Designed for accessing websites from the stringest network environments, the censorship.no project (CENO) by eQualit.ie , allows you to browse the Web without restriction, circumventing any network filtering. The underlying architecture offers peer-to-peer routing and distributed caching, using 'darknet' infrastructure to avoid network censorship and bring the Web to your browser.

The CENO project presents a new generation of censorship circumvention possibilities. Our project is built in support of Articles 18, 19 and 20 of the Universal Declaration of Human Rights.

CENO2 infographic

The CENO advantage

The majority of internationally-bound traffic in countries that filter content requests are routed through a fixed number of centralized exchanges where surveillance and censorship technology is installed. Traditional circumvention technologies require the user to connect directly to a proxy in the uncensored zone. This design gives the censor an advantage in locating and blocking popular proxies, VPN servers, relays, bridges, etc.

CENO proposes a fundamentally different solution: reduce the requests to externally available proxy servers and enable the storage of retrieved content inside the censored zone. CENOs advantage comes from being both a transport and a storage solution.

Peer-to-peer routing is the ideal solution for the “cat and mouse” scenario that most circumvention providers end up playing with the censor. Clients need not know the location of a proxy to relay censored content, instead using small-world networks to connect to their peers, and thereafter to a bridge in the uncensored zone.

Once a website is accessed by a single user (node), it is stored and continues to propagate inside the country peer-to-peer. Individual nodes are referenced by an identifier which does not give away their physical location. Content remains available inside the censored zone even if external connectivity is cut. Content can be seeded into the network via alternative means as well (e.g. uploaded from a USB drive).

CENO source

Actively developed source code repositories. See also the CENO documentation repository for comprehensive information on the project and a guide to its repositories.

CENO archive

Old and unmaintained repositories of historical interest, including those of the deprecated proof of concept project built on the Freenet anonymous file sharing and content publishing network.