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Local search applied to preimage attacks.
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hashwalk
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README.md

README.md

Hashwalk

Hashwalk is an exercise in futility. It attempts to mount a preimage attack on a hash function by applying local search. We define the objective function of a byte string by the hamming distance between its hash and the target value. Naturally, a cryptographic hash function's range should exhibit no patterns whatsoever. This property, also known as the avalanche effect, should mean that a local search heuristic performs no better than randomly generating byte strings and hashing them.

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