Nov 8, 2010 I used below code in ASp.NET web forms code behined. In fact, they are just warnings that can be ignored on most of the cases, but they can be a real problem when they bury other events and the forest do Here's some useful thread for your reference: #Gridview, paging and googlebot (and other spiders) http://groups.google.com/group/micro...rk.aspnet/brow se_thread/thread/296d5f89a750d960/ Hope this helps. Really a nice article, it worked for me very good job. http://amigasuperbit.com/padding-is/padding-is-invalid-and-cannot-be-removed-c-aes.html
How can I solved it.? and/or other countries. Regards,Walter Wang (firstname.lastname@example.org, remove 'online.')Microsoft Online Community Support================================================= =When responding to posts, please "Reply to Group" via your newsreader sothat others may learn and benefit from your issue.================================================= =This posting is Maybe you can look at the IIS logs to see if you're having some pool recycling that's making your request not to validate. –Eduardo Campañó Nov 23 '08 at 23:14
It resulted in the padding error. The cookie encrypts and decrypts fine in unit tests (using Moq), works fine for MVC web applications, but when called from an ASP.net 2.0 website, the cookie cannot be decrypted. "Padding 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 and when it goes back and callls it it no longer exists and so the error blows.
Stack Trace: [ViewStateException: Invalid viewstate. The problem here was one of the CSS the customer was using, here is the relevant excerpt: cursor:pointer; width:15px; height:15px; float:left; background-repeat:no-repeat;background-position:50%; background-image:url(WebResource.axd?d=h5orERdAXqJwNOs03yyPelp7bMUUMOtSL2yUIRd-e h2-cuX6WPyygZ3af2jYqwPfNQQAbG75SUCIun2YdKD8uQ2&t=633059379620000000); As you can see the background image If I detected a bot what do I do to stop it serving invalid responses the errors all seem to come from webResource and ScriptResource requests. Additional Information: Padding Is Invalid And Cannot Be Removed. I am also experiencing a "Exception has been thrown by the target of an invocation" error message from the same issue.
MC bruce barker wrote: it unable to produce a valid viewstate for a postback. When published to a test server, we're getting intermittent errors on the server. Do you want to know when a feature you care about is added or when a bug fixed? This should give you a hint on what to do… WebResource.axd is just an httpHandler that wraps several resources within the same DLL.
asked 4 years ago viewed 64624 times active 8 months ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Linked 1 Rijndael padding or length is invalid 0 What is I used the information at this link to set a machineKey. Regards MC --------Error--------- Padding is invalid and cannot be removed. --------Stack Trace--------- Current Path:/WebResource.axd at System.Security.Cryptography.RijndaelManagedTransf orm.DecryptData(Byte inputBuffer, Int32 inputOffset, Int32 inputCount, Byte& outputBuffer, Int32 outputOffset, PaddingMode paddingMode, Boolean fLast) at It is in charge of returning from little .gif files for serving the arrows of the ASP:Menu control, to .js files governing the behavior of the menu itself.
Replace the RijndaelManaged class to AESManaged one. https://blogs.msdn.microsoft.com/carloc/2008/12/18/padding-is-invalid-an-cannot-be-removed-or-webpartmanager-is-undefined/ It's using Riijandael method.Error : padding is invalid and cannot be removedCode:Public Sub EncryptOrDecryptFile(ByVal strInputFile As String, _ ByVal strOutputFile As String, _ ) [code].... Padding Is Invalid And Cannot Be Removed Decrypt If I hit the application server directly it works fine. Padding Is Invalid And Cannot Be Removed. Rijndaelmanaged There were also a lot of fragmented responses that broke the ajax as parts of the page were missing.
Roberto De Sanctis says: July 6, 2007 at 10:49 am I had same problem , i`m not in a webfarm (single machine) , i had a machinekey in correct format (validationKey, http://amigasuperbit.com/padding-is/padding-is-invalid-and-cannot-be-removed-vb-net.html Client IP: xxx.xxx.xxx.xxxPort: 3588User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6.5; .NET CLR 2.0.50727; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)ViewState: s0toPCu7bxkB7a3G+KTxawY3ILf1qunZyIqNBKg8xSoqY2BkWIUCJAHKFKo2RnJwReferer: Path: /][HttpException (0x80004005): Validation of viewstate Exception Details: System.Security.Cryptography.CryptographicException: Padding is invalid and cannot be removed.Source Error:An unhandled exception was generated during the execution of the current web request. Any ideas? C# Decrypt Padding Is Invalid And Cannot Be Removed
Visual Studio ALM MVP View all posts by Ricci Gian Maria Posted on June 20, 2007Author Ricci Gian MariaCategories GeneralTags Uncategorized 4 thoughts on “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 If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. Source You need to set the machine key to be the same on all servers.
Below aredetails for one of the errors that showed up in my error log. its only happening on pages with a script manager/update panel. Depending on how busy is your web server you can see them appear from time to time or up to every few minutes, thus filling your EventLog and being from a
Since the cookies remained -- boom! You will not be able to get rid of these warning messages completely, but you can certainly reduce them using the steps provided. Only one webserver is in use here." ... –eglasius Mar 8 '09 at 20:20 looking back on this problem, this was most likely scenario –Ben Scheirman Mar 2 '10 I changed one method signature and now have over 25,000 errors.
This answer may not suitable for everyone.) Change the algorithm class. Running Mist with INFURA How often should I replace windscreen wiper blades? UI for ASP.NET AJAX Resources Buy Try Feed for this thread 5 posts, 0 answers Marco du Plessis 3 posts Member since: Apr 2009 Posted 14 May 2010 Link to this have a peek here Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionSte p.System.Web.HttpApplication.IExecutionStep.Execut e() at System.Web.HttpApplication.ExecuteStep(IExecutionS tep step, Boolean& completedSynchronously) --------Server Variables--------- APPL_MD_PATH: /LM/W3SVC/643/ROOT APPL_PHYSICAL_PATH: C:\Sites\Single23\webroot\ AUTH_TYPE: AUTH_USER: AUTH_PASSWORD: LOGON_USER: REMOTE_USER: CERT_COOKIE: CERT_FLAGS: CERT_ISSUER: CERT_KEYSIZE: CERT_SECRETKEYSIZE: CERT_SERIALNUMBER: CERT_SERVER_ISSUER: CERT_SERVER_SUBJECT:
the error occours when i try to run the code FlushFinalBlock();here is my code:[Code].... Hardcoded links to resources In this case we were randomly getting the following (SSL was involved here, but is should not really make a difference): Padding is invalid and cannot be Vadim Gavrilyuk http://eTutorials.org/ Vadim Gavrilyuk,http://etutorials.org/ Reply ashmetry Member 512 Points 279 Posts Re: Padding is invalid and cannot be removed Dec 04, 2007 04:25 PM|ashmetry|LINK Getting the same thing on my My code below is where i get the key etc and if the cryptoMode is false it will call the decrypt method, which is where the exception occurs: public void Cryptography(XmlDocument
During that lapse, the application pool might have been recycled, recompiled, the server restarted, etc, thus changing the value of t and thus, rendering the older t value useless (the cryptographic But I am just running this on development machine.