C＃でRijndaelメソッドを使ってファイル内の暗号化されたデータを正しく復号化できませんでしたか？

Question

私は暗号化と復号化を使用する2つの方法を持っていますが、私はファイルデータを暗号化して読み込み、暗号化されたデータでファイルを修正します。私は奇妙な文字が返された場合、元のではない： これらの関数です：

public void EncryptFile(string[] conexion) 
     { 

      var mydocpath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData); 


      var inputFile = mydocpath + @"\ProjectCONFIG.sigc"; 

      const string password = @"*PROJECT-CONFIG-FILE-ENCRYPTED-2016*"; // Your Key Here 

      var cryptFile = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData); 
      var fsEncrypt = new FileStream(inputFile, FileMode.Create); 

      var rmCrypto = new RijndaelManaged(); 

      Rfc2898DeriveBytes pwdGen = new Rfc2898DeriveBytes(password, 10000); 
      rmCrypto.BlockSize = 256; 

      byte[] key = pwdGen.GetBytes(rmCrypto.KeySize/8); //This will generate a 256 bits key 
      byte[] iv = pwdGen.GetBytes(rmCrypto.BlockSize/8); //This will generate a 256 bits IV 

      var cs = new CryptoStream(fsEncrypt, rmCrypto.CreateEncryptor(key, iv), CryptoStreamMode.Write); 
      StreamWriter streamWriter = new StreamWriter(cs); 
      streamWriter.WriteLine(conexion); 

      streamWriter.Close(); 
      cs.Close(); 
      fsEncrypt.Close(); 
     } 

     public string DecryptFile(string inputFile) 
     { 

      const string password = @"*PROJECT-CONFIG-FILE-ENCRYPTED-2016*"; // Your Key Here 

      var cryptFile = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData); 
      var fsEncrypt = new FileStream(inputFile, FileMode.Create); 

      var rmCrypto = new RijndaelManaged(); 

      Rfc2898DeriveBytes pwdGen = new Rfc2898DeriveBytes(password, 10000); 
      rmCrypto.BlockSize = 256; 

      byte[] key = pwdGen.GetBytes(rmCrypto.KeySize/8); //This will generate a 256 bits key 
      byte[] iv = pwdGen.GetBytes(rmCrypto.BlockSize/8); //This will generate a 256 bits IV 

      var cs = new CryptoStream(fsEncrypt, rmCrypto.CreateEncryptor(key, iv), CryptoStreamMode.Read); 

      StreamReader streamReader = new StreamReader(cs); 
      string conexion = streamReader.ReadLine(); 


      streamReader.Close(); 
      cs.Close(); 
      fsEncrypt.Close(); 

      return conexion; 
     } 

任意の提案......

Answer 1

@Artjom B.彼は私が読んでいました復号化機能でミスを犯し実現しました：

public string DecryptFile(string inputFile) 
     { 

      const string password = @"*PROJECT-CONFIG-FILE-ENCRYPTED-2016*"; // Your Key Here 

      var cryptFile = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData); 
      var fsEncrypt = new FileStream(inputFile, FileMode.Create); 

      var rmCrypto = new RijndaelManaged(); 

      Rfc2898DeriveBytes pwdGen = new Rfc2898DeriveBytes(password, 10000); 
      rmCrypto.BlockSize = 256; 

      byte[] key = pwdGen.GetBytes(rmCrypto.KeySize/8); //This will generate a 256 bits key 
      byte[] iv = pwdGen.GetBytes(rmCrypto.BlockSize/8); //This will generate a 256 bits IV 

// The mistake is that he was calling the CreateEncryptor function() 
       var cs = new CryptoStream(fsEncrypt, rmCrypto.CreateDecryptor(key, iv), CryptoStreamMode.Read); 

      StreamReader streamReader = new StreamReader(cs); 
      string conexion = streamReader.ReadLine(); 


      streamReader.Close(); 
      cs.Close(); 
      fsEncrypt.Close(); 

      return conexion; 
     }