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I have been told to move the question to this forum in order to get a better insight, so here we go:

Reading some questions in this forum I encountered this answer mentioning IND-CPA as a requirement for ciphers. It got me thinking about this paper I recently read, where a formal model of the Honest-But-Curious adversary is given, in order to automate the analysis of whether certain protocol has the indistinguishability property. And I have this way realized I am missing a piece in the puzzle.

As far as I remember, in a Cryptographic System, we have:

Attacks like

  • Ciphertext-only (Passive Attack)
  • Known Plaintext Attack (Passive Attack)
  • Chosen Plaintext Attack (CPA)
  • Chosen Ciphertext Attack (CCA)

And Notions of Security like

  • Semantic Security (SS, SEM)
  • Indistinguishability Security (IND)
  • Non-malleability (NM)

And for stating the notions preserved under certain attacks we end up with combinations like the well known IND-CPA.

Now, how do adversarial models like Dolev-Yao, Honest-But-Curious or Byzantine fit in this scheme? ( If they do at all and I am not mixing up things)

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  • $\begingroup$ You are mixing up a lot of things. Get a good textbook. $\endgroup$ – fkraiem Aug 25 '17 at 5:41
  • $\begingroup$ Could you elaborate please? $\endgroup$ – Alvai Aug 25 '17 at 15:54
  • $\begingroup$ @fkraiem what exactly am I mixing up according to you? I have been reading quite a bit and I cannot see anything wrong in my question so far... $\endgroup$ – Alvai Aug 27 '17 at 16:58

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