Implementasi Algoritma Elias Delta dan Algoritma ElGamal Dalam Kompresi dan Pengamanan Citra

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LISTING PROGRAM

Key.cs

using System;

using System.Collections.Generic; using System.Diagnostics;

using System.Drawing;

using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.IO;

using System.Text;

using System.Windows.Forms;

namespace TugasAkhir {

/// <summary>

/// Description of key. /// </summary>

public partial class key : Form

{

int p,alpa,d, beta; Random r = new Random();

public key() {

//

// The InitializeComponent() call is required for Windows Forms designer support.//

InitializeComponent();

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

// }

public int modexp(int x, int y, int n) {

int z = 1;

for (int i = 0; i < y ; i++){ z = (x * z) % n;

}

return z; }

public int agrawal(int n) {

int z;

z = r.Next(4,n-2);

if( (Convert.ToInt32(modexp((1+z),n,n)) == ((1 + Convert.ToInt32(modexp(z,n,n))) % n)) && (n%2!=0 && n%5!=0))

return n; else

return agrawal(r.Next(257,5000)); }

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{

p = agrawal(r.Next(257,5000)); tb_prima.Text = p.ToString(); alpa = r.Next(2,p-1);

tb_alpa.Text = alpa.ToString(); d = r.Next(2,p-2);

tb_d.Text = d.ToString(); beta = modexp(alpa,d,p);

tb_beta.Text = beta.ToString(); }

void Button_publicClick(object sender, EventArgs e) {

SaveFileDialog simpan = new SaveFileDialog(); simpan.Filter = "Public Key( *.public)|*.public"; simpan.FileName = "*.public";

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

FileStream fstream=new FileStream(simpan.FileName,FileMode.Create);

StreamWriter sw = new StreamWriter(fstream);

SeekOrigin seekorigin = new SeekOrigin(); sw.BaseStream.Seek(0, seekorigin);

sw.WriteLine(p); sw.WriteLine(alpa); sw.WriteLine(beta);

sw.Flush(); sw.Close();

} }

void Btn_privateClick(object sender, EventArgs e) {

SaveFileDialog simpan = new SaveFileDialog();

simpan.Filter = "Private Key( *.private)|*.private"; simpan.FileName = "*.private";

FileStream fstream=new FileStream(simpan.FileName,FileMode.Create);

SeekOrigin seekorigin = new SeekOrigin(); sw.BaseStream.Seek(0, seekorigin);

sw.WriteLine(p); sw.WriteLine(d);

sw.Flush(); sw.Close(); }

}

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this.Hide();

MainForm f1= new MainForm(); f1.ShowDialog();

}

void HelpToolStripMenuItemClick(object sender, System.EventArgs e)

{

this.Hide();

help f1= new help(); f1.ShowDialog(); }

void SenderToolStripMenuItemClick(object sender, EventArgs e)

{

this.Hide();

sender f1= new sender(); f1.ShowDialog();

}

void RecipientToolStripMenuItemClick(object sender, EventArgs e)

{

this.Hide();

Recipient f1= new Recipient(); f1.ShowDialog();

}

void KeyGeneratorToolStripMenuItemClick(object sender, EventArgs e)

{

this.Hide();

key f1= new key(); f1.ShowDialog(); }

void MSEAndPSNRToolStripMenuItemClick(object sender, EventArgs e)

{

this.Hide();

result f1= new result(); f1.ShowDialog();

} }

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Sender.cs

/*

* Created by SharpDevelop. * User: Cut Amalia S

* Date: 13/03/2017 * Time: 22:02 *

* To change this template use Tools | Options | Coding | Edit Standard Headers.

*/

using System;

/// <summary>

/// Description of sender. /// </summary>

public partial class sender : Form

{

Random rnd = new Random(); Image file;

Bitmap bmp;

double fileLength; Color p;

List<int> ch = new List<int>(); List<int> hs = new List<int>(); List<int> c1 = new List<int>(); List<int> c2 = new List<int>();

public static String[] edc;

int[] fr;

int width,height;

public sender() {

//

// The InitializeComponent() call is required for Windows Forms designer support.

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void HomeToolStripMenuItemClick(object sender, EventArgs e)

{

this.Hide();

}

{

this.Hide();

{

this.Hide();

}

{

this.Hide();

}

{

this.Hide();

private Bitmap ResizeBitmap(Bitmap b, int nWidth,

int nHeight) {

Bitmap result = new Bitmap(nWidth, nHeight); using (Graphics g =

Graphics.FromImage((Image)result)) {

g.InterpolationMode = InterpolationMode.NearestNeighbor;

g.DrawImage(b, 0, 0, nWidth, nHeight); }

return result; }

void Btn_browseClick(object sender, EventArgs e) {

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open.Filter = "bmp files (*.bmp)|*.bmp"; if (open.ShowDialog() == DialogResult.OK) {

file = Image.FromFile(open.FileName); bmp = new Bitmap(open.FileName); pictureBox1.Image = file;

textBox1.Text = open.FileName;

textBox2.Text = file.Height.ToString() + " x " +file.Width.ToString();

width = bmp.Width; height = bmp.Height;

fileLength = new FileInfo(open.FileName).Length * 1.0 /1024;

size1.Text = fileLength.ToString()+" kb";

} }

bool cek(int x) {

for(int i=0; i<ch.Count; i++) {

if(ch[i] == x) return false; }

return true; }

void freq(int x) {

if(ch[i] == x) fr[i]++; }

}

void Insertion() {

for (int i = 1; i < ch.Count; i++) for (int j = 0; j < i; j++)

if (fr[i] > fr[j])

{

int frtemp = fr[i];

fr[i] = fr[j]; fr[j] = frtemp; int sbtemp = ch[i]; ch[i] = ch[j]; ch[j] = sbtemp;

}

int indeks(int x) {

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if(ch[i]==x) return i; }

return 0; }

void init() {

ch.Clear();

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

for(int j=0; j<width; j++) {

p = bmp.GetPixel(i,j); if(cek(p.R))

ch.Add(p.R); if(cek(p.G))

ch.Add(p.G); if(cek(p.B))

ch.Add(p.B);

} }

fr = new int[ch.Count]; for(int i=0; i<ch.Count;i++)

fr[i] = 0;

p = bmp.GetPixel(i,j); freq(p.R);

freq(p.G); freq(p.B); }

}

Insertion(); }

void Btn_encodeClick(object sender, EventArgs e) {

edc_proses();

MessageBox.Show("Citra berhasil dikompresi"); }

void Kodeedc() {

edc = new string[ch.Count]; int c = 0;

for (int n = 1; n < ch.Count + 1; n++) { String b = DecToBin(n);

int M = b.Length;

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StringBuilder u = new StringBuilder();

string stb_edc() {

StringBuilder stb = new StringBuilder();

p = bmp.GetPixel(i,j);

stb.Append(edc[indeks(p.R)]);

return stb.ToString(); }

string Reverse(String sb)

{

char[] charArray = sb.ToCharArray();

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return new String(charArray);

}

int BinToDec(String bin)

{

StringBuilder sb = new StringBuilder(Reverse(bin));

int n = 1; int dec = 0;

for (int i = 0; i < sb.Length; i++)

{

dec = dec +

(int)(Char.GetNumericValue(sb[i])) * n;

n = n * 2;

}

return dec;

}

void Encode(String stb) {

for (int i = 0; i < stb.Length; i+= 8)

{

String x = stb.Substring(i, 8); int y = BinToDec(x);

hs.Add(y);

}

long ukuran() {

long temp = 0;

for(int i=0; i<hs.Count; i++)

temp+=hs[i].ToString().Length; return temp;

}

long ukuran2() {

long temp = 0;

for(int i=0; i<c1.Count; i++)

temp+=c1[i].ToString().Length + c2[i].ToString().Length;

return temp; }

void edc_proses() {

Stopwatch watch = new Stopwatch();// running time watch.Start();

hs.Clear(); //

init(); Kodeedc();

string hasil = stb_edc(); Encode(hasil);

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double siz = ukuran() * 1.0 /1024;

size2.Text = Math.Round(siz,2).ToString() + " kb";

double CR = (fileLength/siz);

cr.Text = Math.Round(CR,2).ToString(); double RC = (siz/(fileLength * 1.0))*100; rc.Text = Math.Round(RC,2).ToString()+" %"; double SS = (1.0 - (1.0/CR)) * 100;

ss.Text = Math.Round(SS,2).ToString()+" %"; time.Text =

Math.Round(Convert.ToDecimal(watch.ElapsedMilliseconds)/1000,4).ToS tring()+" s";

}

void Button1Click(object sender, EventArgs e) {

SaveFileDialog simpan = new SaveFileDialog(); simpan.Filter = "Compressed and Encrypted Files( *.cas)|*.cas";

simpan.FileName = "*.cas";

FileStream fstream=new FileStream(simpan.FileName,FileMode.OpenOrCreate);

SeekOrigin seekorigin = new SeekOrigin();

sw.BaseStream.Seek(0, seekorigin); for(int i=0; i<c1.Count; i++) {

sw.WriteLine(c1[i]); sw.WriteLine(c2[i]); }

sw.Flush(); sw.Close();

string

filenamee=simpan.FileName.Substring(0,simpan.FileName.Length- 4) + "e.dat";

FileStream fstreamm=new FileStream(filenamee,FileMode.OpenOrCreate);

StreamWriter sww = new StreamWriter(fstreamm);

SeekOrigin seekoriginn = new SeekOrigin();

sww.BaseStream.Seek(0, seekoriginn);

sww.WriteLine(width.ToString()+"~"+height.ToString()+"~"+ch.C ount);

StringBuilder stb = new StringBuilder();

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}

sww.WriteLine(stb);

for (int n = 0; n < edc.Length; n++) sww.Write(edc[n]+"~");

sww.Flush(); sww.Close(); }

}

int x, y;

for (x = 0; x < bmp.Width; x++) {

for (y = 0; y < bmp.Height; y++) {

Color pixelColor = bmp.GetPixel(x, y); int z = (pixelColor.R + pixelColor.G + pixelColor.B)/3;

Color newColor = Color.FromArgb(z, z, z); bmp.SetPixel(x, y, newColor);

} }

pictureBox1.Image = bmp; }

int z = 1;

for (int i = 0; i < y ; i++){ z = (x * z) % n;

}

return z; }

public int modexp(int x, int z, int y, int n) {

for (int i = 0; i < y ; i++){ z = (x * z) % n;

}

return z; }

OpenFileDialog open = new OpenFileDialog();

open.Filter = "Public Key( *.public)|*.public"; open.FileName="";

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

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tb_prime.Text = lines[0]; tb_alpa.Text = lines[1]; tb_beta.Text=lines[2]; }

}

Stopwatch watch = new Stopwatch(); // running time

watch.Start();

int prime=int.Parse(tb_prime.Text); int alpa =int.Parse(tb_alpa.Text); int beta =int.Parse(tb_beta.Text); int r;

do{

r = rnd.Next(1,prime-1); }

while(r>= (prime-1));

for (int i=0; i<hs.Count; i++){ c1.Add(modexp(alpa,r,prime));

c2.Add(modexp(beta,hs[i],r,prime)); }

watch.Stop();

double siz2 = ukuran2() * 1.0 /1024;

size3.Text = Math.Round(siz2,2).ToString() + " kb";

time2.Text =

MessageBox.Show("Enkripsi sukses"); }

{

this.Hide();

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Recipient.cs

using System;

using System.Drawing; using System.IO; using System.Text;

/// <summary>

/// Description of Recipient. /// </summary>

public partial class Recipient : Form

{

List<int> c1 = new List<int>(); List<int> c2 = new List<int>();

public Recipient() {

//

}

void HomeToolStripMenuItemClick(object sender, EventArgs e)

{

this.Hide();

}

{

this.Hide();

{

this.Hide();

}

{

this.Hide();

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}

{

this.Hide();

{

this.Hide();

}

int w ,h;

List<int> ch = new List<int>(); List<int> hs = new List<int>(); List<int> pic = new List<int>();

public String[] edc;

OpenFileDialog open = new OpenFileDialog(); open.Filter = "Compressed and Encrypted( *.cas)|*.cas";

open.FileName="";

string nama =

open.FileName.Substring(0, open.FileName.Length); ch.Clear();

hs.Clear(); pic.Clear(); textBox1.Text = Path.GetFullPath(nama);

string[] lines = File.ReadAllLines(nama);

int linecount = File.ReadAllLines(nama).Length;

for (int i=0; i<linecount;i=i+2){ c1.Add(int.Parse(lines[i])); c2.Add(int.Parse(lines[i+1])); }

string namaa = open.FileName.Substring(0, open.FileName.Length- 4) + "e.dat";

FileStream fstreamm = new FileStream(namaa, FileMode.Open,FileAccess.ReadWrite);

StreamReader sreaderr = new StreamReader(fstreamm);

sreaderr.BaseStream.Seek(0, SeekOrigin.Begin);

string keterangan = sreaderr.ReadLine();

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info = keterangan.Split('~'); w = int.Parse(info[0]);

h = int.Parse(info[1]); int n = int.Parse(info[2]); keterangan = sreaderr.ReadLine(); info = new string[n];

info = keterangan.Split('~'); for(int i = 0;i<n;i++)

ch.Add(int.Parse(info[i])); keterangan = sreaderr.ReadLine(); info = new string[n];

edc = new string[n];

info = keterangan.Split('~'); for(int i = 0;i<n;i++)

edc[i] = info[i];

sreaderr.Close(); }

}

string DecToBin(int dec)

{

StringBuilder bin = new StringBuilder(); int r = dec % 2;

bin.Insert(0, r); dec = dec / 2; while (dec != 0)

{

r = dec % 2;

bin.Insert(0, r); dec = dec / 2;

}

return bin.ToString();

}

string Reverse(String sb)

{

char[] charArray = sb.ToCharArray();

Array.Reverse(charArray); return new String(charArray);

}

int BinToDec(String bin)

{

StringBuilder sb = new StringBuilder(Reverse(bin));

int n = 1; int dec = 0;

for (int i = 0; i < sb.Length; i++)

{

dec = dec +

(int)(Char.GetNumericValue(sb[i])) * n;

n = n * 2;

}

return dec;

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string Decode()

void Decompress(String stb)

{

Stopwatch watch = new Stopwatch();// running time

watch.Start();

String dc = Decode(); Decompress(dc);

MessageBox.Show("Citra berhasil didekompresi");

Gambar(); watch.Stop(); time2.Text =

double siz2 = ukuran2() * 1.0 /1024;

size2.Text = Math.Round(siz2,2).ToString() + " kb";

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void Gambar()

{

Bitmap bmp = new Bitmap(w,h); int k = 0;

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

for(int j=0; j<w; j++) {

bmp.SetPixel(i,j,Color.FromArgb(pic[k],pic[k+1],pic[k+2])); k=k+3;

} }

pictureBox1.Image = bmp;

}

SaveFileDialog save = new SaveFileDialog(); save.Filter = "BMP( *.bmp)|*.bmp";

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

string metode =

save.FileName.Substring(save.FileName.Length-3, 3);

pictureBox1.Image.Save(save.FileName,System.Drawing.Imaging.ImageFo rmat.Bmp);

}

double fileLength = new FileInfo(save.FileName).Length * 1.0 /1024;

size3.Text =

Math.Round(fileLength,2).ToString()+" kb"; }

int z = 1;

for (int i = 0; i < y ; i++){ z = (x * z) % n;

}

return z; }

public int modexp(int x, int z, int y, int n) {

for (int i = 0; i < y ; i++){ z = (x * z) % n;

}

return z; }

long ukuran() {

long temp = 0;

for(int i=0; i<hs.Count; i++)

temp+=hs[i].ToString().Length; return temp;

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long ukuran2() {

long temp = 0;

for(int i=0; i<pic.Count; i++)

temp+=pic[i].ToString().Length; return temp;

}

void Btn_dekripsiClick(object sender, EventArgs e) {

Stopwatch watch = new Stopwatch();// running time watch.Start();

int prime=int.Parse(tb_prime.Text); int d =int.Parse(tb_d.Text);

for (int i=0; i<c1.Count;i++){

hs.Add(modexp(c1[i],c2[i],(prime-1-d),prime));

}

watch.Stop(); time.Text =

double siz = ukuran() * 1.0 /1024;

size.Text = Math.Round(siz,2).ToString() + " kb"; MessageBox.Show("Berhasil Dekripsi");

}

OpenFileDialog open = new OpenFileDialog(); open.Filter = "Private Key(

*.private)|*.private";

open.FileName="";

string[] lines = File.ReadAllLines(open.FileName);

tb_prime.Text = lines[0]; tb_d.Text = lines[1]; }

} }

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Result

using System;

/// <summary>

/// Description of result. /// </summary>

public partial class result : Form

{

int width1,height1,width2,height2; Image file, file2;

Bitmap bmp, bmp2;

double fileLength, fileLength2; Color p1, p2;

double mse, psnr; int flag=0;

public result() {

//

// }

void Btn_browseClick(object sender, EventArgs e) {

OpenFileDialog open = new OpenFileDialog(); open.Filter = "bmp files (*.bmp)|*.bmp"; if (open.ShowDialog() == DialogResult.OK) {

file = Image.FromFile(open.FileName); bmp = new Bitmap(open.FileName); pictureBox1.Image = file;

namafile1.Text = open.FileName;

resolusi1.Text = file.Height.ToString() + " x " +file.Width.ToString();

width1 = bmp.Width; height1 = bmp.Height; fileLength = new FileInfo(open.FileName).Length * 1.0 /1024;

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flag = flag+1; if(flag==2)

hitung();

} }

OpenFileDialog open = new OpenFileDialog(); open.Filter = "bmp files (*.bmp)|*.bmp"; if (open.ShowDialog() == DialogResult.OK) {

file2 = Image.FromFile(open.FileName); bmp2 = new Bitmap(open.FileName); pictureBox2.Image = file2;

namafile2.Text = open.FileName;

resolusi2.Text = file2.Height.ToString() + " x " +file2.Width.ToString();

width2 = bmp2.Width; height2 = bmp2.Height; fileLength2 = new FileInfo(open.FileName).Length * 1.0 /1024;

size2.Text = fileLength2.ToString()+" kb";

flag = flag+1; if(flag==2)

hitung();

} }

void hitung() {

for(int i=0; i<height1; i++) {

for(int j=0; j<width1; j++) {

p1 = bmp.GetPixel(i,j); p2 = bmp2.GetPixel(i,j);

mse = mse + Math.Pow(p1.R-p2.R,2) + Math.Pow(p1.G-p2.G,2) + Math.Pow(p1.B-p2.B,2);

} }

mse = 1.0/(width1*height1)*mse;

psnr = 10 * Math.Log10(Math.Pow(255,2)/mse);

nilaimse.Text = mse.ToString(); nilaipsnr.Text = psnr.ToString(); }

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this.Hide();

}

void ToolStripMenuItem3Click(object sender, EventArgs e) {

this.Hide();

}

this.Hide();

}

this.Hide();

}

this.Hide();

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D

AFTAR

R

IWAYAT

H

IDUP

C

URRICULUM

V

ITAE

I. DATA PRIBADI /Personal Identification

Nama Lengkap

: Cut Amalia Saffiera

Tempat/ Tgl. Lahir

: Lhokseumawe/ 19 April 1995

Jenis Kelamin : Perempuan

Agama : Islam

Kebangsaan : Indonesia

Alamat : Jl. Tarakan No.22, Komplek PT Arun, Lhokseumawe

Telepon : 081370488049

Email : amalia.ssafiera@gmail.com

II. KEMAMPUAN / Capabilities

Bahasa : Bahasa Indonesia, Bahasa Inggris Bahasa Pemrograman : C#, C++, PHP

Database : MySQL

Lainnya : HTML, Ms. Office

2013 ]

Ganesha Operation, Medan

V. PELATIHAN DAN SEMINAR / Trainings & Workshop

1) Peserta Workshop “Bank Indonesia Goes To Campus Bersama NET.”, Universitas Sumatera Utara [2016]

2) Peserta Seminar Nasional Literasi Informasi (SENARAI) Fasilkom-TI Universitas Sumatera Utara [2014]

3) Peserta Seminar “What Will You Be?” IMILKOM Universitas Sumatera Utara [2013]

XIII. LAINNYA / Others

1) Penerima Beasiswa PPA (Peningkatan Prestasi Akademik) dan Program Kreativitas Mahasiswa [2014 – 2016]