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by joveian
3602 days ago
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I like the 1024x1024 picture; it looks a bit like a bird to me, or maybe a stingray. One interesting application of bitwise AND is in cryptography, particularly LRX (logical rotations and xor) algorithms popularized by Keccak/SHA-3. By using only these limited operations, masking (blinding) becomes much more efficient that makes various side channel attacks harder [0]. Several of the CAESAR AEAD competition candidates are LRX. NORX uses only AND, XOR, and rotation. [0] http://keccak.noekeon.org/NoteSideChannelAttacks.pdf |
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