On 01.08.2014 12:04, Tobias Florek wrote:
just a note, that that's what sebastian schinzel's "Deterministic and Unpredictable delay padding" is about. see the talk (i linked to earlier):
talk from sebastian schnitzler on 29c3:
http://media.ccc.de/browse/congress/2012/29c3-5044-en-time_is_not_on_your_si...
slides: http://sebastian-schinzel.de/29c3/download/29c3-schinzel.pdf
abstract: http://sebastian-schinzel.de/_download/cosade-2011-extended-abstract.pdf
I just realized that the unifying framework for countermeasures of any resource based attacks (time, electricity, heat, radiation) is MaxEnt. Constant time is trivially MaxEnt. If you can't do constant time, go for uniform distribution over a number of predefined times. If you can't do that, from the space of possible distributions, choose the one with maximum entropy. So much for the theory. E.T. Jaynes would be delighted to see his work appear in yet another context. -- Wojtek