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