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I am not sure how to prove that the given two scheme is perfectly indistinguishable for all PPT adversaries!

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  • $\begingroup$ Welcome to Cryptography. The usual way is assuming that they are not, then show that Enc cannot have Ind. $\endgroup$ – kelalaka Mar 18 at 19:49
  • $\begingroup$ Ok so if i assume they are not PPT then what should be my next step? $\endgroup$ – Student forlife Mar 18 at 20:10

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