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Perfect Secrecy of AES file Encryption
KeySpace > MessageSpace ! But the MessageSpace when encrypting files is much larger than the KeySpace and hence, AES will not be effective. Is that correct ?
How can IND-CPA encryption be identity revealing?
I did read up about [IND-CPA] (en.wikipedia.org/wiki/…) and understand that the notion of security that it talks about is different from Identity revealing. Thank you for pointing that out ! However, I still have problems coming up with a concrete example of an identity revealing scheme that is IND-CPA.
Double Encryption Using same key
Hey, I forgot to add that case too! I am looking if there are attacks beyond meet-in-the-middle, collisions and one encryption undoing the other..