Net Error Occurred While Decoding Oaep Padding
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Error Occurred While Decoding Oaep Padding Powershell
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Rsacryptoserviceprovider Oaep Padding
Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up RSACryptoServiceProvider error occurred while decoding OAEP padding up vote -1 down vote favorite I've read many articles regarding this problem and I cannot seem to find an
Rsa Oaep Padding C#
answer that solves my bug. I have a WCF service; my app sends the public RSA key generated and the service returns a set of AES key+IV encrypted with the public key, but when my app then tries to decrypt the keys, I either get "Error occurred while decoding OAEP padding" (if I pass true to useOAEP) or "The parameter is incorrect" (if I pass false to useOAEP). For simplicity, this is the entire code used put together, leaving Exception handling aside: public static string EncryptAES(byte[] aesKey, byte[] aesIV, string publicRSAKey) { using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider()) { rsa.FromXmlString(publicRSAKey); byte[] encryptedKey = rsa.Encrypt(aesKey, true); byte[] encryptedIV = rsa.Encrypt(aesIV, true); return string.Format("{0}{1}{2}", Convert.ToBase64String(encryptedKey), "\n", Convert.ToBase64String(encryptedIV)); } } public static byte[] Decrypt(string aesKeyorIV) { using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider()) { byte[] buffer = Convert.FromBase64String(aesKeyorIV); rsa.FromXmlString(RSA_Private_Key); return rsa.Decrypt(buffer, true); //Exception thrown here } } (RSA_Private_Key is generated in the static constructor using rsa.ToX
Common Language Runtime Internals and Architecture Question 1 Sign in to vote while doing c# decrypt with public key asymetic encryption method I am using public key of a digital
Rsacryptoserviceprovider Decrypt With Public Key
signature for encrypting. and private key for decrypting. I am able to encrypt the data successfully. rsacryptoserviceprovider encrypt but while decrypting i am getting the error as Error occurred while decoding OAEP padding.my piece of code is #region Test Encryption public void a() http://stackoverflow.com/questions/32322113/rsacryptoserviceprovider-error-occurred-while-decoding-oaep-padding { using (var rsa = new RSACryptoServiceProvider()) { // This String consists only Public Key Information String publicKeyOnly = rsa.ToXmlString(false); // This String consists both Private/Public Key information String publicPrivate = rsa.ToXmlString(true); } } //encrypt public byte[] b(String publicKeyOnly) { String s = "
Tips/Tricks Top Articles Beginner Articles Technical Blogs Posting/Update Guidelines Article Help Forum Article Competition Submit an article or tip Post your Blog quick http://www.codeproject.com/Questions/66541/Error-occurred-while-decoding-OAEP-padding answersQ&A Ask a Question View Unanswered Questions View All Questions... Linux questions C# questions ASP.NET questions SQL questions fabric questions discussionsforums All Message Boards... Application Lifecycle> Running a Business http://beachbc.blogspot.com/2008/12/rsa-in-c-net.html Sales / Marketing Collaboration / Beta Testing Work Issues Design and Architecture ASP.NET JavaScript C / C++ / MFC> ATL / WTL / STL Managed C++/CLI C# Free Tools oaep padding Objective-C and Swift Database Hardware & Devices> System Admin Hosting and Servers Java .NET Framework Android iOS Mobile SharePoint Silverlight / WPF Visual Basic Web Development Site Bugs / Suggestions Spam and Abuse Watch features Competitions News The Insider Newsletter The Daily Build Newsletter Newsletter archive Surveys Product Showcase Research Library CodeProject Stuff communitylounge Who's Who Most error occurred while Valuable Professionals The Lounge The Insider News The Weird & The Wonderful The Soapbox Press Releases Non-English Language > General Indian Topics General Chinese Topics help What is 'CodeProject'? General FAQ Ask a Question Bugs and Suggestions Article Help Forum Site Map Advertise with us About our Advertising Employment Opportunities About Us Ask a Question All Questions All Unanswered FAQ Error occurred while decoding OAEP padding Rate this: Please Sign up or sign in to vote. See more: C# Hi all, I have developed a web service that encrypts a connection string and passes back the encrypted string to a console application (test purposes). The web service runs on a different PC than the console application. But I keep receiving the following exception message: Error occurred while decoding OAEP padding. When I run the encrypt and decrypt code on the same PC everything works just fine?!?! Both the web service and the console application makes use of the same KeyContainerName. Encryption Method: private static string EncryptString(string inputString, int dwKeySi
encrypted string.Decrypt: takes an encrypted string and returns a plain text string.1)Server:Generate a RSA public and private key.Pass the public key in plain text to the client2)Client:Pass a plain string to RSAObjectPass encrypted string from RSAObject to Server.3)Server:Pass encrypted string to RSAObjectUse decrypted string from RSAObject.PROBLEMS:My origional code for encrypting and decrypting data:public string Encrypt(string plainText) { try { byte[] plainData = Encoding.UTF32.GetBytes(plainText); byte[] encryptedData = crypto.Encrypt(plainData, true); return Encoding.UTF32.GetString(encryptedData); } catch (Exception ex) { Console.WriteLine(ex.ToString()); return ""; } } public string Decrypt(string encryptedText) { try { byte[] encryptedData = Encoding.UTF32.GetString(encryptedText); byte[] plainData = crypto.Decrypt(encryptedData, true); return Encoding.UTF32.GetString(plainData); } catch (Exception ex) { Console.WriteLine(ex.ToString()); return ""; } }All I would get during decryption from crypto, a RSACryptoServiceProvider object, was one of two exceptions:Bad LengthError occurred while decoding OAEP padding.After reading up more on RSA I discovered that a UTF32(32bit) can't properly handle the data returned by crypto.Encrypt, therefore some of my bytes were being changed in the conversion process to UTF32, and therefor could not be decrypted. use Convert.ToBase64String(string)SOLUTION:Encrypt method needs to convert to a 64bit string.Decrypt method needs to convert from a 64bit string.fixed and working source code:public string Encrypt(string plainText) { try { byte[] plainData = Encoding.UTF32.GetBytes(plainText); byte[] encryptedData = crypto.Encrypt(plainData, true); return Convert.ToBase64String(encryptedData); } catch (Exception ex) { Console.WriteLine(ex.ToString()); return ""; } } public string Decrypt(string encryptedText) { try { byte[] encryptedData = Convert.FromBase64String(encryptedText); byte[] plainData = crypto.Decrypt(encryptedData, true); return Encoding.UTF32.GetString(plainData); } catch (Exception ex) { Console.WriteLine(ex.ToString()); return ""; } }cheers,-bb Posted by Bradley Beach at 3:38 PM Labels: .NET, c#, cryptogrophy, Network, programming, RSA No comments: Post a Comment Newer Post Home Subscribe to: Post Comments (Atom) Blog Archive ► 2010 (1) ► June (1) ► 2009 (5) ► October (1) ► May (2) ► April (1