[cantos]

I had a brief look at the paper. I got stuck on the section about scalability. I can't see how that could be implemented so that authentication can be done given that the nodes are untrusted (by which I mean implemented with a much smaller amount of computation and storage than was required in the non-optimized approach).

[Sami_Lehtinen]

True, you're going to need gigabytes of memory. My test client used over 6 gigabytes o memry after small inventory injection play. I have a few great ideas how to create efficient propagating attacks, but I haven't yet tried those.

[muyuu]

Just publish the ones you've tried.