本文介绍了ADFS 2.0 SSO数据保护操作失败的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
大家好，
我正在使用VS 2010的标识培训套件示例实验室\ WebSitesAndIdentity \Source\Ex3-FederatingADFSv2
I am using Identity Training Kit for VS 2010 sample Labs\WebSitesAndIdentity\Source\Ex3-FederatingADFSv2
我有错误：
[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.]
System.Security.Cryptography.ProtectedData.Protect(Byte[] userData, Byte[] optionalEntropy, DataProtectionScope scope) +456
Microsoft.IdentityModel.Web.ProtectedDataCookieTransform.Encode(Byte[] value) +54
[InvalidOperationException: ID1074: возникло исключение CryptographicException при попытке зашифровать файл Cookie с использованием API ProtectedData (дополнительные сведения см. в тексте внутреннего исключения). При использовании IIS 7.5 это исключение может быть вызвано заданием для параметра пула приложений loadUserProfile значения FALSE. ]
Microsoft.IdentityModel.Web.ProtectedDataCookieTransform.Encode(Byte[] value) +145
Microsoft.IdentityModel.Tokens.SessionSecurityTokenHandler.ApplyTransforms(Byte[] cookie, Boolean outbound) +47
Microsoft.IdentityModel.Tokens.SessionSecurityTokenHandler.WriteToken(XmlWriter writer, SecurityToken token) +533
Microsoft.IdentityModel.Tokens.SessionSecurityTokenHandler.WriteToken(SessionSecurityToken sessionToken) +89
Microsoft.IdentityModel.Web.SessionAuthenticationModule.WriteSessionTokenToCookie(SessionSecurityToken sessionToken) +123
Microsoft.IdentityModel.Web.SessionAuthenticationModule.AuthenticateSessionSecurityToken(SessionSecurityToken sessionToken, Boolean writeCookie) +38
Microsoft.IdentityModel.Web.WSFederationAuthenticationModule.SetPrincipalAndWriteSessionToken(SessionSecurityToken sessionToken, Boolean isSession) +85
Microsoft.IdentityModel.Web.WSFederationAuthenticationModule.SignInWithResponseMessage(HttpRequest request) +583
Microsoft.IdentityModel.Web.WSFederationAuthenticationModule.OnAuthenticateRequest(Object sender, EventArgs args) +268
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
版本信息： Microsoft .NET Framework版本：4.0.30319; ASP.NET版本：4.0.30319.1
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1
请帮忙。
任何帮助都是非常感谢。
Any assistance would be greatly appreciated.
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