我是这样做的，在C＃中划分值 [英] Am I doing this right, Xoring values in C#

问题描述

大家好，

与我的上一组问题有点不同我是一个20位二进制数我试图以十六进制值进行Xor。

Hi All,
Bit different to my last set of questions I a 20 Bit Binary Number I am trying to Xor with a hex value.

 bool UseDefault;
// string SecuirtySeed = "000CEBAD";
 int PassKeyDefault = 8420;
 long SerialNumber = 0;
 string BinaryVersionSerialNumber = "";
 int LoopLength = 0;
 string BinVerSNLast20 = "";
 int IntVerSNLast20 = 0;
 int DigitLoop = 0;
 int[] DevInfoSerialNumber;
 Int32 SecuritySeedInt = 0x000CEBAD;
 Int64 Result;


 // MessageBox.Show("Serial Number Entered is "+txtSerialNumber.Text);

 SerialNumber = Convert.ToInt32(txtSerialNumber.Text);
 lblSerialNumber.Text = SerialNumber.ToString();

 BinaryVersionSerialNumber = Convert.ToString(SerialNumber, 2);

 lblSerialNumberCoded.Text = BinaryVersionSerialNumber.ToString();

 LoopLength = BinaryVersionSerialNumber.Length;

 //Need to know SECURITY SEED   0x000CEBAD
 BinVerSNLast20 = BinaryVersionSerialNumber.Substring(10, 20);
 lblTrimmedSerial.Text = BinVerSNLast20.ToString();

 IntVerSNLast20 = Convert.ToInt32(BinVerSNLast20);
 //and it with 5F's

 //        ^  Xor

 Result = (IntVerSNLast20 ^ SecuritySeedInt);
 MessageBox.Show(Result.ToString());

我成功地用子串

修剪二进制数的第一位，以生成我需要的数字Xor工作......

（注意我不是在尝试破解加密，只是想在测试阶段让生命变得更好......）

I have succeeded in trimming off the first bits of the binary number with a substring
to generate the number required I need the Xor to work...
(Note I am not trying hack some encryption, just want to make lives eaiser in the testing phase...)

推荐答案

所有这些东西都可以减少到

All that stuff could be reduced to

Int32 SerialNumber;
Int32 Result;
SerialNumber = Convert.ToInt32(txtSerialNumber.Text);
Result = (SerialNumber & 0x000FFFFF) ^ 0x000CEBAD;
MessageBox.Show(Result.ToString());

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