<PackageReference Include="BouncyCastle.Cryptography" Version="2.6.2" />

Org.BouncyCastle.Crypto.Digests.Sha3Digest

public class Sha3Digest : KeccakDigest
Implementation of SHA-3 based on following KeccakNISTInterface.c from http://keccak.noekeon.org/
namespace Org.BouncyCastle.Crypto.Digests { public class Sha3Digest : KeccakDigest { public Sha3Digest(); public Sha3Digest(int bitLength); public Sha3Digest(Sha3Digest source); } }