C＃编码转换

Question

我在C ++中有一个加密例程，我将其转换为C＃：

例：

public void main()
{
    string myPwd = "ÖFÖæ6";
    string pwdCoded = XEncrypt.EncryptData_Patch_x_Net(myPwd);
    //Result OK: ÖFÖæ–6
}

public static string EncryptData_Patch_x_Net(string Data)
{
    byte[] bytes = new byte[Data.Length];

    for (int n = 0; n < Data.Length; n++)
    {
        bytes[n] = (byte)Data[n];
    }

    System.Text.Encoding MyEncoding = System.Text.Encoding.Default;
    String MyResult = MyEncoding.GetString(bytes);
    return MyResult;
}

我需要使它从以下转换的逆例程：

ÖFÖæ–6到ÖFÖæ6（注意左字符串中有一个破折号）

我做了最后一个功能，但错误地执行了编码

public static string DecryptData_Patch_x_Net(string Data)
{
    byte[] bytes = new byte[Data.Length];

    for (int n = 0; n < Data.Length; n++)
    {
        bytes[n] = (byte)Data[n];
    }

    System.Text.Encoding MyEncoding = System.Text.Encoding.GetEncoding(1252);
    String MyResult = MyEncoding.GetString(bytes);
    return MyResult;
}

Answer 1

这不是加密，您实际上正在使它实际上变得复杂。

Encoding iso88591 = Encoding.GetEncoding(28591);
Encoding w1252 = Encoding.GetEncoding(1252);

//
string pwd = "ÖFÖæ\u00966"; //The SPA control character will not survice a Stackoverflow post
                            //So I use \u0096 to represent it

string result = w1252.GetString(iso88591.GetBytes(pwd)); //"ÖFÖæ–6"

string original = iso88591.GetString(w1252.GetBytes(result)); //"ÖFÖæ6" with the hidden control character before 6

Console.WriteLine(result == "ÖFÖæ–6"); //True
Console.WriteLine(original == "ÖFÖæ\u00966"); //True