System.Security.Cryptography.CryptographicException: Padding is invalid and cannot be removed.

Discussion in 'ASP .Net' started by Amelyan, Aug 12, 2007.

  1. Amelyan

    Amelyan Guest

    Why does this happen? How to fix it?

    Once in a while I get error in ~/ScriptResource.axd?d=...

    System.Reflection.TargetInvocationException: Exception has been thrown by
    the target of an invocation. --->
    System.Security.Cryptography.CryptographicException: Padding is invalid and
    cannot be removed.

    at
    System.Security.Cryptography.RijndaelManagedTransform.DecryptData(Byte[]
    inputBuffer, Int32 inputOffset, Int32 inputCount, Byte[]& outputBuffer,
    Int32 outputOffset, PaddingMode paddingMode, Boolean fLast)

    at
    System.Security.Cryptography.RijndaelManagedTransform.TransformFinalBlock(Byte[]
    inputBuffer, Int32 inputOffset, Int32 inputCount)

    at System.Security.Cryptography.CryptoStream.FlushFinalBlock()

    at
    System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean
    fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Boolean
    useValidationSymAlgo)

    at System.Web.UI.Page.DecryptString(String s)

    --- End of inner exception stack trace ---

    at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[]
    arguments, SignatureStruct& sig, MethodAttributes methodAttributes,
    RuntimeTypeHandle typeOwner)

    at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[]
    arguments, Signature sig, MethodAttributes methodAttributes,
    RuntimeTypeHandle typeOwner)

    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags
    invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean
    skipVisibilityChecks)

    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags
    invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)

    at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)

    at System.Web.Handlers.ScriptResourceHandler.DecryptString(String s)

    at
    System.Web.Handlers.ScriptResourceHandler.DecryptParameter(NameValueCollection
    queryString)

    at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContext
    context)

    at
    System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext
    context)

    at
    System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

    at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
    completedSynchronously)
    Amelyan, Aug 12, 2007
    #1
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