在使用OWIN / Katana的Azure上，数据保护操作失败 [英] The data protection operation was unsuccessful on Azure using OWIN / Katana

问题描述

我尝试在运行在Azure上的基于OWIN / Katana的APS.NET MVC网站上实施密码重置。

  userManager.UserTokenProvider = new DataProtectorTokenProvider< ApplicationUser>（provider.Create（PasswordReset））
  

但是当我尝试生成

任何帮助都将不胜感激。

/ p>

  var resetToken = await UserManager.GeneratePasswordResetTokenAsync（user.Id）; 
 
 System.Security.Cryptography.CryptographicException：数据保护操作未成功。这可能是因为没有为当前线程的用户上下文加载用户配置文件，这可能是线程模拟时的情况。 
 at System.Security.Cryptography.ProtectedData.Protect（Byte [] userData，Byte [] optionalEntropy，DataProtectionScope scope）
在System.Security.Cryptography.DpapiDataProtector.ProviderProtect（Byte [] userData）
 at System.Security.Cryptography.DataProtector.Protect（Byte [] userData）
 at Microsoft.Owin.Security.DataProtection.DpapiDataProtector.Protect（Byte [] userData）
 at Microsoft.AspNet.Identity .Owin.DataProtectorTokenProvider`2。< GenerateAsync> d__0.MoveNext（）
 ---从引发异常的上一个位置的堆栈跟踪结束 -  
在System.Runtime.CompilerServices.TaskAwaiter。 ThrowForNonSuccess（任务任务）
在System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）
在Microsoft.AspNet.Identity.UserManager`2。< GenerateUserTokenAsync> d__e9.MoveNext（）
  

解决方案

请参阅我的我的回答这个问题。一个更简单的解决方案可以通过使用 IAppBuilder.GetDataProtectionProvider（）

I'm trying to implement password reset on an OWIN/Katana based APS.NET MVC website running in Azure.

It works fine when run locally but fails in production.

I create a UserToken Provider

 userManager.UserTokenProvider = new DataProtectorTokenProvider<ApplicationUser>(provider.Create("PasswordReset"))

But when I attempt to generate the token as follows I get an exception show at end.

Any assistance would be appreciated.

Mat

var resetToken = await UserManager.GeneratePasswordResetTokenAsync(user.Id);

System.Security.Cryptography.CryptographicException: The data protection operation was unsuccessful. This may have been caused by not having the user profile loaded for the current thread's user context, which may be the case when the thread is impersonating.
   at System.Security.Cryptography.ProtectedData.Protect(Byte[] userData, Byte[] optionalEntropy, DataProtectionScope scope)
   at System.Security.Cryptography.DpapiDataProtector.ProviderProtect(Byte[] userData)
   at System.Security.Cryptography.DataProtector.Protect(Byte[] userData)
   at Microsoft.Owin.Security.DataProtection.DpapiDataProtector.Protect(Byte[] userData)
   at Microsoft.AspNet.Identity.Owin.DataProtectorTokenProvider`2.<GenerateAsync>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNet.Identity.UserManager`2.<GenerateUserTokenAsync>d__e9.MoveNext()

解决方案

Please see my my answer to this question. A much simpler solution can be achieved by utilizing IAppBuilder.GetDataProtectionProvider()

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