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Hash function

nouncandidate·updated May 9, 2026

A function that maps a bit string of arbitrary length to a fixed length bit string. Approved hash functions are specified in FIPS 180 and are designed to satisfy the following properties: 1. (One-way) It is computationally infeasible to find any input that maps to any new prespecified output, and 2. (Collision resistant) It is computationally infeasible to find any two distinct inputs that map to the same output.

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