Error While Decoding Oaep Padding
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you error occurred while decoding oaep padding powershell might have Meta Discuss the workings and policies of this oaep padding c# site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers oaep padding java or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community error occurred while decoding oaep padding rsacryptoserviceprovider of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Error occurred while decoding OAEP padding up vote 11 down vote favorite 1 in continuation of the http://stackoverflow.com/questions/949907/error-occurred-while-decoding-oaep-padding question I have modified my code and now i am trying this code CspParameters cspParam = new
Rsacryptoserviceprovider Oaep Padding
CspParameters(); cspParam = new CspParameters(); cspParam.Flags = CspProviderFlags.UseMachineKeyStore; clsCertificates cc = new clsCertificates(); string a = ""; cc.OpenStoreIE(ref a); cc.SetProperties(); X509Certificate2 cert = new X509Certificate2(); cert = cc.x509_2Cert; RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(cspParam); //to gentrate private and public keys from the certificate rsa.FromXmlString(cert.PublicKey.Key.ToXmlString(false)); String publicKey = rsa.ToXmlString(false); // gets the public key String privateKey = rsa.ToXmlString(true); // gets the private key working if paramter is false if true give error key is not valid for use in specified state Response.Write(""); Response.Write(""); Response.Write("
Encrypting the string \"HelloThere\" with the public Key:
"); String str = "HelloThere"; RSACryptoServiceProvider RSA2 = new RSACryptoServiceProvider(cspParam); //---Load the Public key--- RSA2.FromXmlString(publicKey); //working with the folowing line instead of above but i need the keys of he certificte //RSA2.ToXmlString(true); Byte[] EncryptedStrAsByt = RSA2.Encrypt(System.Text.Encoding.Unicode.GetBytes(str), true); String EncryptedStr = System.Text.Encoding.Unicode.GetString(EncryptedStrAsByt); Response.Write(""); Response.Write("
Decrypting the Encrypted String with the P
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings
Rsa Oaep Padding C#
and policies of this site About Us Learn more about Stack Overflow c# decrypt with public key the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation rsacryptoserviceprovider decrypt with public key Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it http://stackoverflow.com/questions/954416/error-occurred-while-decoding-oaep-padding 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 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 http://stackoverflow.com/questions/32322113/rsacryptoserviceprovider-error-occurred-while-decoding-oaep-padding 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.ToXmlString(true)) (publicRSAKey is passed to the service by sending rsa.ToXmlString(false) in the static constuctor) I tried using Encrypt/Decrypt(byte[], false) but it didn't make any difference. I also tried Array.Reverse(encryptedKey) and then Array.Reverse(buffer). The private key is never sent/modified after it's set so that cannot be it. I'm out of ideas and debugging the WCF service
Common Language Runtime Internals and Architecture Question 1 Sign in to vote https://social.msdn.microsoft.com/Forums/vstudio/en-US/16420376-c0a5-4e14-91e0-a47e26dc00fa/error-occurred-while-decoding-oaep-padding?forum=clr while doing asymetic encryption method I am using public key of a digital signature for encrypting. and private key for decrypting. I am able to encrypt http://www.componentspace.com/Forums/1687/Error-occured-while-decoding-OAEP-padding the data successfully. but while decrypting i am getting the error as Error occurred while decoding OAEP padding.my piece of code is #region Test Encryption oaep padding public void a() { 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 = "
padding Error occured while decoding OAEP padding Post Reply Error occured while decoding OAEP padding View Options Author Message dfran02 dfran02 Posted Last Year #1687 New Member Group: Forum Members Posts: 3, Visits: 9 We're having problems decrypting an encrypted assertion. While searching, everything I've found on this topic suggest:1) the public and private key don't match2) we're trying to decrypt with a public keyNeither of those things are true. We've verified with our client that our public key is being used to encrypt the assertion. The keys match and the private key is being used to decrypt the assertion.Other things we've tried:1) made sure the x509certificate2 is using the machine key storage flag: X509KeyStorageFlags.MachineKeySet2) given full rights to the IIS user account on the machines for the Machine Keys directory in WindowsAre there any other things we should be checking?Heres the relevant code:...string key = {path to private key};X509Certificate2 decryptionKey = new X509Certificate2(key, _samlPrivateKeyPassword, X509KeyStorageFlags.MachineKeySet); encryptedSamlAssertion = samlResponse.GetEncryptedAssertions()[0];samlAssertion = encryptedSamlAssertion.Decrypt(decryptionKey.PrivateKey, null); // fails here Tags encryption Reply ComponentSpace ComponentSpace Posted Last Year #1688 ComponentSpace Development Group: Administrators Posts: 605, Visits: 1.9K The code looks fine.Typically padding errors occur when the wrong public key/certificate is used to encrypt the randomly generated symmetric key.If the matching private and public keys are being used then this will require more investigation.As an experiment, are you able to switch to usethe sp.cer/sp.pfx test certificate and private key that we ship?It would be good to check whether the issue still occurs with these.Have you tried encrypting a SAML assertion using our component and then decrypting it using your current .cer/.pfx certificate/private key?This will check that there's no issues with the certificate and private key.If there's still an issue please contact support@componentspace.com mentioning this post.We will need to get you to enable SAML trace so we can debug this further. RegardsComponentSpace Development Reply dfran02 dfran02 Posted Last Year #1691 New Member Group: Forum Members Posts: 3, Visits: 9 I was able to verify that the public and private keys are matching by manually encrypting the assertion then decrypting using our .cer and .pfx files.I've attached a saml trace from a failed decryption attempt. Attachments idp.log