RE: Bad Data Error - cryptoapitransform
From: MichaelDH (MichaelDH_at_discussions.microsoft.com)
Date: 11/04/04
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Date: Thu, 4 Nov 2004 09:39:02 -0800
Hello David,
sorry I haven't any glue too.
But I've the same issue and may be you solved it already and help me.
Cheers, Michael
"David Turner" wrote:
> I have the same ASP.NET application that is installed in two locations on the
> same web server, each with it's own application in IIS. One instance is our
> Intranet and uses Windows authentication, the other is our external website
> and uses Forms authentication.
>
> User's can log into each instance just fine, and as long as they only access
> one of the applications everything works fine.
>
> However, if a user logs into one application and then tries to access the
> other without first closing their browser and restarting, they get the
> following error...
>
> Bad Data.
>
> 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: Bad
> Data.
>
> 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: Bad Data.
> ]
> System.Security.Cryptography.CryptoAPITransform._DecryptData(IntPtr hKey,
> Byte[] rgb, Int32 ib, Int32 cb, Boolean fDone) +0
>
> System.Security.Cryptography.CryptoAPITransform.TransformFinalBlock(Byte[]
> inputBuffer, Int32 inputOffset, Int32 inputCount) +805
> System.Security.Cryptography.CryptoStream.FlushFinalBlock() +40
> System.Web.Configuration.MachineKey.EncryptOrDecryptData(Boolean
> fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length) +139
> System.Web.Security.FormsAuthentication.Decrypt(String encryptedTicket)
> +114
> Solomon.Global.Application_AuthenticateRequest(Object sender, EventArgs
> e) +632
>
> System.Web.SyncEventExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute() +60
> System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
> completedSynchronously) +87
>
>
>
> What do I need to do to prevent this error
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