Information Flow in Interactive Systems

  title={Information Flow in Interactive Systems},
  author={M{\'a}rio S. Alvim and Miguel E. Andr{\'e}s and Catuscia Palamidessi},
We consider the problem of defining the information leakage in interactive systems where secrets and observables can alternate during the computation. We show that the information-theoretic approach which interprets such systems as (simple) noisy channels is not valid anymore. However, the principle can be recovered if we consider more complicated types of channels, that in Information Theory are known as channels with memory and feedback. We show that there is a complete correspondence between… CONTINUE READING
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