Hi! I've written a paper where I introduce a "name spectrum" as a identity model. The name spectrum has increasing levels of identification; anyone, anyone with alias, established pseudonym, well-reputed pseudonym, escrowed pseudonym, identity and True Name. I try to show how law enforcement still can find criminals, even though they (we) have privacy. I argue that the power balance between the individual and the law enforcement should be approximately the same as it is in ordinary life. I talk quite a lot about the analogy between real life and cyberspace when it comes to power and trust. I have a suggestion for how to deploy traffic mixers (DCnet) without tilting the power balance too much to the advantage of the user as well. I suggest reputation servers where an efficient reputation market can be maintained. I'd appreciate any comments on the paper. It is still preliminary, though. It is available at http://www.it.kth.se/~cwe/phd/ in a number of formats. -Christian Wettergren, cwe@it.kth.se