Security :: Riijandael Method Error/ Padding Is Invalid And Cannot Be Removed
Apr 15, 2010
I am using following code to encrypt and decrypt files. It works fine in windows application but shows an error in asp.net class. It's using Riijandael method.
Error : padding is invalid and cannot be removed
Code:Public Sub EncryptOrDecryptFile(ByVal strInputFile As String, _
ByVal strOutputFile As String, _
) [code]....
I have all application errors sent to my email. I keep getting this:
mysite.com/webresource.axd?d=yacsx7hz0irzn_i7ifr3morrek9u6srdkqxsjvpn3mw1&t=633598204507656250 Padding is invalid and cannot be removed.
[Exception Info]
Stack Trace: 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() [code]....
i googled and read to add machineKey in my web.config <system.web> which i did: <machineKey validationKey='0EFA95136AEA44850D5CEDDF0CC7502B1A009.....' decryptionKey='E88EB13ADB2C3D395193AA71DBB1E...' validation='SHA1'/>
and added <pages masterPageFile enableViewStateMac="true" viewStateEncryptionMode="Auto"> to my masterpage.But i keep getting that error.
I'm using the ChangePassword method of membership provider to change the password and one of the requirement before calling the ChangePassword is to retrieve the current password. But I'm getting error:
I'm getting the following error in our QA environment but only through the IIS7 reverse proxy. If I hit the application server directly it works fine. In our DEV environment it works fine through the proxy or directly.
I'm not really sure where to go with this, Server Error in '/' Application.
Padding is invalid and cannot be removed.
Description: An unhandled exception occurred during the execution of the current web request.
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. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:[CryptographicException: Padding is invalid and cannot be removed.] System.Security.Cryptography.RijndaelManagedTransform.DecryptData(Byte[] inputBuffer, Int32 inputOffset, [code].... Version Information: Microsoft .NET Framework Version:2.0.50727.4952; ASP.NET Version:2.0.50727.4927
We (out IT partner really) recently changed some DNS for a web farmed site we have so that the two production server have round-robin DNS switching between the two. Prior to this switch we didn't really have problems with WebResource.axd files. Since the switch, when we hit the live public URL, we get an error:
CryptographicException
Padding is invalid and cannot be removed.
When we hit the specific servers themselves, they load fine. I've researched the issue and it seems since they're sharing assets between two servers, we need to have a consistent machineKey in the web.config for each server so they can encrypt and decrypt consistently between the two. My questions are:
Can I generate a machineKey via a tool on the server, or do I need to write code to do this?
Do I just need to add the machineKey to the web.config on each server or do you think I'll need to do anything else to make the two server work together? (Both web.config's currently do not have a machineKey)
We're getting this InternalSubStringWithChecks exception with our application's healthMonitoring. This exception is like the Padding is invalid and cannot be removed exception where it's being recorded and we're getting a notification email but the end user is unaware that an actual error has happened. Though we don't want our event log filled up with this rubbish! The stack trace is:
Parameter name: length at System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy) at System.Web.Handlers.AssemblyResourceLoader.System.Web.IHttpHandler.ProcessRequest [code]...
Since installing the security patch for the ASP.NET Oracle Padding vunerability any user that was keeping themselves logged in to our site is getting error messages when hitting any page.
With custom errors switched off a user sees the following information
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
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.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
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.
[HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.]
We have a cookie management library that writes a cookie containing some sensitive information, encrypted with Rijndael. 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 is invalid and cannot be removed."
We are sure that the cookie value is valid because we tested it 10,000 times with random data in a unit test. There is something about what ASP.NET 2.0 does when it reads and writes the cookie that causes trouble.
I created a method in my class which will determine if an input is a numeric value or not.
Code:
[URL]
And even I input a numeric value in my entry, still I get the error message "Invalid entry". Can anyone from this community have an idea on how am I going to solve this issue.
App is imported in the parent web.config file, Tom and App have classes with the same names.To avoid errors resulting from ambiguous class names I removed the App namespace from the sub-directory where the Tom namespace is used.
However the namespace App is still imported on content pages that have a master page outside the Tom directory. This causes the aforementioned errors.Here is my dir structure
-Root Directory --Default.master --web.config (App is added in web.config) --Tom Sub-diretory ---web.config (App is removed in web.config) ---Content page that uses Default.master (Here is the problem) ---Page without master (Works OK)
I am using encryption/decryption logic from the following link: [URL] Code from this page is working but at times, its throwing an error while decyption as 'Length of the data to decrypt is invalid'. I have a very limited knowledge on this topic so I am no able to troubleshoot it further
I have a form that has contact fields, billing address, and shipping address. So if i fill out my contact information ONLY and left billing and shipping address blank then hit submit, the validation for the billing address and shipping address appears. Ok no problem, there is a check in each billing and shipping fields that once click on it copies the address from contact to billing or shipping fields. Everything works except for the validation messages. They are still there. Is there a way to remove the validation message after the textboxes are populated with data?
So basically when i open the page i get the error above.
I've removed-added the toolkit toolbox.The error occurs p.e. in MaskedEditvalidator when i remove the mask from
MaskedEditExtender.Ok i know that it probably needs a mask and it crashes but what the hell is the
C:UsersswaltherProjectsAspNetAjaxReleases30930AjaxControlToolkitSourceAjaxControlToolkitMaskedEditMaskedEditCommon.cs ?? I don't even use c: for any project.Who is swalther?WTH?
And is there a MaskedEditCommon.cs in the toolkit?I did not find any MaskedEditCommon.cs in whatever, version library or whatever i downloaded.
Error:[ArgumentOutOfRangeException: StartIndex cannot be less than zero. Parameter name: startIndex] System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy) +7490863 System.String.Substring(Int32 startIndex, Int32 length)
I am recently trying to set enough permissions to let web application write entries in System's "Event Log" .The following are the lines of code i added in web.config files:
The problem at the moment is that web.config generates the error "invalid syntax" if i include the line: <trust level="CustomMedium" originUrl=""/>. In case i remove the line , site compiles successfully. Did i go wrong any where with the above codes.
I just installed IIS and .net on my machine. I am trying to run basic default.aspx. I keep getting error: HTTP Error 405.0 - Method Not Allowed The page you are looking for cannot be displayed because an invalid method (HTTP verb) is being used.
I am creating an Asp.net web site which will support dynamic data. When I am creating a dynamic web site from Scratch (from template in VS) all is working fine. But when I am trying to add dynamic entity (.edmx) file and running the application I am getting following error
"The method 'Skip' is only supported for sorted input in LINQ to Entities. The method 'OrderBy' must be called before the method 'Skip'. "
I am trying to configure NHibernate on my console application in which I am trying to map an Employee class to a table Employee.I am getting below exception which I have no clue:
Class: class Employee { public int id; public string name; [code]...
have a working ASP.NET 3.5 webservice that accepts standard POST requests using an encoding type of application/x-www-form-urlencoded. I then added a method which needs to accept an uploaded file. We change the encoding type of the request to multipart/form-data so that we can get the file data and now we receive the following error:System.InvalidOperationException: Request format is invalid: multipart/form-data
I don't know what I'm making wrong.I have a submit button, and on click it should execute the funktion in the code behind, but I get the error that the funktion is undefined.this is my code in the .aspx webform:
I have seen 2 methods to handle error in project. One is using try catch in every method and another is using custom page and error log file .I know both method. Which one is the best method?
data source=mssql2008.chaiyohosting.com;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true
Error:
Invalid value for key 'attachdbfilename'.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Invalid value for key 'attachdbfilename'.
Source Error:
Line 20: protected void Login1_Authenticate(object sender, AuthenticateEventArgs e) Line 21: { Line 22: if (Membership.ValidateUser(Login1.UserName, Login1.Password)) Line 23: { Line 24: e.Authenticated = true;