namespace Org.BouncyCastle.Tls.Crypto.Impl { public abstract class AbstractTlsSecret : TlsSecret { protected byte[] m_data; protected abstract AbstractTlsCrypto Crypto { get; } public virtual int Length { get; } protected static byte[] CopyData(AbstractTlsSecret other); protected AbstractTlsSecret(byte[] data); protected virtual void CheckAlive(); public virtual byte[] CalculateHmac(int cryptoHashAlgorithm, byte[] buf, int off, int len); public abstract TlsSecret DeriveUsingPrf(int prfAlgorithm, string label, byte[] seed, int length); public virtual void Destroy(); public virtual byte[] Encrypt(TlsEncryptor encryptor); public virtual byte[] Extract(); public abstract TlsSecret HkdfExpand(int cryptoHashAlgorithm, byte[] info, int length); public abstract TlsSecret HkdfExtract(int cryptoHashAlgorithm, TlsSecret ikm); public virtual bool IsAlive(); } }