LISTING PROGRAM. 1. Form Menu Utama. Universitas Sumatera Utara

Transkripsi

1 LISTING PROGRAM 1. Form Menu Utama using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; using hybrid.controller; namespace KriptografiHybrid.Controller public partial class mainform : Form #region VAR ############ private Boolean bisexit = false; #endregion #region KONSTRUKTOR ################### public mainform() InitializeComponent(); #endregion #region PROPERTIES public Boolean isexit get return bisexit; #endregion private void enkripsitoolstripmenuitem_click(object sender, EventArgs e) encryptform oform2 = new encryptform(); oform2.showdialog(); if (oform2.isaccessible) this.close(); private void dekripsitoolstripmenuitem_click(object sender, EventArgs e) decryptform oform3 = new decryptform(); oform3.showdialog(); if (oform3.isaccessible) this.close();

2 e) private void exittoolstripmenuitem_click(object sender, EventArgs bisexit = true; this.close(); private void bantuantoolstripmenuitem_click(object sender, EventArgs e) private void tentangprogrammertoolstripmenuitem_click(object sender, EventArgs e) programmerform oform4 = new programmerform(); oform4.showdialog(); private void menggunakanaplikasitoolstripmenuitem_click(object sender, EventArgs e) HelpForm oform5 = new HelpForm(); oform5.showdialog(); 2. Form Enkripsi using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; using hybrid.lib; using System.Diagnostics; namespace KriptografiHybrid.Controller public partial class encryptform : Form long jum; int nckey; int n = 0; long[] nil_w = new long[1000]; int[,] tempval = new int[4, 4]; int a; int[,] kunci = new int[4, 4]; private String fileext; DoubleMatrix k = null;

3 #region VAR ############ // private Boolean bisexit = false; // private Boolean pembangkitkuncivalid = false; #endregion #region KONSTRUKTOR ################### public encryptform() InitializeComponent(); #endregion #region SUDAH DIRAPIKAN /// <summary> /// Set default /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void encryptform_load(object sender, EventArgs e) cbmatrixkunci.selectedindex = 0; /// <summary> /// Cari file yang akan di enkripsi /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnpilihsumberfile_click(object sender, EventArgs e) OpenFileDialog FileDialog = new OpenFileDialog(); if (FileDialog.ShowDialog() == DialogResult.OK) txtsumberfile.text = FileDialog.FileName.ToString(); fileext = Path.GetExtension(FileDialog.FileName).Substring(1); txtextensisumberfile.text = fileext; /// <summary> /// Generate matrix kunci /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btngeneratekunci_click(object sender, EventArgs e) cbjumlahw.items.clear(); if (cbmatrixkunci.text == "2x2") a = 2; for (int i = 2; i < ((32 / 2) + 1); i++) if (32 % i == 0) cbjumlahw.items.add(i.tostring()); if (cbmatrixkunci.text == "3x3")

4 a = 3; for (int i = 2; i < ((72 / 2) + 1); i++) if (72 % i == 0) cbjumlahw.items.add(i.tostring()); if (cbmatrixkunci.text == "4x4") a = 4; for (int i = 2; i < ((128 / 2) + 1); i++) if (128 % i == 0) cbjumlahw.items.add(i.tostring()); MessageBox.Show("Secara Otomatis 2x2"); a = 2; for (int i = 2; i < 17; i++) if (32 % i == 0) cbjumlahw.items.add(i.tostring()); Random rand = new Random(); int b = rand.next(1, 256); richtextbox1.text = ""; bool kondisi = false; while (!kondisi) for (int i = 0; i < a; i++) for (int j = 0; j < a; j++) "; kunci[0, 1]); kunci[i, j] = rand.next(0, 255); //richtextbox1.text += kunci[i,j].tostring() + " richtextbox1.text += "\n"; int det = 0; if (a == 2) det = (kunci[0, 0] * kunci[1, 1]) - (kunci[1, 0] * // MessageBox.Show("hasi determinanan" + det); if (a == 3)

5 kunci[1, 0])) * kunci[2, 3])) - kunci[2, 1])) * kunci[0, 3])) det = ((kunci[0, 0] * kunci[1, 1] * kunci[2, 2]) + (kunci[0, 1] * kunci[1, 2] * kunci[2, 0]) + (kunci[0, 2] * kunci[1, 0] * kunci[2, 1])) - ((kunci[2, 0] * kunci[1, 1] * kunci[0, 2]) + (kunci[2, 1] * kunci[1, 2] * kunci[0, 0]) + (kunci[2, 2] * kunci[1, 0] * kunci[0, 1])); if (a == 4) det = ( ((kunci[0, 0] * kunci[1, 1]) - (kunci[0, 1] * ); while (det < 0) det += 256; if (det % 2!= 0) ((kunci[2, 2] * kunci[3, 3]) - (kunci[3, 2] * ((kunci[2, 0] * kunci[3, 1]) - (kunci[3, 0] * ((kunci[0, 2] * kunci[1, 3]) - (kunci[1, 2] * "; while (((256 * b) + 1) % det == 0) b = rand.next(1, 256); richtextbox1.text = ""; for (int i = 0; i < a; i++) for (int j = 0; j < a; j++) richtextbox1.text += kunci[i, j].tostring() + " richtextbox1.text += "\n"; detinv.text = b.tostring(); kondisi = true; // Knoversi dari array kunci ke class DoubleMatrix // (nilai byte = 1 2x2,23x3,34x4) int selectedindexkeymatrix = cbmatrixkunci.selectedindex + 1; if (selectedindexkeymatrix == 1) // 2x2 k = new DoubleMatrix(2, 2); // baris dan kolom pada DoubleMatrix terbalik // baris 0 k[0, 0] = kunci[0, 0]; k[1, 0] = kunci[0, 1]; // baris 1 k[0, 1] = kunci[1, 0]; k[1, 1] = kunci[1, 1];

6 if (selectedindexkeymatrix == 2) // 3x3 k = new DoubleMatrix(3, 3); // baris 0 k[0, 0] = kunci[0, 0]; k[1, 0] = kunci[0, 1]; k[2, 0] = kunci[0, 2]; // baris 1 k[0, 1] = kunci[1, 0]; k[1, 1] = kunci[1, 1]; k[2, 1] = kunci[1, 2]; // baris 2 k[0, 2] = kunci[2, 0]; k[1, 2] = kunci[2, 1]; k[2, 2] = kunci[2, 2]; if (selectedindexkeymatrix == 3) // 4x4 k = new DoubleMatrix(4, 4); // baris 0 k[0, 0] = kunci[0, 0]; k[1, 0] = kunci[0, 1]; k[2, 0] = kunci[0, 2]; k[3, 0] = kunci[0, 3]; // baris 1 k[0, 1] = kunci[1, 0]; k[1, 1] = kunci[1, 1]; k[2, 1] = kunci[1, 2]; k[3, 1] = kunci[1, 3]; // baris 2 k[0, 2] = kunci[2, 0]; k[1, 2] = kunci[2, 1]; k[2, 2] = kunci[2, 2]; k[3, 2] = kunci[2, 3]; // baris 3 k[0, 3] = kunci[3, 0]; k[1, 3] = kunci[3, 1]; k[2, 3] = kunci[3, 2]; k[3, 3] = kunci[3, 3]; Console.WriteLine(k); /// <summary> /// Ambil tujuan file enkripsi /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnpilihtujuanfile_click(object sender, EventArgs e) SaveFileDialog savedialog = new SaveFileDialog(); savedialog.defaultext = fileext; savedialog.addextension = true; savedialog.filter = fileext + " (*." + fileext + ") " + fileext; if (savedialog.showdialog() == DialogResult.OK)

7 txttujuanfile.text = savedialog.filename.tostring(); /// <summary> /// Lakukan enkripsi cipher hill /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnenkripsi_click(object sender, EventArgs e) Stopwatch stopwatch = new Stopwatch(); stopwatch.start(); //DateTime awal, akhir; //awal = DateTime.Now; FileBitReader reader = new FileBitReader(txtSumberFile.Text); FileBitWriter writer = new FileBitWriter(txtTujuanFile.Text); // 1. Simpan pengenal personal writer.writebyte("hanna"); // 2. Simpan ukuran file int filesize = (int)reader.getfilesize(); int bytefilesize1 = filesize >> 24; int bytefilesize2 = (filesize >> 16) % 256; int bytefilesize3 = (filesize >> 8) % 256; int bytefilesize4 = filesize % 256; writer.writebyte(bytefilesize1); writer.writebyte(bytefilesize2); writer.writebyte(bytefilesize3); writer.writebyte(bytefilesize4); // 3. Simpan ukuran key matrix cipher hill (nilai byte = 1 2x2,23x3,34x4) int selectedindexkey = cbmatrixkunci.selectedindex + 1; writer.writebyte(selectedindexkey); HillCipher.encrypt(reader, writer, k); this.timer1.start(); reader.close(); writer.close(); stopwatch.stop(); MessageBox.Show("Enkripsi File Berhasil! (" + txttujuanfile.text + ")"); //lama enkripsi textbox4.text = stopwatch.elapsedmilliseconds + " ms ".ToString(); //ukuran file FileBitReader fileasli = new FileBitReader(txtSumberFile.Text); textbox6.text = fileasli.getfilesize() + " byte ".ToString(); fileasli.close(); //ukuran cipherfile FileBitReader fileterenkrip = new FileBitReader(txtTujuanFile.Text); textbox3.text = fileterenkrip.getfilesize() +" byte ".ToString();

8 fileterenkrip.close(); // /// <summary> /// Pilih jumlah w /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void cbjumlahw_selectedindexchanged(object sender, EventArgs e) //int bitnil = 0; if (cbmatrixkunci.text == "2x2") // bitnil = 32; if (cbmatrixkunci.text == "3x3") // bitnil = 72; if (cbmatrixkunci.text == "4x4") // bitnil = 128; // // bitnil = 32; // /// <summary> /// Bangkitkan w,q,r /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btngenerate_click(object sender, EventArgs e) if (cbjumlahw.text == "") MessageBox.Show("piih terlebih dahulu banyak item w"); Random rand = new Random(); long temp = 0; n = Convert.ToInt32(cbJumlahW.Text); nil_w[0] = 1; jum = nil_w[0]; txtw.text = nil_w[0].tostring(); for (int i = 1; i < n; i++) for (int j = 0; j < i; j++) temp += nil_w[j]; nil_w[i] = temp + 1; jum += nil_w[i]; txtw.text += " " + nil_w[i].tostring(); temp = 0;

9 Random bil = new Random(); int acak = bil.next(1, 256); txtq.text = (acak + jum).tostring(); Random bil = new Random(); int acak = bil.next(1, 255); long Q = Convert.ToInt64(txtQ.Text); while (GCD.GCD1(acak, Q)!= 1) acak = bil.next(1, 255); txtr.text = acak.tostring(); long r = Convert.ToInt32(txtR.Text), q = Convert.ToInt64(txtQ.Text); n = Convert.ToInt32(cbJumlahW.Text); long[] nilpublic = new long[n]; txtkuncipublik.text = ""; for (int i = 0; i < n; i++) nilpublic[i] = ((nil_w[i] * r) % q); txtkuncipublik.text += nilpublic[i].tostring() + " "; txtkunciprivate.text = txtw.text; // dr sini /// <summary> /// Pilih tujuan key disimpan /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnpilihtujuankey_click(object sender, EventArgs e) SaveFileDialog savedialog = new SaveFileDialog(); savedialog.defaultext = "cipherkey"; savedialog.addextension = true; savedialog.filter = "cipherkey (*.cipherkey) cipherkey"; if (savedialog.showdialog() == DialogResult.OK) txttujuankey.text = savedialog.filename.tostring(); /// <summary> /// Lakukan enkripsi pada key (Knapsack) /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btn_enkripsikunci_click(object sender, EventArgs e)

10 Stopwatch stopwatch = new Stopwatch(); stopwatch.start(); String cipher = Knapsack.encrypt(n, txtkuncipublik.text, a, kunci, nckey, txttujuankey.text, txtq.text, txtr.text, cbjumlahw.text, txtkunciprivate.text); textbox1.text = cipher; stopwatch.stop(); MessageBox.Show("Enkripsi Key Berhasil! (" + txttujuankey + ") - "); textbox5.text = stopwatch.elapsedmilliseconds + " ms ".ToString(); /// <summary> /// Keluar dari form enkripsi /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnbatal_click(object sender, EventArgs e) Close(); #region fungsi pembantu public int bin2int(string bin) int num = 0, count = 0; for (int i = (bin.length - 1); i >= 0; i--) if (bin[i] == '1') num += pangkat(2, count); count++; return num; public int pangkat(int a, int b) int hasil = 1; for (int i = 1; i <= b; i++) hasil *= a; return hasil; public Int64 brutemodulo(int64 a, Int64 b, Int64 c) return (((a % c) * (b % c)) % c); #endregion private void timer1_tick(object sender, EventArgs e) this.progressbar1.increment(1);

11 #endregion 3. Form Dekripsi using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; using hybrid.lib; using System.Diagnostics; namespace KriptografiHybrid.Controller public partial class decryptform : Form // long jum; //int n = 0; long[] nil_w = new long[1000]; int[,] tempval = new int[4, 4]; //int a; int[,] kunci = new int[4, 4]; private String fileext; // DoubleMatrix k = null; #region VAR ############ // private Boolean bisexit = false; #endregion #region KONSTRUKTOR ################### public decryptform() InitializeComponent(); #endregion #region Sudah Dirapikan /// <summary> /// Pilih file cipher key dan baca w,q,r,cipherkey ke textbox /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnpilihfilecipherkey_click(object sender, EventArgs e) OpenFileDialog openkey = new OpenFileDialog(); openkey.filter = "cipherkey(*.cipherkey) *.cipherkey"; if (openkey.showdialog() == DialogResult.OK) string read = ""; StreamReader objreader = new StreamReader(openKey.FileName); txtfilecipherkey.text = openkey.filename;

12 read = objreader.readline(); int count = 0; while (read!= null) if (count == 0) txt_q.text = read; if (count == 1) txt_r.text = read; if (count == 3) txt_kunciprivat.text = read; if (count == 4) txtcipherkey.text = read; count++; read = objreader.readline(); objreader.close(); e) /// <summary> /// Lakukan dekripsi knapsack terhadap cipherkey, q, w, r /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btn_dekripsicipherkey_click(object sender, EventArgs try Stopwatch stopwatch = new Stopwatch(); stopwatch.start(); String result = Knapsack.decrypt(txt_KunciPrivat.Text, txtcipherkey.text, txt_q.text, txt_r.text); txt_ciphermatrix.text = result; stopwatch.stop(); MessageBox.Show("Dekripsi Key Berhasil! "); textbox2.text = stopwatch.elapsedmilliseconds + " ms ".ToString(); catch (Exception TerjadiKesalahan) MessageBox.Show("Error\n" + TerjadiKesalahan.ToString()); /// <summary> /// Pilih sumber file yang sudah terenkripsi /// </summary> /// <param name="sender"></param> /// <param name="e"></param>

13 private void btnpilihsumberfile_click(object sender, EventArgs e) OpenFileDialog FileDialog = new OpenFileDialog(); if (FileDialog.ShowDialog() == DialogResult.OK) txtsumberfiledekripsi.text = FileDialog.FileName.ToString(); fileext = Path.GetExtension(FileDialog.FileName).Substring(1); /// <summary> /// Pilih dimana file hasil dekripsi disimpan (Cipherhill) /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnpilihtujuanfile_click(object sender, EventArgs e) SaveFileDialog savedialog = new SaveFileDialog(); savedialog.defaultext = fileext; savedialog.addextension = true; savedialog.filter = fileext + " (*." + fileext + ") "+fileext; if (savedialog.showdialog() == DialogResult.OK) txttujuanfiledekripsi.text = savedialog.filename.tostring(); /// <summary> /// Lakukan proses dekripsi dan simpan file hasil dekripsi /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btn_dekripsi_click(object sender, EventArgs e) Stopwatch stopwatch = new Stopwatch(); stopwatch.start(); String key = txt_ciphermatrix.text; // //buang spasi terakhir key = key.substring(0, key.length - 1); // posisi terakhir adalah spasi == 16) String[] keyarr = key.split(' '); if (keyarr.length == 4 keyarr.length == 9 keyarr.length int jenismatrix = (int)math.sqrt(keyarr.length); DoubleMatrix k = new DoubleMatrix(jenisMatrix, jenismatrix); int keyarrreaded = 0; for (int baris = 0; baris < jenismatrix; baris++) for (int kolom = 0; kolom < jenismatrix; kolom++) k[kolom, baris] = Convert.ToDouble(keyArr[keyArrReaded]); keyarrreaded++;

14 Console.WriteLine("k = " + k); FileBitReader reader = new FileBitReader(txtSumberFileDekripsi.Text); FileBitWriter writer = new FileBitWriter(txtTujuanFileDekripsi.Text); String identifier = String.Empty; for (int i = 0; i < 5; i++) identifier += (char)reader.readbyte(); if (identifier!= "HANNA") MessageBox.Show("File yang anda pilih, tidak bisa di dekripsi!"); //(nilai byte = 1 2x2,23x3,34x4) int bytefilesize1 = reader.readbyte(); int bytefilesize2 = reader.readbyte(); int bytefilesize3 = reader.readbyte(); int bytefilesize4 = reader.readbyte(); bytefilesize1 = bytefilesize1 << 24; bytefilesize2 = bytefilesize2 << 16; bytefilesize3 = bytefilesize3 << 8; long ukuranfile = bytefilesize1 + bytefilesize2 + bytefilesize3 + bytefilesize4; jenismatrix = reader.readbyte(); if (jenismatrix + 1!= k.rowcount) throw new Exception("Jenis matrix tidak cocok!"); HillCipher.decrypt(reader, writer, k, ukuranfile); stopwatch.stop(); MessageBox.Show("Dekripsi File Berhasil! " + txttujuanfiledekripsi.text + ")"); ".ToString(); //lama dekripsi textbox1.text = stopwatch.elapsedmilliseconds + " ms //MessageBox.Show(identifier); writer.close(); reader.close(); MessageBox.Show("Key yang anda masukkan salah! Key harus berupa 2x2; 3x3; 4x4"); #region Fungsi pembantu public string int2bin(int num, int jum) string bin = ""; for (int i = 0; i < jum; i++)

15 if (num % 2 == 1) bin = "1" + bin; bin = "0" + bin; num = num / 2; return bin; #endregion private void btnbatal_click(object sender, EventArgs e) Close(); #endregion private void groupbox1_enter(object sender, EventArgs e) 4. Form Menggunakan Aplikasi using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace hybrid.controller public partial class HelpForm : Form public HelpForm() InitializeComponent(); 5. Form Tentang using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing;

16 using System.Linq; using System.Text; using System.Windows.Forms; namespace hybrid.controller public partial class programmerform : Form public programmerform() InitializeComponent(); private void programmerform_load(object sender, EventArgs e) 6. Class Hill Cipher using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Diagnostics; namespace hybrid.lib class HillCipher public static void encrypt(filebitreader reader, FileBitWriter writer, DoubleMatrix k) // ambil jenis matrix int jenismatrix; // total baris = total kolom jenismatrix = k.rowcount; // ambil ukuran file long filesize = reader.getfilesize(); // variabel count jumlah byte yang sudah dibaca long readedbyte = 0; // lakukan pembacaan sampai seluruh file terbaca while (readedbyte < filesize) // ambil sebanyak jumlah matrix dan ciptakan matrix DoubleMatrix matrixp = new DoubleMatrix(1, jenismatrix); int readedp = 0; while (readedp < jenismatrix) if (readedbyte < filesize) matrixp[0, readedp] = reader.readbyte(); readedbyte++; matrixp[0, readedp] = 0; readedp++;

17 DoubleMatrix matrixc = new DoubleMatrix(1, jenismatrix); matrixc = k * matrixp; matrixc.mod(256); //Console.WriteLine("matrixC setelah mod = " + matrixc); for (int baris = 0; baris < matrixc.rowcount; baris++ ) writer.writebyte((int) matrixc[0, baris]); public static void decrypt(filebitreader reader, FileBitWriter writer, DoubleMatrix k, long orifilesize) DoubleMatrix adjk = k.adjoint(); double detk = k.determinant(); double x = 0; for (int i = 1; i < 10000; i++) double hasilmodulo = (detk * i) % 256; if (hasilmodulo == 1 (hasilmodulo + 256) == 1) x = i; break; //if (((256 * i) + 1) % detk == 0 ) // x = ((256 * i) + 1) / detk; // K"); if (x == 0) throw new Exception("Tidak bisa menemukan nilai invers Det DoubleMatrix invk = (x * adjk); invk.mod(256); for (int baris = 0; baris < invk.rowcount; baris++ ) for (int kol = 0; kol < invk.columncount; kol++) if (invk[kol, baris] < 0) invk[kol, baris] += 256; // pembuktian DoubleMatrix bukti = k * invk; bukti.mod(256); for (int baris = 0; baris < invk.rowcount; baris++) for (int kol = 0; kol < invk.columncount; kol++) if (baris == kol) if (bukti[kol, baris]!= 1)

18 throw new Exception("Inverse matrix benar!"); if (bukti[kol, baris]!= 0) throw new Exception("Inverse matrix salah!"); long readedbyte = 0; long writtenbyte = 0; int jenismatrix = k.rowcount; //Console.WriteLine("jenisMatrix = " + jenismatrix); //Console.WriteLine("fileSize = " + filesize); // lakukan pembacaan sampai seluruh file terbaca while (readedbyte < orifilesize) // ambil sebanyak jumlah matrix dan ciptakan matrix DoubleMatrix matrixc = new DoubleMatrix(1, jenismatrix); int readedp = 0; while (readedp < jenismatrix) matrixc[0, readedp] = reader.readbyte(); readedbyte++; readedp++; //Debug.WriteLine("matrixC = " + matrixc); //Console.WriteLine("matrixP = " + matrixp); DoubleMatrix matrixp = new DoubleMatrix(1, jenismatrix); matrixp = invk * matrixc; //Console.WriteLine("matrixC sebelum mod = " + matrixc); matrixp.mod(256); //Debug.WriteLine("matrixP = " + matrixp); //Console.WriteLine("matrixC setelah mod = " + matrixc); for (int baris = 0; baris < matrixp.rowcount; baris++) if (writtenbyte < orifilesize) writer.writebyte((int)matrixp[0, baris]); writtenbyte++; 7. Class Knapsack using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO;

19 namespace hybrid.lib class Knapsack public static String encrypt(int jlhw, string KunciPub, int jnsmatrix, int[,] kunci, int nckey, String txttujuankey, String txtq, String txtr, String cbjumlahw, String txtkunciprivate) String temp = String.Empty; string ktemppub = ""; int indeks = 0; int[] kpublic = new int[jlhw]; for (int i = 0; i < KunciPub.Length; i++) if (KunciPub.ElementAt(i) >= '0' && KunciPub.ElementAt(i) <= '9') ktemppub += KunciPub.ElementAt(i); if (ktemppub!= "") kpublic[indeks] = Convert.ToInt32(kTempPub); indeks++; ktemppub = ""; //int to Biner temp = ""; for (int i = 0; i < jnsmatrix; i++) for (int j = 0; j < jnsmatrix; j++) temp += Knapsack.int2bin(kunci[i, j], 8); //MessageBox.Show(temp.Text); //Pisah Menjadi Blok Biner indeks = 0; ktemppub = ""; nckey = (temp.length / jlhw); int counter = 0; string[] sesikeycipher = new string[nckey]; //MessageBox.Show(temp.Text+" "+temp.textlength); for (int i = 0; i < temp.length; i++) counter++; if (counter == jlhw) ktemppub += temp.elementat(i);

20 sesikeycipher[indeks] = ktemppub; ktemppub = ""; indeks++; counter = 0; ktemppub += temp.elementat(i); //Perkalian Blok Cipher int[] KeyCipher = new int[nckey]; temp = ""; for (int i = 0; i < nckey; i++) KeyCipher[i] = 0; for (int j = 0; j < jlhw; j++) if (sesikeycipher[i].elementat(j) == '1') KeyCipher[i] += kpublic[j]; temp += KeyCipher[i].ToString() + " "; // Simpan try FileStream teks = new FileStream(txtTujuanKey, FileMode.CreateNew, FileAccess.Write); StreamWriter tulis = new StreamWriter(teks); tulis.writeline(txtq); tulis.writeline(txtr); tulis.writeline(cbjumlahw); tulis.writeline(txtkunciprivate); tulis.writeline(temp); tulis.write(nckey.tostring()); tulis.close(); teks.close(); catch return temp; public static string int2bin(int num, int jum) string bin = ""; for (int i = 0; i < jum; i++) if (num % 2 == 1) bin = "1" + bin; bin = "0" + bin; num = num / 2; return bin;

21 public static int bin2int(string bin) int num = 0, count = 0; for (int i = (bin.length - 1); i >= 0; i--) if (bin[i] == '1') num += Knapsack.pangkat(2, count); count++; return num; public static int pangkat(int a, int b) int hasil = 1; for (int i = 1; i <= b; i++) hasil *= a; return hasil; public static Int64 brutemodulo(int64 a, Int64 b, Int64 c) return (((a % c) * (b % c)) % c); public static String decrypt(string KunciPri, String cipher, String txt_q, String txt_r) String txt_ciphermatrix; int nckey = 0; String temp = String.Empty; int n = 0; string ktemppub; //string KunciPub; int indeks = 0; int[] kpublic = new int[n]; indeks = 0; ktemppub = ""; int counter = 0; string[] sesikeycipher = new string[100]; int[] KeyCipher = new int[100]; temp = ""; int[] kprivate = new int[100]; counter = indeks = 0; ktemppub = ""; for (int i = 0; i < KunciPri.Length; i++) if (KunciPri.ElementAt(i) >= '0' && KunciPri.ElementAt(i) <= '9') ktemppub += KunciPri.ElementAt(i);

22 '9') if (ktemppub!= "") kprivate[indeks] = Convert.ToInt32(kTempPub); indeks++; ktemppub = ""; n++; if (i == KunciPri.Length - 1) if (ktemppub!= "") kprivate[indeks] = Convert.ToInt32(kTempPub); indeks++; n++; ktemppub = ""; indeks = 0; ktemppub = ""; for (int i = 0; i < cipher.length; i++) if (cipher.elementat(i) >= '0' && cipher.elementat(i) <= ktemppub += cipher.elementat(i); if (ktemppub!= "") KeyCipher[indeks] = Convert.ToInt32(kTempPub); indeks++; ktemppub = ""; nckey++; if (i == cipher.length - 1) if (ktemppub!= "") KeyCipher[indeks] = Convert.ToInt32(kTempPub); indeks++; // MessageBox.Show(KeyCipher[i].ToString()); ktemppub = "";

23 ktemppub = ""; for (int i = 0; i < n; i++) ktemppub += "1"; int kombinasi = (Knapsack.bin2int(kTempPub) + 1); string[] binkombi = new string[kombinasi]; for (int i = 0; i < kombinasi; i++) binkombi[i] = int2bin(i, n); //Biner Total Hasil Dekripsi Int64 q = Convert.ToInt32(txt_Q), r = Convert.ToInt32(txt_R), ninv, k = 0; while ((1 + (q * k)) % r!= 0) k++; ninv = (1 + (q * k)) / r; int[] hasildekrip = new int[nckey]; //int temp1 = 0; String hasildekripbin; hasildekripbin = ""; int nkey_temp = Convert.ToInt32(Math.Pow(2, n)); string[] databit = new string[nkey_temp]; int[] datadec = new int[nkey_temp]; int n_bit = Convert.ToInt32(n); for (int i = 0; i < nkey_temp; i++) databit[i] = int2bin(i, n_bit); datadec[i] = 0; for (int j = 0; j < n_bit; j++) datadec[i] += (Convert.ToInt32(dataBit[i][j].ToString()) * kprivate[j]); string hasilbittotal = ""; for (int i = 0; i < nckey; i++) hasildekrip[i] = Convert.ToInt32(bruteModulo(KeyCipher[i], ninv, q)); for (int j = 0; j < nkey_temp; j++) if (hasildekrip[i] == datadec[j]) hasilbittotal += databit[j]; break;

24 //MessageBox.Show("Hasil\n" + hasilbittotal); int[] hasil = new int[hasilbittotal.length / 8]; indeks = counter = 0; txt_ciphermatrix = ""; ktemppub = ""; for (int i = 0; i < hasilbittotal.length; i++) counter++; if (counter == 8) ktemppub += hasilbittotal.elementat(i); hasil[indeks] = Knapsack.bin2int(kTempPub); txt_ciphermatrix += hasil[indeks].tostring() + " "; ktemppub = ""; indeks++; counter = 0; ktemppub += hasilbittotal.elementat(i); return txt_ciphermatrix; 8. Class Baca File using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; namespace hybrid.lib class FileBitReader private String filename; private FileStream filein; private BufferedStream bufffilein; public FileBitReader(String filename) this.filename = filename; filein = new FileStream(this.fileName, FileMode.Open); bufffilein = new BufferedStream(fileIn); public int readbyte() return bufffilein.readbyte(); public long getfilesize()

25 return bufffilein.length; public void close() bufffilein.close(); filein.close(); 9. Class Tulis File using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; namespace hybrid.lib class FileBitWriter private String filename; private FileStream fileout; private BufferedStream bufffileout; public FileBitWriter(String filename) this.filename = filename; fileout = new FileStream(this.fileName, FileMode.Create); bufffileout = new BufferedStream(fileOut); public void writebyte(string str) for (int i = 0; i < str.length; i++) char karakter = str[i]; byte towrite = (byte) karakter; bufffileout.writebyte(towrite); public void writebyte(byte b) bufffileout.writebyte(b); public void writebyte(int i) bufffileout.writebyte((byte) i); public void close() bufffileout.close(); fileout.close();

26 10. Class Double Matrix using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Text; namespace hybrid.lib public class DoubleMatrix public double determinant() if (this.columncount!= this.rowcount) throw new Exception("Determinan berlaku pada matrix NxN"); if (this.columncount == 1) return this[0, 0]; if (this.columncount!= 2) throw new NotImplementedException("Fungsi hanya bisa melakukan determinant n=2"); int n = this.rowcount; if (n == 2) //(kunci[0, 0] * kunci[1, 1]) - (kunci[1, 0] * kunci[0, 1]); return (this[0, 0] * this[1, 1]) - (this[0, 1] * this[1, 0]); public DoubleMatrix adjoint() if (this.columncount!= this.rowcount) throw new Exception("Adjoint berlaku pada matrix NxN"); DoubleMatrix cofactor = new DoubleMatrix(this.ColumnCount, this.rowcount); for (int baris = 0; baris < this.rowcount; baris++ ) for (int kolom = 0; kolom < this.columncount; kolom++ ) // ambil matrix yang sisa DoubleMatrix matrixsisa = new DoubleMatrix(this.ColumnCount - 1, this.rowcount-1); int tracebaris = 0; int tracekolom = 0; for (int loopbaris = 0; loopbaris < this.rowcount; loopbaris++)

27 for (int loopkolom = 0; loopkolom < this.columncount; loopkolom++) if (baris == loopbaris kolom == loopkolom) continue; matrixsisa[tracekolom, tracebaris] = this[loopkolom, loopbaris]; tracekolom++; if (tracekolom >= matrixsisa.columncount) tracekolom = 0; tracebaris++; cofactor[kolom, baris] = Math.Pow(-1, baris + kolom) * matrixsisa.determinant(); return cofactor.transposed; public void mod(int mod) for (int baris = 0; baris < this.rowcount; baris++) for (int kol = 0; kol < this.columncount; kol++) this[kol, baris] = this[kol, baris] % mod; 11. Class GCD using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace hybrid.lib class GCD public static long GCD1(long a, long b) while (b!= 0) long tmp = b; b = a % b; a = tmp; return a;

28 TABEL ASCII No Kode No Kode No Kode No Kode No Kode No Kode 0 44, 88 X 132 Ä Y 133 À Z 134 Å Ì 3 47 / 91 [ 135 Ç \ 136 Ê α ] 137 Ë 181 Á 225 ß ^ 138 È 182  226 Γ _ 139 Ï 183 À 227 π Î Σ a 141 Ì σ b 142 Ä µ c 143 Å τ d 144 É Φ e 145 Æ Θ : 102 f 146 Æ Ω ; 103 g 147 Ô δ < 104 h 148 Ö = 105 i 149 Ò φ > 106 j 150 Û ε 19!! 63? 107 k 151 Ù l 152 Ÿ A 109 m 153 Ö ± B 110 n 154 Ü 198 ã C 111 o à D 112 p ( E 113 q ) F 114 r 158 P G 115 s 159 Ƒ H 116 t 160 Á I 117 u 161 Í J 118 v 162 Ó K 119 w 163 Ú L 120 x 164 Ñ 208 ð 252 n 33! 77 M 121 y 165 Ñ 209 Ð 253 ²

29 No Kode No Kode No Kode No Kode No Kode No Kode 34 " 78 N 122 z 166 ª 210 Ê # 79 O º 211 Ë $ 80 P È 37 % 81 Q ı 38 & 82 R 126 ~ Í 39 :' 83 S 127 Ç 171 ½ 215 Î 40 :( 84 T 128 Ü 172 ¼ 216 Ï 41 ) 85 U 129 É * 86 V 130 Â 174 « W 131 Ä 175» 219 Keterangan : No : Nilai byte Kode : Karakter ASCII

30 CURRICULUM VITAE DETAIL PROFIL Nama Lengkap Alamat Sekarang Alamat Orangtua : Marlina Sihombing : Jln.Berdikari No 88 Pasar 1 Padang Bulan : Pangaribuan, Kabupaten Tapanuli Utara Telp/Handphone : - / PendidikanTerakhir :hannasihombing90@gmail.com/marlina_sihombing@usu.ac.id : Strata 1 (S1) RIWAYAT PENDIDIKAN FORMAL NAMASEKOLAH JURUSAN LOKASI KETERANGAN S1 Universitas Sumatera Utara S1 IlmuKomputer Medan SMA SMA Negeri 1 Pangaribuan SMP SMP Negeri 1 Pangaribuan IPA Pangaribuan Pangaribuan SD LumbanSormin - Pangaribuan KEMAMPUAN DI DALAM BIDANG KOMPUTER Pemrograman : Bahasa Pemograman PHP : Bahasa Pemrograman C#, Basic.net (Beginner) DBMS : Menggunakan MySQL (Intermediate) : Menggunakan MS Access (Intermediate)

31 KEMAMPUAN BAHASA ASING BahasaInggris : Listen (Passive) : Writing (Active) : Reading (Active) ORGANISASI YANG TELAH DIIKUTI SEBAGAI ORGANISASI TAHUN ANGGOTA IMILKOM (Ikatan Mahasiswa Ilmu Komputer) 2009-SKRG ANGGOTA ANGGOTA KMKI (Komunitas Mahasiswa Kristen Ilmu Komputer) Paduan Suara El-Shaddai USU 2009-SKRG SEMINAR YANG TELAH DIIKUTI SEBAGAI PESERTA PESERTA PESERTA PESERTA SEMINAR SEMINAR TEKNOLOGI INFORMASI The Development of Modern Operating System Technology : Android The New Trend in Modern Operating System Di (2011) SEMINAR TEKNOLOGI INFORMASI Internet Masa Depan : Prospek dan Tantangannya Di (2009) WORKSHOP TEKNOLOGI INFORMASI Graphic Design: Unlimited Di (2010) WORKSHOP TEKNOLOGI INFORMASI Teknik Dasar Fotografi Di (2010)