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Length Of The Data To Decrypt Is Invalid C#


Thank you. I'm trying to encrypt data but whenever I run this error appears what's wrong with my code?.ERROR:Length of the data to decrypt is invalid. I now have the follwing resistant error: Length of the data to decrypt is invalid Line 70: cs.Read(fromEncrypted, 0, fromEncrypted.Length); I need a fix please..... Please consider to not save SSN if you don't have real justification for this. weblink

I didn't think I should transmit this? –Mr Shoubs Jan 2 '14 at 10:37 1 @MrShoubs There should be no problem in sending the salt unencrypted (indeed, this is specified Not the answer you're looking for? The second problem is that you are also deriving the IV from the password. There doesn't seem to be any other solution on that link besides that it shouldnt be set to Auto if you are using a web-farm. 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#

switch (algorithmID) { case EncryptionAlgorithm.DES: { objCryptoService = new DESCryptoServiceProvider(); objCryptoService.Mode = CipherMode.CBC; break; } case EncryptionAlgorithm.TripleDES: { objCryptoService = new TripleDESCryptoServiceProvider(); objCryptoService.Mode = CipherMode.CBC; break; } case EncryptionAlgorithm.RC2: { objCryptoService But a cut-off version of the string. /jim Jim Guest April 5th,02:35 PM #3 Re: Length of the data to decrypt is invalid Dear Jim, In my case it is different, more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation What early computers had excellent BASIC (or other language) at bootup?

This is from within asp.net I'm assuming. Joe K. "Bishoy George" wrote in message news:O7p%phx.gbl... >> >> I can't see how you call those 2 functions, but I had something of the >> same, I encrypted a If you record a new similiar web test with VS2011, whether it has the same issue? Encryption And Decryption In C# Key size will be defined based on the number of the key // bytes.

The Code: -------------------------------------------------- using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.IO; using System.Text; using System.Security.Cryptography; public class MyEncryption : Flushfinalblock Length Of The Data To Decrypt Is Invalid. Are people of Nordic Nations "happier, healthier" with "a higher standard of living overall than Americans"? By [email protected] in forum PERL Modules Replies: 0 Last Post: November 16th, 04:21 PM Length of data to decrypt is invalid Rijndael By hivie in forum ASP.NET Security Replies: 2 Last What are the benefits of an oral exam?

In this example we assume that this /// passphrase is an ASCII string. /// /// /// Salt value used along with passphrase to generate password. If you need this information just to verify identity - you can use last 4 digits or hash. IV = Encoding.ASCII.GetBytes("init vec is big."); } else { IV = Encoding.ASCII.GetBytes("init vec"); } } else { //Des only works with an 8 byte key. Privacy Statement| Terms of Use| Contact Us| Advertise With Us| CMS by Umbraco| Hosted on Microsoft Azure Feedback on ASP.NET| File Bugs| Support Lifecycle 12,676,576 members (29,655 online) Sign in Email

Flushfinalblock Length Of The Data To Decrypt Is Invalid.

It didn't have any problems encrypting. It seems no coincidence that you're having problems at exactly 1KB of output. Length Of The Data To Decrypt Is Invalid C# In that case you need to make sure you read to EOF so that the CryptoStream can deal with the final block, rather than stopping after readBytes. Length Of The Data To Decrypt Is Invalid In Mvc plaintext = srDecrypt.ReadToEnd(); } } } } return plaintext; } Advices more then welcome, I've been battling with the decryption whole day.

byte[] initVectorBytes = Encoding.ASCII.GetBytes(initVector); byte[] saltValueBytes = Encoding.ASCII.GetBytes(saltValue); // Convert our ciphertext into a byte array. have a peek at these guys RijndaelManaged symmetricKey = new RijndaelManaged(); // It is reasonable to set encryption mode to Cipher Block Chaining // (CBC). Lily gave same suggestion about the issue in that new thread, you can check it. If we try to record a new web tests for your app, does it have the same error? 3. Padding Is Invalid And Cannot Be Removed.

And 3 Web Servers. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. Preserving Vertices How can I stop Alexa from ordering things if it hears a voice on TV? http://juicecoms.com/is-invalid/the-state-information-is-invalid-for-this-page-and-might-be-corrupted-invalid-viewstate.html RijndaelManaged symmetricKey = new RijndaelManaged(); // It is reasonable to set encryption mode to Cipher Block Chaining // (CBC).

One or two iterations /// should be enough. /// /// /// Initialization vector (or IV). Browse other questions tagged c# cryptography rijndaelmanaged or ask your own question. Allowed values are: 128, 192, and 256. /// Longer keys are more secure than shorter keys. /// /// /// Decrypted string value. /// /// /// Most of

if (cipherText == null || cipherText.Length <= 0) throw new ArgumentNullException("cipherText"); // Declare the string used to hold // the decrypted text.

Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: Cryptographic exception - Length of the data to decrypt is invalid Can this number be written in (3^x) - 1 format? ​P​i​ =​= ​3​.​2​ When was today's radar measurement of the Earth-Sun distance made and by who? By rolling his own way, he very nearly put a huge security hole in his application that was found not by good analysis (as would be the case with a decent Anything that can be explained to shed light on this issue would be greatly appreciated.

swEncrypt.Write(plainText); } encrypted = msEncrypt.ToArray(); SaveData(encrypted); } } } // Return the encrypted bytes from the memory stream. Invalid length for a Base-64 char array. current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. this content cipherText = enc.Encrypt(plainText, key); // Retrieve the intialization vector and key.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL) Top Experts Last 24hrsThis month OriginalGriff 160 Peter Leow 90 ppolymorphe return Encoding.ASCII.GetString(plainText); } This is nothing more than a adaptation off of the books Console app that is used to test it. And if you will get "0xFFAA" - Encoding.ASCII.GetBytes will not give you a byte array with { 0xFF, 0xAA } data. Not the answer you're looking for?

Note that using ASCII is generally a bad idea though. You need to at least FlushFinalBlock() the sending CryptoStream in order to ensure that the final block (which the receiving stream is looking for) is sent. Does every data type just boil down to nodes with pointers? To that end, I have no idea as to what needs to be done to fix it so that I get 100% encryption/decryption based on a string and supplied key.

using (MemoryStream msEncrypt = new MemoryStream()) { using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write)) { using (StreamWriter swEncrypt = new StreamWriter(csEncrypt)) { //Write all data to the stream. key = Encoding.ASCII.GetBytes("password12345678"); if ... cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length); // Finish encrypting. streamSocket.Receive(array, maxRead, SocketFlags.None) : streamSocket.Receive(array, SocketFlags.None); stream.Write(array, 0, read); position += read; } } -> using (stream) { int read = array.Length; while ((read = streamSocket.Receive(array, read, SocketFlags.None)) > 0) {

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 return cipherText; } ///

/// Decrypts specified ciphertext using Rijndael symmetric key algorithm. /// /// /// Base64-formatted ciphertext value. /// /// /// Passphrase from 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 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.

IV = enc.IV; key = enc.Key; // Look at your cipher text and initialization vector. After Base64 encryption (which results in a 4/3 expansion of the output) 751 bytes of plaintext puts you just under 1024 bytes of encrypted data. Until I found out the field in >> the table wasn't long enough to hold all of the encrypted string. What can I change to make it work? –Patrick Jun 3 '09 at 12:02 If the enciphering stream is in read mode, the final block will be lost if

Copyright 2006 - 2014, JustSkins.com 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 key = Encoding.ASCII.GetBytes("password12345678"); if (EncryptionAlgorithm.Rijndael == algorithm) { // Must be 16 bytes for Rijndael. byte[] cipherTextBytes = memoryStream.ToArray(); // Close both streams.