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How can we prove that the advantage for this hide game for any adversary is equal 0?
Here is the Scheme:
Here is the HIDE game:
Here is my idea but I am not quite sure. I would appreciate some input.
We want to bring advantage = 0 for all adversaries. … If we prove that then we can argue that the adversary won't be able to tell which game its in.
So L is a n-bit string chose uniformly at random. C is also random as well since it uses L? …
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Building an Adversary for a PRF game
Here is the game:
How can I make an $\mathcal{O}(k^2)$-time adversary making only one query to its Fn oracle and achieving advantage $= 1 - 1/(p-1)$
Here is my idea so far:
query $2^{-1}$, which when …