# MIT License
#
# Copyright (c) 2026 Giulio2002
#
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# of this software and associated documentation files (the "Software"), to deal
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# furnished to do so, subject to the following conditions:
#
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# Ethereum Keccak-256, not SHA3-256. Packed little-endian input/output.
# Source and proof boundary: https://github.com/Giulio2002/bend-keccak
import Base
import ./src/keccak.bend as K
import ./src/hex.bend as H

def keccak256(words: Array<U32>, byte_length: Nat) -> Maybe<&1,Array<U32>>:
  K.keccak256(words,byte_length)

def hex(digest: Array<U32>) -> String:
  H.hex(digest)