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In Authenticated Identity-Based Encryption by Ben Lynn, in Proof of Integrity (section 4.3) and Proof of Security (section 4.4), I cannot grab the concept of "guessed ID" . Because encryption differs according to "guessed ID", I am unable to know how it works.

Is there anyone who can help explain this term and how it affects the proof?

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  • $\begingroup$ Please take a look at my edits. Try and include links and concrete references within your question. This saves us a lot of work and increases your chance of getting good answers. I've narrowed down your last question as the proofs are 3 pages in size; we cannot be expected to break that down even if we knew what you aren't able to grab. $\endgroup$ – Maarten Bodewes Jun 10 '16 at 9:33
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"Guessed ID" means ID that the oracle guesses the attacker algorithm $A$ will attack.

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    $\begingroup$ It could well be that this is the correct answer. But currently it's not a very clear sentence, nor does it explain why this is so or reference any part of the linked paper. In other words, could you expand this answer a bit? $\endgroup$ – Maarten Bodewes Jun 10 '16 at 10:33

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