Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.ServiceModel/System/ServiceModel/MsmqSecureHashAlgorithm.cs

@@ -0,0 +1,43 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel
+{
+    using System.ServiceModel.Channels;
+
+    public enum MsmqSecureHashAlgorithm
+    {
+        MD5,
+        Sha1,
+        Sha256,
+        Sha512
+    }
+
+    static class MsmqSecureHashAlgorithmHelper
+    {
+        public static bool IsDefined(MsmqSecureHashAlgorithm algorithm)
+        {
+            return algorithm == MsmqSecureHashAlgorithm.MD5 ||
+                algorithm == MsmqSecureHashAlgorithm.Sha1 ||
+                algorithm == MsmqSecureHashAlgorithm.Sha256 ||
+                algorithm == MsmqSecureHashAlgorithm.Sha512;
+        }
+
+        public static int ToInt32(MsmqSecureHashAlgorithm algorithm)
+        {
+            switch (algorithm)
+            {
+                case MsmqSecureHashAlgorithm.MD5:
+                    return UnsafeNativeMethods.CALG_MD5;
+                case MsmqSecureHashAlgorithm.Sha1:
+                    return UnsafeNativeMethods.CALG_SHA1;
+                case MsmqSecureHashAlgorithm.Sha256:
+                    return UnsafeNativeMethods.CALG_SHA_256;
+                case MsmqSecureHashAlgorithm.Sha512:
+                    return UnsafeNativeMethods.CALG_SHA_512;
+                default:
+                    return -1;
+            }
+        }
+    }
+}