Information, Computer and Network Security Terms Glossary and
Six/Four refers to a technology for circumventing attempts to censor traffic on the Internet. The Six/Four System is a flexible framework consisting of a formally specified Peer-To-Peer protocol. This protocol is best described as a trust-enhanced anonymous tunneling protocol, and meant to provide people with anonymous, secure access to public network. Six/Four combines peer-to-peer technologies with virtual private networking and the "open proxy" method for masking online identities to provide ultra-anonymous Internet access.