using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Crypto.Parameters; namespace Org.BouncyCastle.Tls.Crypto.Impl.BC { public class BcTlsDH : TlsAgreement { protected readonly BcTlsDHDomain m_domain; protected AsymmetricCipherKeyPair m_localKeyPair; protected DHPublicKeyParameters m_peerPublicKey; public BcTlsDH(BcTlsDHDomain domain) { m_domain = domain; } public virtual byte[] GenerateEphemeral() { m_localKeyPair = m_domain.GenerateKeyPair(); return m_domain.EncodePublicKey((DHPublicKeyParameters)m_localKeyPair.Public); } public virtual void ReceivePeerValue(byte[] peerValue) { m_peerPublicKey = m_domain.DecodePublicKey(peerValue); } public virtual TlsSecret CalculateSecret() { return m_domain.CalculateDHAgreement((DHPrivateKeyParameters)m_localKeyPair.Private, m_peerPublicKey); } } }