normal' internet, however, unofficial bridges do exist and can connect to regular websites.
The 0.6.2 release delivers performance and anonymity improvements.
Improvements:- LeaseSet data is no longer added to every end-to-end message, reducing protocol overhead.
- Unreachable peers are avoided as inbound tunnel gateways, which helps reliability and makes it possible to use
persistent Lease selection, which in turn helps performance by reducing out-of-order message delivery. - The sequence of peers in a tunnel is now kept in a strict order according to XOR distance from a random value, to make it harder for an adversary to gather statistics for a predecessor attack.
- Improvements to applications like I2PSnark and the Router Console are also introduced.
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