namespace Org.BouncyCastle.Tls.Crypto.Impl.BC { public sealed class BcChaCha20Poly1305 : TlsAeadCipherImpl { public BcChaCha20Poly1305(bool isEncrypting); public int DoFinal(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset); public int DoFinal(byte[] additionalData, byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset); public int GetOutputSize(int inputLength); public void Init(byte[] nonce, int macSize, byte[] additionalData); public void Reset(); public void SetKey(byte[] key, int keyOff, int keyLen); public void SetKey(ReadOnlySpan<byte> key); } }