A distinguishing attack is any form of cryptanalysis on data encrypted by a cipher that allows an attacker to distinguish the encrypted data from random data.

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Distinguishing between two probabilities and the uniform probability

Say I have a polynomial adversary $A$ that can distinguish with a non-negligible adventage between $x$ generated from a probability $X$ and $y$ generated from a probability $Y$. Obviously, this ...
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Problem understanding the construction of block cipher distinguishers

I know a block cipher distinguisher is an algorithm which can predict with high probability whether a system is a random permutation or a block cipher by asking a few queries to the system. My ...