1 files changed, 37 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.Core/Messaging/UnprotectedMessageException.cs b/src/DotNetOpenAuth.Core/Messaging/UnprotectedMessageException.cs
new file mode 100644
index 0000000..2f21184
--- /dev/null
+++ b/src/DotNetOpenAuth.Core/Messaging/UnprotectedMessageException.cs
@@ -0,0 +1,37 @@
+//-----------------------------------------------------------------------
+// <copyright file="UnprotectedMessageException.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.Messaging {
+	using System;
+	using System.Globalization;
+
+	/// <summary>
+	/// An exception thrown when messages cannot receive all the protections they require.
+	/// </summary>
+	[Serializable]
+	internal class UnprotectedMessageException : ProtocolException {
+		/// <summary>
+		/// Initializes a new instance of the <see cref="UnprotectedMessageException"/> class.
+		/// </summary>
+		/// <param name="faultedMessage">The message whose protection requirements could not be met.</param>
+		/// <param name="appliedProtection">The protection requirements that were fulfilled.</param>
+		internal UnprotectedMessageException(IProtocolMessage faultedMessage, MessageProtections appliedProtection)
+			: base(string.Format(CultureInfo.CurrentCulture, MessagingStrings.InsufficientMessageProtection, faultedMessage.GetType().Name, faultedMessage.RequiredProtection, appliedProtection), faultedMessage) {
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="UnprotectedMessageException"/> class.
+		/// </summary>
+		/// <param name="info">The <see cref="System.Runtime.Serialization.SerializationInfo"/> 
+		/// that holds the serialized object data about the exception being thrown.</param>
+		/// <param name="context">The System.Runtime.Serialization.StreamingContext 
+		/// that contains contextual information about the source or destination.</param>
+		protected UnprotectedMessageException(
+		  System.Runtime.Serialization.SerializationInfo info,
+		  System.Runtime.Serialization.StreamingContext context)
+			: base(info, context) { }
+	}
+}