From 599d707081d8092e2aaef8a60d92f92345b67eb8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?K=C3=A9vin=20Chalet?= <kevinchalet@gmail.com>
Date: Thu, 1 Sep 2016 01:42:59 +0200
Subject: [PATCH] Introduce OpenIddictBuilder.UseDataProtectionProvider()

---
 src/OpenIddict.Core/OpenIddictBuilder.cs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/OpenIddict.Core/OpenIddictBuilder.cs b/src/OpenIddict.Core/OpenIddictBuilder.cs
index f15f2541..b6f1a638 100644
--- a/src/OpenIddict.Core/OpenIddictBuilder.cs
+++ b/src/OpenIddict.Core/OpenIddictBuilder.cs
@@ -13,6 +13,7 @@ using System.Reflection;
 using System.Security.Cryptography.X509Certificates;
 using AspNet.Security.OpenIdConnect.Extensions;
 using JetBrains.Annotations;
+using Microsoft.AspNetCore.DataProtection;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.IdentityModel.Tokens;
@@ -617,6 +618,20 @@ namespace Microsoft.AspNetCore.Builder {
             return Configure(options => options.RefreshTokenLifetime = lifetime);
         }
 
+        /// <summary>
+        /// Configures OpenIddict to use a specific data protection provider
+        /// instead of relying on the default instance provided by the DI container.
+        /// </summary>
+        /// <param name="provider">The data protection provider used to create token protectors.</param>
+        /// <returns>The <see cref="OpenIddictBuilder"/>.</returns>
+        public virtual OpenIddictBuilder UseDataProtectionProvider(IDataProtectionProvider provider) {
+            if (provider == null) {
+                throw new ArgumentNullException(nameof(provider));
+            }
+
+            return Configure(options => options.DataProtectionProvider = provider);
+        }
+
         /// <summary>
         /// Sets JWT as the default token format for access tokens.
         /// </summary>