1 files changed, 63 insertions, 0 deletions
diff --git a/crypto/src/tls/KeyExchangeAlgorithm.cs b/crypto/src/tls/KeyExchangeAlgorithm.cs
new file mode 100644
index 000000000..1dfa6db66
--- /dev/null
+++ b/crypto/src/tls/KeyExchangeAlgorithm.cs
@@ -0,0 +1,63 @@
+using System;
+
+namespace Org.BouncyCastle.Tls
+{
+    /// <summary>RFC 2246</summary>
+    /// <remarks>
+    /// Note that the values here are implementation-specific and arbitrary. It is recommended not to depend on the
+    /// particular values (e.g. serialization).
+    /// </remarks>
+    public abstract class KeyExchangeAlgorithm
+    {
+        /*
+         * NOTE: We interpret TLS 1.3 cipher suites as having a NULL key exchange
+         */
+        public const int NULL = 0;
+
+        public const int RSA = 1;
+        public const int RSA_EXPORT = 2;
+        public const int DHE_DSS = 3;
+        public const int DHE_DSS_EXPORT = 4;
+        public const int DHE_RSA = 5;
+        public const int DHE_RSA_EXPORT = 6;
+        public const int DH_DSS = 7;
+        public const int DH_DSS_EXPORT = 8;
+        public const int DH_RSA = 9;
+        public const int DH_RSA_EXPORT = 10;
+        public const int DH_anon = 11;
+        public const int DH_anon_EXPORT = 12;
+
+        /*
+         * RFC 4279
+         */
+        public const int PSK = 13;
+        public const int DHE_PSK = 14;
+        public const int RSA_PSK = 15;
+
+        /*
+         * RFC 4429
+         */
+        public const int ECDH_ECDSA = 16;
+        public const int ECDHE_ECDSA = 17;
+        public const int ECDH_RSA = 18;
+        public const int ECDHE_RSA = 19;
+        public const int ECDH_anon = 20;
+
+        /*
+         * RFC 5054
+         */
+        public const int SRP = 21;
+        public const int SRP_DSS = 22;
+        public const int SRP_RSA = 23;
+
+        /*
+         * RFC 5489
+         */
+        public const int ECDHE_PSK = 24;
+
+        /*
+         * GMT 0024-2014
+         */
+        public const int SM2 = 25;
+    }
+}