1 files changed, 52 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.OAuth2.AuthorizationServer/OAuth2/AuthorizationServerAccessToken.cs b/src/DotNetOpenAuth.OAuth2.AuthorizationServer/OAuth2/AuthorizationServerAccessToken.cs
new file mode 100644
index 0000000..c577a0a
--- /dev/null
+++ b/src/DotNetOpenAuth.OAuth2.AuthorizationServer/OAuth2/AuthorizationServerAccessToken.cs
@@ -0,0 +1,52 @@
+//-----------------------------------------------------------------------
+// <copyright file="AuthorizationServerAccessToken.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.OAuth2 {
+	using System;
+	using System.Collections.Generic;
+	using System.Diagnostics.Contracts;
+	using System.Linq;
+	using System.Security.Cryptography;
+	using System.Text;
+	using DotNetOpenAuth.Messaging;
+	using DotNetOpenAuth.OAuth2.ChannelElements;
+
+	/// <summary>
+	/// An access token minted by the authorization server that can be serialized for transmission to the client.
+	/// </summary>
+	public class AuthorizationServerAccessToken : AccessToken {
+		/// <summary>
+		/// Initializes a new instance of the <see cref="AuthorizationServerAccessToken"/> class.
+		/// </summary>
+		public AuthorizationServerAccessToken() {
+		}
+
+		/// <summary>
+		/// Gets or sets the crypto service provider with the asymmetric private key to use for signing access tokens.
+		/// </summary>
+		/// <returns>A crypto service provider instance that contains the private key.</returns>
+		/// <value>Must not be null, and must contain the private key.</value>
+		/// <remarks>
+		/// The public key in the private/public key pair will be used by the resource
+		/// servers to validate that the access token is minted by a trusted authorization server.
+		/// </remarks>
+		public RSACryptoServiceProvider AccessTokenSigningKey { get; set; }
+
+		/// <summary>
+		/// Gets or sets the key to encrypt the access token.
+		/// </summary>
+		public RSACryptoServiceProvider ResourceServerEncryptionKey { get; set; }
+
+		/// <summary>
+		/// Serializes this instance to a simple string for transmission to the client.
+		/// </summary>
+		/// <returns>A non-empty string.</returns>
+		protected internal override string Serialize() {
+			var formatter = CreateFormatter(this.AccessTokenSigningKey, this.ResourceServerEncryptionKey);
+			return formatter.Serialize(this);
+		}
+	}
+}