With hammocks hanging from trees and the smell of marijuana lingering in the air, the summer camp organised by Germany's Chaos Computer Club (CCC) almost felt like Woodstock.

But instead of hippies it was computer hackers who had flooded this year's summer camp. And instead of flower power the talk was of the latest controversies in cyberspace, especially the legality of hacking and the role of famed whistleblower site WikiLeaks.