Native IPv6 deployment is on an exponential track http://www.google.com/ipv6/statistics.html
Unlike IPv4, IPv6 has had encryption as part of the specs, but no opportunistic ways to set up an encrypted session. There have been efforts like http://www.inrialpes.fr/planete/people/chneuman/OE.html which did not suffer from scaling issues of http://en.wikipedia.org/wiki/FreeS/WAN (no need for additional high threshold of entry technologies like DNS or PKI) yet never achieved critical mass. In the light of recent IPv6 growth there is obviously considerable value in *working* IPv6 opportunistic session setups in open source operating systems (Linux, *BSD) as it would require active attacks to listen on a connection (which are expensive and detectable in principle) instead of passive and hence undetectable traffic interception of cleartext. Perhaps such a project would be of interest to some parties on this list. P.S. A darknet-like approach which also uses IPv6 (but can tunnel over IPv4) is http://en.wikipedia.org/wiki/Cjdns -- Too many emails? Unsubscribe, change to digest, or change password by emailing moderator at compa...@stanford.edu or changing your settings at https://mailman.stanford.edu/mailman/listinfo/liberationtech
