1 files changed, 31 insertions, 0 deletions
diff --git a/projecttemplates/RelyingPartyLogic/OAuthResourceServer.cs b/projecttemplates/RelyingPartyLogic/OAuthResourceServer.cs
new file mode 100644
index 0000000..d935d56
--- /dev/null
+++ b/projecttemplates/RelyingPartyLogic/OAuthResourceServer.cs
@@ -0,0 +1,31 @@
+namespace RelyingPartyLogic {
+	using System;
+	using System.Collections.Generic;
+	using System.Linq;
+	using System.Text;
+	using System.Security.Cryptography;
+
+	public static class OAuthResourceServer {
+		private static readonly RSAParameters ResourceServerKeyPair = CreateRSAKey();
+
+		internal static RSACryptoServiceProvider CreateRSA() {
+			var rsa = new RSACryptoServiceProvider();
+			rsa.ImportParameters(ResourceServerKeyPair);
+			return rsa;
+		}
+
+		/// <summary>
+		/// Creates the RSA key used by all the crypto service provider instances we create.
+		/// </summary>
+		/// <returns>RSA data that includes the private key.</returns>
+		private static RSAParameters CreateRSAKey() {
+			// As we generate a new random key, we need to set the UseMachineKeyStore flag so that this doesn't
+			// crash on IIS. For more information: 
+			// http://social.msdn.microsoft.com/Forums/en-US/clr/thread/7ea48fd0-8d6b-43ed-b272-1a0249ae490f?prof=required
+			var cspParameters = new CspParameters();
+			cspParameters.Flags = CspProviderFlags.UseArchivableKey | CspProviderFlags.UseMachineKeyStore;
+			var asymmetricKey = new RSACryptoServiceProvider(cspParameters);
+			return asymmetricKey.ExportParameters(true);
+		}
+	}
+}