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Publication Detail
Compulsion resistant anonymous communications
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Conference Proceeding
  • Authors:
    Danezis G, Clulow J
  • Publication date:
    01/01/2006
  • Pagination:
    11, 25
  • Journal:
    Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
  • Volume:
    3727 LNCS
  • Status:
    Published
  • Print ISSN:
    0302-9743
Abstract
We study the effect compulsion attacks, through which an adversary can request a decryption or key from an honest node, have on the security of mix based anonymous communication systems. Some specific countermeasures are proposed that increase the cost of compulsion attacks, detect that tracing is taking place and ultimately allow for some anonymity to be preserved even when all nodes are under compulsion. Going beyond the case when a single message is traced, we also analyze the effect of multiple messages being traced and devise some techniques that could retain some anonymity. Our analysis highlights that we can reason about plausible deniability in terms of the information theoretic anonymity metrics. © Springer-Verlag Berlin Heidelberg 2005.
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