namespace Org.BouncyCastle.Crypto.Generators { public abstract class BaseKdfBytesGenerator : IDerivationFunction { public IDigest Digest { get; } protected BaseKdfBytesGenerator(int counterStart, IDigest digest); public void Init(IDerivationParameters parameters); public int GenerateBytes(byte[] output, int outOff, int length); public int GenerateBytes(Span<byte> output); } }