相关疑难解决方法(0)

我需要传输xml文件,并且需要加密它们.我发现一些例子认为我很接近,但是当我解密文件时,我最终会遇到尾随垃圾字符.有一些关于这个的帖子,但我没有看到任何将完全有帮助.这是加密和解密代码.

private void EncryptFile(string inputFile, string outputFile, string key) {
    try {
        byte[] keyBytes;
        keyBytes = Encoding.Unicode.GetBytes(key);

        Rfc2898DeriveBytes derivedKey = new Rfc2898DeriveBytes(key, keyBytes);

        RijndaelManaged rijndaelCSP = new RijndaelManaged();
        rijndaelCSP.Key = derivedKey.GetBytes(rijndaelCSP.KeySize / 8);
        rijndaelCSP.IV = derivedKey.GetBytes(rijndaelCSP.BlockSize / 8);

        ICryptoTransform encryptor = rijndaelCSP.CreateEncryptor();

        FileStream inputFileStream = new FileStream(inputFile, FileMode.Open, FileAccess.Read);

        byte[] inputFileData = new byte[(int)inputFileStream.Length];
        inputFileStream.Read(inputFileData, 0, (int)inputFileStream.Length);

        FileStream outputFileStream = new FileStream(outputFile, FileMode.Create, FileAccess.Write);

        CryptoStream encryptStream = new CryptoStream(outputFileStream, encryptor, CryptoStreamMode.Write);
        encryptStream.Write(inputFileData, 0, (int)inputFileStream.Length);
        encryptStream.FlushFinalBlock();

        rijndaelCSP.Clear();
        encryptStream.Close();
        inputFileStream.Close();
        outputFileStream.Close();
    } …