C# server side TLS support
diff --git a/src/csharp/Grpc.IntegrationTesting/TestCredentials.cs b/src/csharp/Grpc.IntegrationTesting/TestCredentials.cs
new file mode 100644
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+++ b/src/csharp/Grpc.IntegrationTesting/TestCredentials.cs
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+#region Copyright notice and license
+
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using Google.ProtocolBuffers;
+using Grpc.Core;
+using Grpc.Core.Utils;
+using NUnit.Framework;
+using grpc.testing;
+
+namespace Grpc.IntegrationTesting
+{
+ /// <summary>
+ /// SSL Credentials for testing.
+ /// </summary>
+ public static class TestCredentials
+ {
+ public const string DefaultHostOverride = "foo.test.google.fr";
+
+ public const string ClientCertAuthorityPath = "data/ca.pem";
+ public const string ClientCertAuthorityEnvName = "SSL_CERT_FILE";
+
+ public const string ServerCertChainPath = "data/server1.pem";
+ public const string ServerPrivateKeyPath = "data/server1.key";
+
+ public static SslCredentials CreateTestClientCredentials(bool useTestCa)
+ {
+ string caPath = ClientCertAuthorityPath;
+ if (!useTestCa)
+ {
+ caPath = Environment.GetEnvironmentVariable(ClientCertAuthorityEnvName);
+ if (string.IsNullOrEmpty(caPath))
+ {
+ throw new ArgumentException("CA path environment variable is not set.");
+ }
+ }
+ return new SslCredentials(File.ReadAllText(caPath));
+ }
+
+ public static SslServerCredentials CreateTestServerCredentials()
+ {
+ var keyCertPair = new KeyCertificatePair(
+ File.ReadAllText(ServerCertChainPath),
+ File.ReadAllText(ServerPrivateKeyPath));
+ return new SslServerCredentials(new List<KeyCertificatePair> {keyCertPair});
+ }
+ }
+}