Error occurred during a cryptographic operation.

[sara_t]

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Error occurred during a cryptographic operation.

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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: 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) +59
   System.Web.Security.FormsAuthentication.Decrypt(String encryptedTicket) +9842250
   CharmEshop.MvcApplication.FormsAuthentication_OnAuthenticate(Object sender, FormsAuthenticationEventArgs e) +146
   System.Web.Security.FormsAuthenticationModule.OnAuthenticate(FormsAuthenticationEventArgs e) +9747291
   System.Web.Security.FormsAuthenticationModule.OnEnter(Object source, EventArgs eventArgs) +80
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +136
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +69

[Moien Tajik]

همه ی راه حل های این لینک رو ببینید : http://stackoverflow.com/questions/2...g-forms-cookie