- Initial commit

Runtime/3rdParty/BouncyCastle/tls/crypto/impl/bc/BcTlsDH.cs

@@ -0,0 +1,43 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto.Impl.BC
+{
+    /// <summary>Support class for ephemeral Diffie-Hellman using the BC light-weight library.</summary>
+    public class BcTlsDH
+        : TlsAgreement
+    {
+        protected readonly BcTlsDHDomain m_domain;
+
+        protected AsymmetricCipherKeyPair m_localKeyPair;
+        protected DHPublicKeyParameters m_peerPublicKey;
+
+        public BcTlsDH(BcTlsDHDomain domain)
+        {
+            this.m_domain = domain;
+        }
+
+        public virtual byte[] GenerateEphemeral()
+        {
+            this.m_localKeyPair = m_domain.GenerateKeyPair();
+
+            return m_domain.EncodePublicKey((DHPublicKeyParameters)m_localKeyPair.Public);
+        }
+
+        public virtual void ReceivePeerValue(byte[] peerValue)
+        {
+            this.m_peerPublicKey = m_domain.DecodePublicKey(peerValue);
+        }
+
+        public virtual TlsSecret CalculateSecret()
+        {
+            return m_domain.CalculateDHAgreement((DHPrivateKeyParameters)m_localKeyPair.Private, m_peerPublicKey);
+        }
+    }
+}
+#pragma warning restore
+#endif