how to use XOR in c#

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I want to do XOR process in my window application. Suppose i have data like this:
XOR of (82 21 B3 00 00 01 DB 03 10 00 10) and i want to do this process.This data is in hexadecimal. How can i do this can any one solve this.

Posted 1-Feb-12 20:20pm

jaideepsinh

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5 solutions

Solution 1

I hope this will solve ur Problem.

http://msdn.microsoft.com/en-us/library/zkacc7k1.aspx[^]

exapmle:

C#

Convert.ToString(0xf8 ^ 0x3f ^ 0x3f, 16);

//16 convert result to hex

Posted 1-Feb-12 20:31pm

CRDave1988

Updated 2-Feb-12 15:17pm

v3

Comments

Rajesh Anuhya 2-Feb-12 21:17pm

Edited: Code Tags added
--RA

Solution 4

C#

class XOR
{
    static void Main()
    {
        // Logical exclusive-OR

        // When one operand is true and the other is false, exclusive-OR
        // returns True.
        Console.WriteLine(true ^ false);
        // When both operands are false, exclusive-OR returns False.
        Console.WriteLine(false ^ false);
        // When both operands are true, exclusive-OR returns False.
        Console.WriteLine(true ^ true);


        // Bitwise exclusive-OR

        // Bitwise exclusive-OR of 0 and 1 returns 1.
        Console.WriteLine("Bitwise result: {0}", Convert.ToString(0x0 ^ 0x1, 2));
        // Bitwise exclusive-OR of 0 and 0 returns 0.
        Console.WriteLine("Bitwise result: {0}", Convert.ToString(0x0 ^ 0x0, 2));
        // Bitwise exclusive-OR of 1 and 1 returns 0.
        Console.WriteLine("Bitwise result: {0}", Convert.ToString(0x1 ^ 0x1, 2));

        // With more than one digit, perform the exclusive-OR column by column.
        //    10
        //    11
        //    --
        //    01
        // Bitwise exclusive-OR of 10 (2) and 11 (3) returns 01 (1).
        Console.WriteLine("Bitwise result: {0}", Convert.ToString(0x2 ^ 0x3, 2));

        // Bitwise exclusive-OR of 101 (5) and 011 (3) returns 110 (6).
        Console.WriteLine("Bitwise result: {0}", Convert.ToString(0x5 ^ 0x3, 2));

        // Bitwise exclusive-OR of 1111 (decimal 15, hexadecimal F) and 0101 (5)
        // returns 1010 (decimal 10, hexadecimal A).
        Console.WriteLine("Bitwise result: {0}", Convert.ToString(0xf ^ 0x5, 2));

        // Finally, bitwise exclusive-OR of 11111000 (decimal 248, hexadecimal F8)
        // and 00111111 (decimal 63, hexadecimal 3F) returns 11000111, which is
        // 199 in decimal, C7 in hexadecimal.
        Console.WriteLine("Bitwise result: {0}", Convert.ToString(0xf8 ^ 0x3f, 2));
    }
}

Posted 1-Feb-12 20:54pm

Rakesh Meel

Solution 5

You may use the following to achieve that:

C#

byte[] d = ...;
byte e = (byte)d.Aggregate(0, (a, b) => a ^ b);

Andi

Posted 2-Feb-12 7:22am

Andreas Gieriet

Updated 2-Feb-12 7:23am

v2

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Rajesh Anuhya · Accepted Answer · 2012-02-01T20:31:00

Solution 2

Use ^ for bitwise XOR in C#, for example:

C#

a = a ^ c;   (or simply:   a ^= c;)

Here is my Method for checksum calucation, have it

C#

static private byte CalCheckSum(byte[] _PacketData,int PacketLength)
       {
           Byte _CheckSumByte = 0x00;
           for (int i = 0; i < PacketLength; i++)
               _CheckSumByte ^= _PacketData[i];
           return _CheckSumByte;
       }

Thanks
--RA

Posted 1-Feb-12 20:31pm

Rajesh Anuhya

Updated 1-Feb-12 20:35pm

v2

Comments

Rajesh Anuhya 2-Feb-12 2:35am

My answer is updated
--RA

Sridhar Patnayak 2-Feb-12 2:41am

Good one 5+

Rajesh Anuhya 2-Feb-12 2:42am

Thanks Sridhar.
--RA

BillWoodruff 3-Feb-12 0:11am

+5 excellent answer that has valuable educational content that goes "beyond" the OP's question: very useful !

Rajesh Anuhya 3-Feb-12 1:15am

Thanks Bill
--RA

Gh0stman 2-Mar-15 12:09pm

Thank you so much for this!

Abhinav S · Accepted Answer · 2012-02-01T20:31:00

Solution 3

You can XOR using the ^ symbol.
Try out something like

C#

int d1 = Convert.ToInt32(hex1, 16);
int d2 = Convert.ToInt32(hex2, 16);
int r = dec1 ^ dec2;

Posted 1-Feb-12 20:31pm

Abhinav S