我收到以下错误.这似乎只是在我升级我的visual studio 2015以进行第一次更新后才开始.我在这里读过一些关于机器密钥问题的线程吗？我不知道如何解决它并防止它.目前,当我使用IIS express在调试中运行时,我在本地计算机上收到此错误.
Exception Details: System.Security.Cryptography.CryptographicException: Error occurred during a cryptographic operation.
Cache = db.UserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == userId); // place the entry in memory this.Deserialize((Cache == null) ? null : MachineKey.Unprotect(Cache.cacheBits,"ADALCache")); [CryptographicException: Error occurred during a cryptographic operation.] System.Web.Security.Cryptography.HomogenizingCryptoServiceWrapper.HomogenizeErrors(Func`2 func, Byte[] input) +115 System.Web.Security.Cryptography.HomogenizingCryptoServiceWrapper.Unprotect(Byte[] protectedData) +70 System.Web.Security.MachineKey.Unprotect(ICryptoServiceProvider cryptoServiceProvider, Byte[] protectedData, String[] purposes) +62 System.Web.Security.MachineKey.Unprotect(Byte[] protectedData, String[] purposes) +121 LEDES.Models.ADALTokenCache..ctor(String signedInUserId) in C:\Users\RLewis\Source\Workspaces\Workspace\LEDES\LEDES\Models\AdalTokenCache.cs:28 LEDES.Startup.b__7_0(AuthorizationCodeReceivedNotification context) in C:\Users\RLewis\Source\Workspaces\Workspace\LEDES\LEDES\App_Start\Startup.Auth.cs:54 Microsoft.Owin.Security.OpenIdConnect. d__1a.MoveNext() +4388 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +26 Microsoft.Owin.Security.OpenIdConnect. d__1a.MoveNext() +5776 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58 System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +28 Microsoft.Owin.Security.Infrastructure. d__0.MoveNext() +471 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58 System.Runtime.CompilerServices.TaskAwaiter.GetResult() +26 Microsoft.Owin.Security.Infrastructure. d__0.MoveNext() +218 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58 System.Runtime.CompilerServices.TaskAwaiter.GetResult() +26 Microsoft.Owin.Host.SystemWeb.IntegratedPipeline. d__5.MoveNext() +170 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58 System.Runtime.CompilerServices.TaskAwaiter.GetResult() +26 Microsoft.Owin.Security.Infrastructure. d__0.MoveNext() +525 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58 System.Runtime.CompilerServices.TaskAwaiter.GetResult() +26 Microsoft.Owin.Host.SystemWeb.IntegratedPipeline. d__5.MoveNext() +170 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58 System.Runtime.CompilerServices.TaskAwaiter.GetResult() +26 Microsoft.Owin.Host.SystemWeb.IntegratedPipeline. d__2.MoveNext() +166 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +26 Microsoft.Owin.Host.SystemWeb.Infrastructure.ErrorState.Rethrow() +26 Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.StageAsyncResult.End(IAsyncResult ar) +81 Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.EndFinalWork(IAsyncResult ar) +30 System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +380 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
以下是失败的代码 - 当我在设置项目时选择Azure身份验证时,这是由VS生成的.
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Data.Entity;
using System.Linq;
using System.Web;
using System.Web.Security;
using Microsoft.IdentityModel.Clients.ActiveDirectory;
namespace LEDES.Models
{
public class ADALTokenCache : TokenCache
{
private ApplicationDbContext db = new ApplicationDbContext();
private string userId;
private UserTokenCache Cache;
public ADALTokenCache(string signedInUserId)
{
// associate the cache to the current user of the web app
userId = signedInUserId;
this.AfterAccess = AfterAccessNotification;
this.BeforeAccess = BeforeAccessNotification;
this.BeforeWrite = BeforeWriteNotification;
// look up the entry in the database
Cache = db.UserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == userId);
// place the entry in memory
this.Deserialize((Cache == null) ? null : MachineKey.Unprotect(Cache.cacheBits,"ADALCache"));
}
// clean up the database
public override void Clear()
{
base.Clear();
var cacheEntry = db.UserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == userId);
db.UserTokenCacheList.Remove(cacheEntry);
db.SaveChanges();
}
// Notification raised before ADAL accesses the cache.
// This is your chance to update the in-memory copy from the DB, if the in-memory version is stale
void BeforeAccessNotification(TokenCacheNotificationArgs args)
{
if (Cache == null)
{
// first time access
Cache = db.UserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == userId);
}
else
{
// retrieve last write from the DB
var status = from e in db.UserTokenCacheList
where (e.webUserUniqueId == userId)
select new
{
LastWrite = e.LastWrite
};
// if the in-memory copy is older than the persistent copy
if (status.First().LastWrite > Cache.LastWrite)
{
// read from from storage, update in-memory copy
Cache = db.UserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == userId);
}
}
this.Deserialize((Cache == null) ? null : MachineKey.Unprotect(Cache.cacheBits, "ADALCache"));
}
// Notification raised after ADAL accessed the cache.
// If the HasStateChanged flag is set, ADAL changed the content of the cache
void AfterAccessNotification(TokenCacheNotificationArgs args)
{
// if state changed
if (this.HasStateChanged)
{
Cache = new UserTokenCache
{
webUserUniqueId = userId,
cacheBits = MachineKey.Protect(this.Serialize(), "ADALCache"),
LastWrite = DateTime.Now
};
// update the DB and the lastwrite
db.Entry(Cache).State = Cache.UserTokenCacheId == 0 ? EntityState.Added : EntityState.Modified;
db.SaveChanges();
this.HasStateChanged = false;
}
}
void BeforeWriteNotification(TokenCacheNotificationArgs args)
{
// if you want to ensure that no concurrent write take place, use this notification to place a lock on the entry
}
public override void DeleteItem(TokenCacheItem item)
{
base.DeleteItem(item);
}
}
}
来自调用堆栈的信息和发生CryptographicEsception的点发生
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