Questions tagged [xor]

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Implementing depth-3 circuit for XOR

In this set of notes, they claim that there is a size $O(2^{\sqrt n})$ depth-3 circuit (OR -AND -OR) that implements XOR. I tried for a little bit to figure out how to do this, but couldn't find ...
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XOR of three integers where each pair's XOR is the other integer

I have three positive integers, a, b, and c. I know that $a\oplus b\oplus c=0$, so I got that each pairwise xor has to be the other positive integer. $a\oplus b=c$, $b\oplus c=a$, and so on, but I can'...
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Minimum pair-wise XOR of elements from two sets

I have two sets, $A$ and $B$, which both contain a large amount of hashed values. What is the most efficient way of computing: $$\min_{i,j} A_i \otimes B_j$$
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What happens when the xor inBlock chaining returns false?

"With block cipher, each plaintext block is XOR-ed with the previous ciphertext block and then encrypted, this is known as block chaining. This prevents identical blocks of plaintext from producing ...