<PackageReference Include="BouncyCastle.Cryptography" Version="2.3.1" />

Org.BouncyCastle.Crypto.Engines.ChaChaEngine

public class ChaChaEngine : Salsa20Engine
Implementation of Daniel J. Bernstein's ChaCha stream cipher.
namespace Org.BouncyCastle.Crypto.Engines { public class ChaChaEngine : Salsa20Engine { public ChaChaEngine(); public ChaChaEngine(int rounds); } }