Hi,

Exchange Version: Exchange 2013 CU2

Im trying to import our public Wildcard Certificate onto our two new Exchange 2013 CAS servers (this is a clean demo environment which has never had any other version of Exchange installed).

When I try to access OWA and ECP I get the below message:

Any ideas? I found some articles buit they are related to certificates assigned by a private PKI.

Server Error in '/owa' Application.

Invalid provider type specified.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Security.Cryptography.CryptographicException: Invalid provider type specified.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[CryptographicException: Invalid provider type specified.
]
   System.Security.Cryptography.Utils.CreateProvHandle(CspParameters parameters, Boolean randomKeyContainer) +5598202
   System.Security.Cryptography.Utils.GetKeyPairHelper(CspAlgorithmType keyType, CspParameters parameters, Boolean randomKeyContainer, Int32 dwKeySize, SafeProvHandle& safeProvHandle, SafeKeyHandle& safeKeyHandle) +138
   System.Security.Cryptography.RSACryptoServiceProvider.GetKeyPair() +221
   System.Security.Cryptography.X509Certificates.X509Certificate2.get_PrivateKey() +516
   Microsoft.Exchange.HttpProxy.FbaModule.ParseCadataCookies(HttpApplication httpApplication) +1222
   Microsoft.Exchange.HttpProxy.FbaModule.OnBeginRequestInternal(HttpApplication httpApplication) +254
   Microsoft.Exchange.HttpProxy.<>c__DisplayClass8.<OnBeginRequest>b__7() +1539
   Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate) +40
   Microsoft.Exchange.HttpProxy.Diagnostics.SendWatsonReportOnUnhandledException(MethodDelegate methodDelegate) +408
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +80
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +165

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18045