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// Copyright 2018 The Alephium Authors
// This file is part of the alephium project.
//
// The library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the library. If not, see .

package org.alephium.crypto

import akka.util.ByteString
import org.bouncycastle.crypto.Digest
import org.bouncycastle.crypto.digests.KeccakDigest

import org.alephium.serde.RandomBytes

class Keccak256(val bytes: ByteString) extends RandomBytes {
  def length: Int = Keccak256.length

  def toByte32: Byte32 = Byte32.unsafe(bytes)
}

object Keccak256 extends BCHashSchema[Keccak256](HashSchema.unsafeKeccak256, _.bytes) {
  def length: Int = 32

  def provider(): Digest = new KeccakDigest(length * 8)
}