.:: XOR Splitter ::.
C# XOR File Splitter
This program uses the XOR algorithm to break a file into two pieces. You cannot retrieve the old file until you merge the two pieces that were created earlier.
The way this software works is by generating a random byte for each byte of the input file. The random byte and the file byte are bitwise XORed together. The resulting value and and the random byte are both written to a separate file. There is no way to recover the original file without merging the two generated files together using XOR on each byte of each file.
Here is a mathematical example of how the algorithm works...
First byte of file: 125
Randomly generated byte: 212
Value after XOR on both values: 169
To get original value back, you must XOR 169 and 212: 125
This process is done for every byte of the file.
DOWNLOAD GUI C# CODE >>
DOWNLOAD CLASS/CONSOLE C# CODE >>
DOWNLOAD DLL LIBRARY >>
DLL LIBRARY USEAGE
1 2 3 4 | using Persion.XOR; XOR.XOR_SPLIT_FUNCTION(@"D:\phone1.jpg", @"D:\xorout1.xor", @"D:\xorout2.xor"); XOR.XOR_JOIN_FUNCTION(@"D:\xorout1.xor", @"D:\xorout2.xor", @"D:\out_phone_001.jpg"); |
C# GUI CODE ....
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 | using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.IO; using System.Threading; namespace XOR_FILE_001 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { //open file dialog OpenFileDialog ofd1 = new OpenFileDialog(); ofd1.Filter = "All Files (*.*)|*.*"; ofd1.ShowDialog(); textBox1.Text = ofd1.FileName; } private void exitToolStripMenuItem_Click(object sender, EventArgs e) { } private void button2_Click(object sender, EventArgs e) { //save file dialog SaveFileDialog sfd1 = new SaveFileDialog(); sfd1.Filter = "All Files (*.*)|*.*"; sfd1.ShowDialog(); textBox2.Text = sfd1.FileName; } private void button3_Click(object sender, EventArgs e) { //save file dialog SaveFileDialog sfd2 = new SaveFileDialog(); sfd2.Filter = "All Files (*.*)|*.*"; sfd2.ShowDialog(); textBox3.Text = sfd2.FileName; } private void button4_Click(object sender, EventArgs e) { //open file dialog OpenFileDialog ofd3 = new OpenFileDialog(); ofd3.Filter = "All Files (*.*)|*.*"; ofd3.ShowDialog(); textBox4.Text = ofd3.FileName; } private void button7_Click(object sender, EventArgs e) { try { //status change status_text.Text = "LOADING FILE..."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); //load input byte[] inputArray = File.ReadAllBytes(textBox1.Text); //populate and encode output array Random rnd1 = new Random(Environment.TickCount); Queue<int> line1 = new Queue<int>(); Queue<int> line2 = new Queue<int>(); status_text.Text = "ENCODING FILE..."; for (int i = 0; i < inputArray.Length; i++) { byte offset = (byte)rnd1.Next(0, 256); line1.Enqueue(offset); byte encoded = inputArray[i]; line2.Enqueue(encoded ^ offset); } //convert queue to arrays int[] ar_line1 = line1.ToArray(); int[] ar_line2 = line2.ToArray(); byte[] byte_line1 = new byte[ar_line1.Length]; byte[] byte_line2 = new byte[ar_line2.Length]; for (int i = 0; i < ar_line1.Length; i++) { byte_line1[i] = (byte)ar_line1[i]; byte_line2[i] = (byte)ar_line2[i]; } //write to file status_text.Text = "WRITING FILES..."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); File.WriteAllBytes(textBox2.Text, byte_line1); File.WriteAllBytes(textBox3.Text, byte_line2); //done status_text.Text = "READY."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); } catch(Exception e1) { //show error status_text.Text = "ERROR."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); MessageBox.Show("ERROR SPLITTING FILE.\n\n" + e1.Message); } } private void button5_Click(object sender, EventArgs e) { //open file dialog OpenFileDialog ofd5 = new OpenFileDialog(); ofd5.Filter = "All Files (*.*)|*.*"; ofd5.ShowDialog(); textBox5.Text = ofd5.FileName; } private void button6_Click(object sender, EventArgs e) { //save file dialog SaveFileDialog sfd6 = new SaveFileDialog(); sfd6.Filter = "All Files (*.*)|*.*"; sfd6.ShowDialog(); textBox6.Text = sfd6.FileName; } private void button8_Click(object sender, EventArgs e) { try { //status change status_text.Text = "READING INPUT FILES..."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); //load input byte[] inputArray1 = File.ReadAllBytes(textBox4.Text); byte[] inputArray2 = File.ReadAllBytes(textBox5.Text); //status change status_text.Text = "MERGING FILES..."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); //validate sizes if (inputArray1.Length == inputArray2.Length) { // combine and store output Queue<byte> outputArray = new Queue<byte>(); for (int i = 0; i < inputArray1.Length; i++) { int outCombine = inputArray1[i] ^ inputArray2[i]; outputArray.Enqueue((byte)outCombine); } //load output array byte[] ar_line2 = outputArray.ToArray(); //write to file status_text.Text = "WRITING OUTPUT FILE..."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); File.WriteAllBytes(textBox6.Text, ar_line2); //done status_text.Text = "READY."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); } else { //show error status_text.Text = "ERROR."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); MessageBox.Show("INPUT FILES ARE DIFFERENT SIZE."); } } catch(Exception e2) { //show error status_text.Text = "ERROR."; this.Refresh(); Application.DoEvents(); Thread.Sleep(1000); MessageBox.Show("ERROR MERGING FILES.\n\n" + e2.Message); } } private void fileToolStripMenuItem_Click(object sender, EventArgs e) { } private void fileToolStripMenuItem_Click_1(object sender, EventArgs e) { Application.Exit(); } private void Form1_Load(object sender, EventArgs e) { } private void aBOUTToolStripMenuItem_Click(object sender, EventArgs e) { //load about form Form2 myNewForm = new Form2(); myNewForm.ShowDialog(this); } } } |
C# CLASS WITHOUT GUI
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.IO; namespace Persion.XOR { public class XOR { public static void XOR_SPLIT_FUNCTION(string input_file1, string output_file1, string output_file2) { try { //load input byte[] inputArray = File.ReadAllBytes(input_file1); //populate and encode output array Random rnd1 = new Random(Environment.TickCount); Queue<int> line1 = new Queue<int>(); Queue<int> line2 = new Queue<int>(); for (int i = 0; i < inputArray.Length; i++) { byte offset = (byte)rnd1.Next(0, 256); line1.Enqueue(offset); byte encoded = inputArray[i]; line2.Enqueue(encoded ^ offset); } //convert queue to arrays int[] ar_line1 = line1.ToArray(); int[] ar_line2 = line2.ToArray(); byte[] byte_line1 = new byte[ar_line1.Length]; byte[] byte_line2 = new byte[ar_line2.Length]; for (int i = 0; i < ar_line1.Length; i++) { byte_line1[i] = (byte)ar_line1[i]; byte_line2[i] = (byte)ar_line2[i]; } File.WriteAllBytes(output_file1, byte_line1); File.WriteAllBytes(output_file2, byte_line2); } catch (Exception e1) { //show error Console.WriteLine("ERROR SPLITTING FILE.\n\n" + e1.Message); } } public static void XOR_JOIN_FUNCTION(string input_file1, string input_file2, string output_file1) { try { //load input byte[] inputArray1 = File.ReadAllBytes(input_file1); byte[] inputArray2 = File.ReadAllBytes(input_file2); //validate sizes if (inputArray1.Length == inputArray2.Length) { // combine and store output Queue<byte> outputArray = new Queue<byte>(); for (int i = 0; i < inputArray1.Length; i++) { int outCombine = inputArray1[i] ^ inputArray2[i]; outputArray.Enqueue((byte)outCombine); } //load output array byte[] ar_line2 = outputArray.ToArray(); //write to file File.WriteAllBytes(output_file1, ar_line2); } else { //show error Console.WriteLine("INPUT FILES ARE DIFFERENT SIZE."); } } catch (Exception e2) { //show error Console.WriteLine("ERROR JOINING FILES.\n\n" + e2.Message); } } } class Program { static void Main(string[] args) { XOR.XOR_SPLIT_FUNCTION(@"D:\phone1.jpg", @"D:\xorout1.xor",@"D:\xorout2.xor"); XOR.XOR_JOIN_FUNCTION(@"D:\xorout1.xor", @"D:\xorout2.xor", @"D:\out_phone_001.jpg"); } } } |