spgilmore
I am trying to encrypt and decrypt data using RSA. Ultimately, I need to be able to place an existing public key into the RSACryptoServiceProvider and encrypt using that, but for now, I'd settle for any success at all. I have this simple test. I assure you that the LoadFromFile() and SaveToFile() methods are working, and the raw data is a valid byte array with the correct data in it. The line (as indicated below) which encrypts data throws an exception, stating "unspecified error".I get this behavior on two machines (Windows XP Pro SP2 and Windows XP Home SP2), but not on a third machine (Windows 2000 Pro). What must I do to get it working?Any ideas are welcome.private void button2_Click(object sender, EventArgs e){// Load the raw data to be encrypted.byte[] lOriginal = LoadFromFile(@"c:\firstfile.txt");// Create an encryptor with new keysRSACryptoServiceProvider lRSA = new RSACryptoServiceProvider();// Encrypt the raw data. //This line throws CryptographicException: "Unspecified Error"byte[] lEncrypted = lRSA.Encrypt(lOriginal, false); // Store the encrypted data.SaveTofile(@"c:\encrypted.txt", lEncrypted);}