Implementasi Kombinasi Algoritma Beaufort Dan Algoritma Spritz Dalam Skema Super Enkripsi Untuk Pengamanan Teks

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LISTING PROGRAM

a.

Source Code MainForm.cs

using System;

using System.Collections.Generic; using System.Drawing;

using System.Windows.Forms; using System.Linq;

using System.Text;

using System.Diagnostics; using System.IO;

using System.Dynamic; using iTextSharp.text.pdf; using iTextSharp.text.pdf.parser; using System.Runtime.InteropServices; namespace skripsi_tia

{

public partial class MainForm : Form {

publicMainForm() {

InitializeComponent();

//TODO: Add constructor code after the InitializeComponent() call. }

void BtnMasukClick(object sender, EventArgs e) {

Form1 a = newForm1(); a.Show();

this.Hide(); }

} }

b.

Source Code Form1.cs

string metode; PdfReader reader;

string runtime_beau,runtime_spritz,runtime_spritz2,runtime_beau2; int beau,spritz;

// Untuk Mencari File doc dan pdf

void BtnCariClick(object sender, EventArgs e) {

OpenFileDialog dialog = newOpenFileDialog();

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dialog.RestoreDirectory = true;

if(dialog.ShowDialog() == DialogResult.OK){

metode = dialog.FileName.Substring(dialog.FileName.Length-3,3); if(metode == "doc"){

string dirName = System.IO.Path.GetDirectoryName(dialog.FileName); string drive = dirName.Split(System.IO.Path.VolumeSeparatorChar)[1]; txtCari.Text = dirName + "\\" + dialog.SafeFileName.ToString(); }

elseif(metode=="pdf"){

reader = newPdfReader(dialog.FileName); txtCari.Text = dialog.FileName; }

} }

// Untuk membuka file doc dan pdf

void BtnBukaFileClick(object sender, EventArgs e) {

var stopwatch2 = newStopwatch(); stopwatch2.Start();

if(metode=="doc"){

Microsoft.Office.Interop.Word.Application wordApp = new Microsoft.Office.Interop.Word.ApplicationClass();

object filenameO = txtCari.Text.ToString(); object objFalse = false;

object objTrue = true;

object missing = System.Reflection.Missing.Value; object emptyData = string.Empty;

try{

Microsoft.Office.Interop.Word.Document aDoc

= wordApp.Documents.Open(ref filenameO, ref objFalse, ref objTrue, ref missing, ref m issing, ref missing, ref missing, ref missing, ref missing, ref missing, ref objTrue, ref missi ng, ref missing, ref missing, ref missing);

aDoc.ActiveWindow.Selection.WholeStory(); aDoc.ActiveWindow.Selection.Copy();

IDataObject data = System.Windows.Forms.Clipboard.GetDataObject(); String fileText =

data.GetData(System.Windows.Forms.DataFormats.Text).ToString(); System.Windows.Forms.Clipboard.SetDataObject(string.Empty);

txtPlaintext.Text = fileText;

stopwatch2.Stop();

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}

catch(Exception err){

MessageBox.Show(err.Message); }

finally{

MessageBox.Show("File berhasil dibaca"); }

} else{

try{

int intPageNum = reader.NumberOfPages; string[] words;

string line,text; string temp="";

for (int i = 1; i <= intPageNum; i++) {

text =

PdfTextExtractor.GetTextFromPage(reader, i, newLocationTextExtractionStrategy() );

words = text.Split('\n');

for (int j = 0, len = words.Length; j < len; j++) {

line = Encoding.UTF8.GetString(Encoding.UTF8.GetBytes(words[j])); temp += line + Environment.NewLine;

} }

txtPlaintext.Text = temp;

stopwatch3.Stop();

runtime_baca.Text= (int.Parse(stopwatch3.Elapsed.ToString("fffffff"))/10000f).ToString(); }

finally{

}

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// Untuk mengacak kunci beaufort void Btn_EnkBeauClick(object sender, EventArgs e) {

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else{

cipher += txtPlaintext.Text[i]; }

}

txtHasilEnk_1.Text += cipher;

}

stopwatch.Stop();

runtime_beau = (int.Parse(stopwatch.Elapsed.ToString("fffffff"))/10000f).ToString(); }

// untuk mengacak kunci spritz

void BtnAcak2Click(object sender, EventArgs e) {

Random rnd = newRandom(); string kunci2="";

int r;

for(int i=0; i<txtHasilEnk_1.Text.Length; i++) {

r = rnd.Next(0,kar.Length); kunci2 += kar[r];

}

txtKunciSpritz.Text = kunci2; }

//untuk mencari bilangan GCD publicintGCD(int a, int b) {

while (a != 0 && b != 0) {

if (a > b) a %= b; else b %= a; }

if (a == 0) return b; else return a; }

int = w1;

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// untuk enkripsi algoritma spritz (KSA) public void SetKey(string key)

{

S = newint[256];

int keyLength = key.Length;

if (keyLength < 1)

MessageBox.Show("Kunci tidak boleh kosong");

for (int i = 0; i <= 255; i++) S[i] = (byte)i;

int j = 0;

for (int i = 0; i <= 255; i++) {

j = (j + S[i] + key[i % keyLength]) % 256; int iTmp = S[i];

S[i] = S[j]; S[j] = iTmp;

}

// untuk enkripsi algoritma spritz (PRGA) void BtnEnkSpritzClick(object sender, EventArgs e)

{

string plain = txtHasilEnk_1.Text; SetKey(txtKunciSpritz.Text); int i = 0, k = 0;

int j = 0,w=0, z = 0; Ascii tbl = newAscii();

Random r = newRandom(); while(GCD(w,256)!=1) {

w = r.Next()%256; }

w1 = w;

// txtGCD.Text= w1.ToString();

string cipher = "";

for (int a = 0; a < plain.Length; a++) {

i = (i + w) % 256;

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int iTmp = S[i]; S[i] = S[j]; S[j] = iTmp;

z = S[(j + S[(i + S[(z + k)%256])%256])%256];

cipher += tbl.getChar((tbl.getDesimal(plain[a]) ^ z)%256); }

txtHasilEnk_2.Text = cipher; stopwatch1.Stop();

runtime_spritz= (int.Parse(stopwatch1.Elapsed.ToString("fffffff"))/10000f).ToString() ; textBox7.Text= ((double.Parse(runtime_beau) + double.Parse(runtime_spritz))/2).ToString(); }

// untuk menyimpan hasil enkripsi void BtnSimpanClick(object sender, EventArgs e) {

SaveFileDialog simpan = newSaveFileDialog(); simpan.Filter = "Super Enkripsi(*.tia)|*.tia"; simpan.FileName = "*.tia";

if (simpan.ShowDialog() == DialogResult.OK) {

FileStream fstream=newFileStream(simpan.FileName,FileMode.OpenOrCreate); StreamWriter sw = newStreamWriter(fstream);

SeekOrigin seekorigin = newSeekOrigin(); sw.BaseStream.Seek(0, seekorigin); sw.WriteLine(txtHasilEnk_2.Text); sw.Flush();

sw.Close();

string filenamee=simpan.FileName.Substring 4) + ".key";

FileStream fstreamm=newFileStream(filenamee,FileMode.OpenOrCreate); StreamWriter sww = newStreamWriter(fstreamm);

SeekOrigin seekoriginn = newSeekOrigin(); sww.BaseStream.Seek(0, seekoriginn); sww.WriteLine(txtKunciBeau.Text); sww.WriteLine(txtKunciSpritz.Text); sww.WriteLine(w1.ToString()); sww.Flush();

sww.Close(); }

}

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void BtnCari2Click(object sender, EventArgs e) {

OpenFileDialog open = newOpenFileDialog(); open.Filter = "Super Enkripsi FIle(*.tia)|*.tia"; if (open.ShowDialog() == DialogResult.OK) {

txtCari2.Text = open.FileName;

string namaa = open.FileName.Substring(0, open.FileName.Length- 4) + ".key"; FileStream fstreamm

= newFileStream(namaa, FileMode.Open,FileAccess.ReadWrite); StreamReader sreaderr = newStreamReader(fstreamm); sreaderr.BaseStream.Seek(0, SeekOrigin.Begin);

kuncibeau = sreaderr.ReadLine(); kuncispritz = sreaderr.ReadLine(); w2 = int.Parse(sreaderr.ReadLine()); string sementara;

sreaderr.Close();

string nama = open.FileName.Substring(0, open.FileName.Length); FileStream fstream

= newFileStream(nama, FileMode.Open,FileAccess.ReadWrite); StreamReader sreader = newStreamReader(fstream); sreader.BaseStream.Seek(0, SeekOrigin.Begin); hasil_enk = sreader.ReadLine();

sreader.Close(); }

}

//untuk membaca file hasil enkripsi void BtnBukaFile2Click(object sender, EventArgs e) {

try{

txtPlaintext2.Text = hasil_enk; txtKunciBeau2.Text = kuncibeau; txtKunciSpritz2.Text = kuncispritz; }

finally{

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// untuk dekripsi algoritma spritz void BtnDekSpritzClick(object sender, EventArgs e) {

SetKey(txtKunciSpritz2.Text); int i = 0, k = 0;

int j = 0, z = 0;

Ascii tbl = newAscii();

string plain ="";

for (int a = 0; a < txtPlaintext2.Text.Length; a++) {

i = (i + w2) % 256;

j = (k + S[(j + S[i])%256]) % 256; k = (k + i + S[j]) % 256;

int iTmp = S[i]; S[i] = S[j]; S[j] = iTmp;

z = S[(j + S[(i + S[(z + k)%256])%256])%256];

plain += tbl.getChar((tbl.getDesimal(txtPlaintext2.Text[a]) ^ z)%256); }

txtHasilDek1.Text = plain; }

//untuk dekripsi algoritma beaufort void BtnDekBeauClick(object sender, EventArgs e) {

string plain = ""; int k,c;

for(int i=0; i<txtHasilDek1.Text.Length; i++) {

if(kar.Contains(txtHasilDek1.Text[i])){

c = Array.IndexOf(kar, txtHasilDek1.Text[i]); k = Array.IndexOf(kar, txtKunciBeau2.Text[i]); if(k-c<0)

plain += kar[(k-c+kar.Length)%kar.Length]; else

plain += kar[(k-c)%kar.Length]; }

else{

plain += txtHasilDek1.Text[i]; }

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// untuk mereset halaman enkripsi

void BtnResetClick(object sender, EventArgs e) {

txtCari.Text=""; txtPlaintext.Text=""; txtHitung.Text=""; txtKunciBeau.Text=""; txtKunciSpritz.Text=""; txtHasilEnk_1.Text=""; txtHasilEnk_2.Text=""; textBox7.Text=""; runtime_baca.Text= ""; }

// untuk mereset halaman dekripsi

void Btn_Reset2Click(object sender, EventArgs e) {

txtCari2.Text= ""; txtHasilDek1.Text = ""; txtHasilDek2.Text = ""; txtKunciBeau2.Text = ""; txtKunciSpritz2.Text = ""; txtHitung2.Text = ""; txtPlaintext2.Text = ""; run_time_dek.Text = "";

}

c.

Source Code Ascii.cs

using System;

using System.Drawing;

using System.Windows.Forms;

namespace skripsi_tia {

public partial class Ascii:Form {

char[] tabel

= {'Ā','ā','Ă','ă','Ą','ą','Ć','ć','Ĉ','ĉ','Ċ','ċ','Č','į','İ','ı','Ĳ','ĳ','Ĵ','Ķ','ķ','ĸ','Ĺ','ĺ','Ļ','ļ','Ľ','ľ','Ŀ','ŀ','Ł','ł',

'','!','"','#','$','%','&','\'','(',')','*','+',',','-','.','/','0','1','2','3','4','5','6','7','8','9',':',';', '<','=','>','?',@','A','B','C','D','E','F','G','H','I','J','K','L',' M','N','O','P','Q','R','S','T','U','V','W','X','Y', 'Z','[','\\',']','^','_','`','a','b','c','d','e','f','g','h','i','j','k','l' ,'m','n','o','p','q','r','s','t','u','v','w', 'x','y','z','{','|','}','~','Ɗ','Ď','ď','Đ','đ','Ē','ē','Ĕ','ĕ','Ė','ė','Ę','ę','

Ě','ě','Ĝ','ĝ','Ğ','ğ','Ġ','ġ','Ģ','ģ', 'Ĥ','ĥ','Ħ','ħ','Ĩ','ĩ','Ī','ī','Ĭ','ĭ','Į','¡','¢','£','¤','¥','¦','§','¨','©','ª','«','

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publicintgetDesimal(char x) {

for (int i= 0; i < 256; i++) {

if (x.Equals(tabel[i])) return i;

}

return 0; }

publicchargetChar(int x) {

return tabel[x]; }

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CURRICULUM VITAE

DATA DIRI

Nama

: Tia Rahmadianti

Tempat/Tanggal Lahir : Pangkalan Brandan/29 Januari 1996

Alamat : Jln Tj Pura no 37 Pelawi Pangkalan

Brandan, 20857

Agama : Islam

Jenis Kelamin

: Perempuan

Nomor Hp

: 081295568832

Email

: tiarahmadianti@gmail.com

RIWAYAT PENDIDIKAN

UNIVERSITAS

Universitas Sumatera Utara, Medan

2013

SMA

SMA DHARMA PATRA PANGKALAN BRANDAN

2010-2013

SMP

SMP DHARMA PATRA PANGKALAN BRANDAN

2007-2010

SD

SD DHARMA PATRA PANGKALAN BRANDAN

2001-2007

Bahasa Pemrograman

: Java, C++, PHP, HTML

Database

: MySQL

Software

: Office Application

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SEMINAR/WORKSHOP/PELATIHAN

No Nama Kegiatan Jenis Kegiatan Tahun

1 Pelatihan Dasar Organisasi _Pelatihan ₂₀₁₄

2 Training Islam Ceria Kreatif

(TRICK) Pelatihan 2014

3 Seminar Nasional Literasi

Informasi (SENARAI) Seminar 2014

4 What Will You be? _Seminar ₂₀₁₃

5 Seminar Gelora Literasi

Teknologi Informasi & Komunikasi (Si GELITIK)

Seminar 2013

6 Effective Market

Segmentation and Targeting Seminar 2014

7 Global Inspiring Seminar of

Indonesia Next Program 2016 Seminar 2016

8 GIT Repository _Workshop ₂₀₁₇

9 Industri Kreatif _Seminar ₂₀₁₇

PENGALAMAN ORGANISASI

No Nama Organisasi Posisi Tahun

1 OSIS Bendahara 2 2011-2012

2 UKMI Al-Khuwarizmi Anggota Akademik dan

Kompetensi

2014-2015

3 UKMI Al-Khuwarizmi Sekretaris Bidang Akademik

dan Kompetensi

2015-2016