From: Roger Dingledine To: ihw@itd.nrl.navy.mil Cc: arma@mit.edu, mfreed@mit.edu, dmolnar@hcs.harvard.edu Bcc: Subject: IHW2001 questions We presented a paper on Free Haven, a distributed anonymous storage service, at the Berkeley workshop (http://freehaven.net/doc/workshop/paper.ps). The workshop preproceedings mentioned the Info Hiding Workshop as a good opportunity for a related paper. We just finished writing a chapter on "Accountability in peer-to-peer systems" for an upcoming O'Reilly book, and we'd like to flesh out some of our ideas on accountability for mixnets. Our overall plan is to condense the accountability chapter, and make some of the points more precise. Specifically, we consider micropayments (techniques for preventing DoS attacks such as flooding, techniques for providing an incentive to run a mixnet node) and reputation systems (techniques for assessing overall quality and reliability of a mixnet node) as ways of improving reliability and efficiency in remailer networks. As far as we know, nobody has written a similar paper that puts these ideas together. Does this look like a good topic for the Info Hiding Workshop? We have an outline up at http://freehaven.net/doc/mix-acc/outline Can you give us some guidance on which of these topics are most relevant or interesting in the context of the Workshop? Also, since the O'Reilly chapters took more time than expected (you can look at our chapters at http://freehaven.net/doc/oreilly/), we're not going to have time to have a high-quality paper written by the submission deadline, December 7. Is an extended abstract acceptable? Thanks! --Roger