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Asp.net Cryptographicexception Length Of The Data To Decrypt Is Invalid


I tried searching the web but only found answers to problems that arise when using Encoding when encrypting and decrypting a single string. Welcome to the Coding Forums, the place to chat about anything related to programming and coding languages. If it is the same issue, would you mind discussing this issue in that new thread? I have found that while most strings work with the four symmetric algorithms I have enabled for the class (DES, RC2, Rijndael, and TripleDES), sometimes I receive a cryptographicexception Length of http://wrrd.org/is-invalid/ora-06550-is-invalid.html

All contents are copyright of their authors. He is using Rijndael? cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length); // Finish encrypting. Login using Answers In Focus How To Write Your First Technical Article Getting Started with Bootstrap C# Corner Wishes You Merry Christmas and Happy Holidays! http://stackoverflow.com/questions/20680934/length-of-the-data-to-decrypt-is-invalid-when-string-751-characters

Length Of The Data To Decrypt Is Invalid C#

It seems no coincidence that you're having problems at exactly 1KB of output. No, create an account now. You can even try ignoring the ajax calls, see http://stackoverflow.com/questions/2882484/visual-studio-2008-ignoring-ajax-calls-in-load-test-results Thanks, Anujhttp://www.anujchaudhary.com Friday, January 13, 2012 2:19 AM 0 Sign in to vote I tried, still getting the same error.Sathish Friday, 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, Boolean useLegacyMode, IVType ivType) at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) --- End

Allowed values are: 128, 192, and 256. /// Longer keys are more secure than shorter keys. /// /// /// Decrypted string value. /// /// /// Most of Description: An unhandled exception occurred during the execution of the current web request. No, create an account now. Encryption And Decryption In C# streamSocket.Receive(array, maxRead, SocketFlags.None) : streamSocket.Receive(array, SocketFlags.None); stream.Write(array, 0, read); position += read; } } } This is the method I use to set up the ciphers.

Maybe this forum is better for you http://forums.asp.net/ Check these links: http://forums.asp.net/t/1492435.aspx/1 http://forums.asp.net/t/1019325.aspx/1 http://evonet.com.au/system-security-cryptography-cryptographicexception-length-of-the-data-to-decrypt-is-invalid/ Yin Marked as answer by SDET69 Monday, January 23, 2012 10:21 AM Wednesday, January 18, What is so wrong with thinking of real numbers as infinite decimals? There's a bug report here, but special characters don't seem to be the problem. https://www.codeproject.com/Questions/109523/Length-of-the-data-to-decrypt-is-invalid Help with a logarithm problem Why doesn't Darth Vader's force-choke work and where is his lightsaber?

Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies No Flaming or Trolling. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Giacomo. 2/17/2009 4:16 AM Sebastian Leupold www.dnnwerk.deJoined: 3/8/2004 Posts: 44973 Re: PROBLEM : Length of the data to decrypt is inval This error seems to be caused

Flushfinalblock Length Of The Data To Decrypt Is Invalid.

Rolling your own security code is almost always a bad idea. Thanks in advance. Length Of The Data To Decrypt Is Invalid C# Specify the size of the key in bytes (instead of bits). Padding Is Invalid And Cannot Be Removed. Block ciphers have a fixed block size they process, and unless you are using a cipher mode that converts the block cipher to a stream cipher, there will be padding that

For the benefit of the community and to protect the integrity of the ecosystem, please observe the following posting guidelines: No Advertising. http://wrrd.org/is-invalid/the-ear-project-is-invalid.html Reply suchiprashan... 8 Posts Re: Validation Key Jul 09, 2012 11:42 AM|suchiprashant|LINK try putting in web.config Reply mtrujillo86 17 Posts Re: Validation Key Jul 10, 2012 11:58 AM|mtrujillo86|LINK We verified that the machine key is inside the web.configs of the other two servers. ------------------------------------------- Exception: System.Web.HttpException (0x80004005): Validation of viewstate MAC failed. SHA1 hashes are a bit slower, but more secure than MD5 hashes. /// /// /// Number of iterations used to generate password. Cryptostream

Silly me... –Patrick Jun 4 '09 at 16:25 add a comment| up vote 1 down vote After the comment made by Jeffrey Hantin, I changed some lines in receiveFile to using string cipherText = Convert.ToBase64String(cipherTextBytes); // Return encrypted string. So I > didn't pass the encrypted string to my decrypt fundtion. his comment is here Browse other questions tagged c# cryptography rijndaelmanaged or ask your own question.

If during the encryption, a space is part of the encrypted string, it can throw the above error. It takes just 2 minutes to sign up (and it's free!). Insults are not welcome.

Please post a screen shot about the failed request.

Regards. Password creation can be done in several iterations. You will have to read more bytes from the socket than the size of the file permits in order to read the padding. –Jeffrey Hantin Jun 3 '09 at 19:34 No Profanity, Racism, or Prejudice.

this is not "roll your own." Though, there is a good point to be made, that developers need to be careful about how they use encryption. –Cheeso Jun 3 '09 at MemoryStream memoryStream = new MemoryStream(); // Define cryptographic stream (always use Write mode for encryption). I have deployed my modules on production environment . weblink Terms of Service Layout: fixed | fluid CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100 Blog Sign in Join ASP.NET Home Get Started Learn Hosting Downloads

Do you need your password? You need a static value and it has to be the same for all the server. ... However 752 bytes results in an additional block (16 bytes) of output, which after Base64 encoding results in 1024 bytes. Any post that looks like trolling / poaching will be removed.

But a cut-off version of the string. /jim Jim Andersen, Apr 5, 2006 #2 Advertisements Bishoy George Guest Dear Jim, In my case it is different, I just store the The readBytes in sendFile() is not used yet, I forgot to remove it. Bishoy George Guest I made a class based on RijndaelManaged class. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm.

More About Us... This password will be generated from the specified // passphrase and salt value.