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Results tagged with sha-2
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user 225
SHA-2 is a family of cryptographic hash functions designed by the NSA and published by NIST in 2001. The family includes various output lengths (224, 256, 384, and 512 bits).
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Are common cryptographic hashes bijective when hashing a single block of the same size as th...
No. Cryptographic hash functions model a random function, not a random permutation. A significant fraction of output hash values are expected to be unreachable and another fraction have multiple preim …
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