编码使用字节数组转换为字符串，反之亦然 [英] Encoding to use to convert Bytes array to String and vice-versa

问题描述

我用这个code加密字符串（基本上，这是对的 MSDN上 Rijndael的类）：

I use this code to encrypt a string (basically, this is the example given on the Rijndael class on MSDN):

public static String AESEncrypt(String str2Encrypt, Byte[] encryptionKey, Byte[] IV)
{
    Byte[] encryptedText;

    using (RijndaelManaged rijAlg = new RijndaelManaged())
    {
        // Use the provided key and IV
        rijAlg.Key = encryptionKey;
        rijAlg.IV = IV;

        // Create a decrytor to perform the stream transform
        ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV);

        // Create the streams used for encryption
        using (MemoryStream msEncrypt = new MemoryStream())
        using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
        {
            using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
            {
                // Write all data to the stream
                swEncrypt.Write(str2Encrypt);
            }

            encryptedText = msEncrypt.ToArray();
        }
    }

    return Encoding.Default.GetString(encryptedText);
}

我用 Encoding.Default 字节数组转换为字符串，但我不相信这是一个很好的解决方案。我的目标是存储加密的文本（如密码......）在文件中。我是否应该继续与 Encoding.Default 或使用 Encoding.UTF8Encoding 或其他什么东西？

I use Encoding.Default to convert a byte array to a string but I'm not sure it's a good solution. My goal is to store encrypted text (such as passwords...) in files. Should I continue with Encoding.Default or use Encoding.UTF8Encoding or something else?

可以在对存储的值的负面影响，当我尝试进行加密和解密他们，如果将文件移动到不同的操作系统？

Can that have negative consequences on the stored values when I try to encrypt and decrypt them if the files are moved onto different OS'?

推荐答案

您应该的绝对不会的使用的Encoding 以任意的二进制数据转换为文本。 编码是当你得到的二进制数据这是真正带codeD文本 - 这不是

You should absolutely not use an Encoding to convert arbitrary binary data to text. Encoding is for when you've got binary data which genuinely is encoded text - this isn't.

相反，使用<一个href=\"http://msdn.microsoft.com/en-us/library/system.convert.tobase64string.aspx\"><$c$c>Convert.ToBase64String为en code中的二进制数据，文本，然后去code。使用<一个href=\"http://msdn.microsoft.com/en-us/library/system.convert.frombase64string.aspx\"><$c$c>Convert.FromBase64String.

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