Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.IdentityModel/System/IdentityModel/Metadata/KeyDescriptor.cs

@@ -0,0 +1,63 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IdentityModel.Tokens;
+
+namespace System.IdentityModel.Metadata
+{
+    /// <summary>
+    /// Defines the key descriptor.
+    /// </summary>
+    public class KeyDescriptor
+    {
+        SecurityKeyIdentifier _ski;
+        KeyType _use = KeyType.Unspecified;
+        Collection<EncryptionMethod> _encryptionMethods = new Collection<EncryptionMethod>();
+
+        /// <summary>
+        /// Empty constructor.
+        /// </summary>
+        public KeyDescriptor()
+            : this(null)
+        {
+        }
+
+        /// <summary>
+        /// Constructs with a security key identifier.
+        /// </summary>
+        /// <param name="ski">The <see cref="SecurityKeyIdentifier"/> for this instance.</param>
+        public KeyDescriptor(SecurityKeyIdentifier ski)
+        {
+            _ski = ski;
+        }
+
+        /// <summary>
+        /// Gets or sets the <see cref="SecurityKeyIdentifier"/>.
+        /// </summary>
+        public SecurityKeyIdentifier KeyInfo
+        {
+            get { return _ski; }
+            set { _ski = value; }
+        }
+
+        /// <summary>
+        /// Gets or sets the <see cref="KeyType"/>.
+        /// </summary>
+        public KeyType Use
+        {
+            get { return _use; }
+            set { _use = value; }
+        }
+
+        /// <summary>
+        /// Gets the collection of <see cref="EncryptionMethod"/>.
+        /// </summary>
+        public ICollection<EncryptionMethod> EncryptionMethods
+        {
+            get { return _encryptionMethods; }
+        }
+    }
+}