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Implementasi Algoritma Blowfish Pada Aplikasi Enkripsi Dan Dekripsi Citra Berbasis Windows

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CURRICULUM VITAE

Ahda Andi Ahda Andi ---

Data Pribadi

Nama : Ahda Andi Kurnia

Tempat/Tanggal Lahir : Medan/27 Mei 1993 Tinggi/Berat Badan : 168 cm/58 kg

Agama : Islam

Kewarganegaraan : Indonesia

Alamat : Jl.Surya Haji Komp. Surya Indah No.43 Alamat Orang Tua : Jl.Surya Haji Komp. Surya Indah No.43

Telp/ Hp : 081260831254

Email : ahda.andi@gmail.com

--- Riwayat Pendidikan

[2010 – 2016] : S1 Ilmu Komputer Universitas Sumatera Utara, Medan [2006 – 2009] : SMA Islam Al Ulum Terpadu Medan

[2003 – 2006] : SMP Islam Al Ulum Terpadu Medan [1997 – 2003] : SD Pertiwi Medan

--- Keahlian/Kursus

Keahlian Komputer Bahasa :

Pemrograman : C# English

Database : MySQL Indonesia

(2)

--- Pengalaman Organisasi

[2013 - 2014] Anggota PEMA FASILKOM-TI USU 2013-2014 [2012 – 2013] Anggota IMILKOM 2012/2013

[2013 – 2014] Anggota IMILKOM 2013/ 2014

--- Pengalaman Kepanitiaan

[2012] Anggota Panitia PORSENI ILKOM

[2013] Ketua Seminar Public Speaking

--- Seminar

(3)

LISTING PROGRAM

1. FORM MAIN MENU

/*

* Created by SharpDevelop. * User: Excited

* Date: 2/16/2016 * Time: 7:11 PM *

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

using System;

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

using System.Windows.Forms;

namespace enkrip {

///<summary>

/// Description of MainForm.

///</summary>

public partial class MainForm : Form {

public MainForm() {

//

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

//

InitializeComponent();

//

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

//

}

void Button3Click(object sender, EventArgs e) {

(4)

}

void Button1Click(object sender, EventArgs e) {

}

void ExitToolStripMenuItemClick(object sender, EventArgs e) {

Application.Exit(); }

void EnkripToolStripMenuItemClick(object sender, EventArgs e) {

enkrip pindah = new enkrip(); this.Hide();

pindah.ShowDialog(); }

void DekripToolStripMenuItemClick(object sender, EventArgs e) {

dekrip pindah = new dekrip(); this.Hide();

pindah.ShowDialog(); }

void AboutToolStripMenuItemClick(object sender, EventArgs e) {

about pindah = new about(); this.Hide();

pindah.ShowDialog(); }

void HomeToolStripMenuItemClick(object sender, EventArgs e) {

MainForm pindah = new MainForm(); this.Hide();

(5)

} }

2. FORM ENKRIPSI

/*

* Created by SharpDevelop. * User: Excited

* Date: 2/17/2016 * Time: 7:32 PM *

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

using System;

using System.Drawing;

using System.Windows.Forms; using org.jivesoftware.util;

namespace enkrip {

///<summary>

/// Description of enkrip.

///</summary>

public partial class enkrip : Form {

public enkrip() {

//

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

//

InitializeComponent();

//

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

//

}

(6)

Application.Exit(); }

void HomeToolStripMenuItemClick(object sender, EventArgs e) {

MainForm pindah = new MainForm(); this.Hide();

pindah.ShowDialog(); }

void DekripToolStripMenuItemClick(object sender, EventArgs e) {

dekrip pindah = new dekrip(); this.Hide();

pindah.ShowDialog(); }

void AboutToolStripMenuItemClick(object sender, EventArgs e) {

about pindah = new about(); this.Hide();

pindah.ShowDialog(); }

void EnkripToolStripMenuItemClick(object sender, EventArgs e) {

enkrip pindah = new enkrip(); this.Hide();

pindah.ShowDialog(); }

void Button1Click(object sender, EventArgs e) {try

{

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

(7)

{

pictureBox1.Image = bit; }

else

MessageBox.Show("Image Pixel must be 300x300 px", "Warning"); }

}

catch (Exception) {

throw new ApplicationException("Failed loading image"); }

}

void Button2Click(object sender, EventArgs e) {

Blowfish algo = new Blowfish(textBox1.Text); Bitmap image = new Bitmap(pictureBox1.Image); int isi = 0;

int xi = image.Width; int yi = image.Height; string redasli=""; string greenasli=""; string blueasli=""; for (int i = 0; i < yi; i++) {

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

redasli = redasli + (char)image.GetPixel(j,i).R; greenasli = greenasli + (char)image.GetPixel(j,i).G;

blueasli = blueasli + (char)image.GetPixel(j,i).B; }

}

string redenkrip = algo.encryptString(redasli); string greenenkrip = algo.encryptString(greenasli); string blueenkrip = algo.encryptString(blueasli); int ukurenkrip

(8)

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

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

if(isi>redenkrip.Length-1) break;

redf = (double)redenkrip[isi]; greenf = (double)greenenkrip[isi]; bluef = (double)blueenkrip[isi];

imagehasil.SetPixel(j,i,Color.FromArgb(255,(int)redf,(int)greenf,(i nt)bluef));

redf=0;greenf=0;bluef=0;isi++; }

}

pictureBox2.Image = imagehasil;

/*richTextBox1.Text = redasli.Length.ToString(); richTextBox2.Text = greenasli.Length.ToString(); richTextBox3.Text = blueasli.Length.ToString(); richTextBox4.Text = redenkrip.Length.ToString(); richTextBox5.Text = greenenkrip.Length.ToString(); richTextBox6.Text = ukurenkrip.ToString();*/

MessageBox.Show("siap");

}

void Button3Click(object sender, EventArgs e) {

if ( pictureBox2.Image !=null) {

SaveFileDialog simpan = new SaveFileDialog(); simpan.Filter = "Image Files | *.bmp";

simpan.FileName = "*.bmp";

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

(9)

MessageBox.Show("Citra hasil telah

disimpan", "simpan", MessageBoxButtons.OK, MessageBoxIcon.Information); }

} else {

MessageBox.Show("Citra hasill belum ada"); }

} } }

3. FORM DEKRIPSI

/*

* Created by SharpDevelop. * User: Excited

* Date: 2/17/2016 * Time: 7:33 PM *

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

*/

using System;

using System.Drawing;

using System.Windows.Forms; using org.jivesoftware.util;

namespace enkrip {

///<summary>

/// Description of dekrip.

///</summary>

public partial class dekrip : Form {

public dekrip() {

//

(10)

//

InitializeComponent();

//

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

//

}

void ExitToolStripMenuItemClick(object sender, EventArgs e) {

Application.Exit(); }

void HomeToolStripMenuItemClick(object sender, EventArgs e) {

MainForm pindah = new MainForm(); this.Hide();

pindah.ShowDialog(); }

void AboutToolStripMenuItemClick(object sender, EventArgs e) {

about pindah = new about(); this.Hide();

pindah.ShowDialog(); }

void EnkripToolStripMenuItemClick(object sender, EventArgs e) {

enkrip pindah = new enkrip(); this.Hide();

pindah.ShowDialog(); }

void DekripToolStripMenuItemClick(object sender, EventArgs e) {

dekrip pindah = new dekrip(); this.Hide();

(11)

}

void Button1Click(object sender, EventArgs e) {

try {

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

Bitmap bit = new Bitmap(open.FileName); if (bit.Height <= 600 && bit.Width <= 600) {

pictureBox1.Image = bit; }

else

MessageBox.Show("Image Pixel must be 300x300 px", "Warning");

} }

catch (Exception) {

throw new ApplicationException("Failed loading image");

} }

void PictureBox1Click(object sender, EventArgs e) {

}

void Button2Click(object sender, EventArgs e) {

Blowfish algo = new Blowfish(textBox1.Text); Bitmap image = new Bitmap(pictureBox1.Image); int isi = 0;

(12)

string greenasli=""; string blueasli=""; for (int i = 0; i < yi; i++) {

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

if(((char)image.GetPixel(j,i).R)!='\0') {

redasli = redasli + (char)image.GetPixel(j,i).R; greenasli = greenasli + (char)image.GetPixel(j,i).G;

blueasli = blueasli + (char)image.GetPixel(j,i).B; }

} }

string redenkrip = algo.decryptString(redasli); string greenenkrip = algo.decryptString(greenasli); string blueenkrip = algo.decryptString(blueasli); int ukurenkrip

= (int)Math.Ceiling((double)Math.Sqrt(redenkrip.Length)); Bitmap imagehasil = new Bitmap(ukurenkrip,ukurenkrip); double redf,greenf,bluef;

try {

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

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

if(isi>redenkrip.Length-1) break;

redf = (double)redenkrip[isi]; greenf = (double)greenenkrip[isi]; bluef = (double)blueenkrip[isi];

imagehasil.SetPixel(j,i,Color.FromArgb(255,(int)redf,(int)gr eenf,(int)bluef));

redf=0;greenf=0;bluef=0;isi++; }

}

pictureBox2.Image = imagehasil; } catch (Exception) {

(13)

}

//richTextBox4.Text = redenkrip.Length.ToString();

//richTextBox5.Text = greenenkrip.Length.ToString();

//richTextBox6.Text = ukurenkrip.ToString();

MessageBox.Show("siap");

}

void Button3Click(object sender, EventArgs e) {

if ( pictureBox2.Image !=null) {

SaveFileDialog simpan = new SaveFileDialog(); simpan.Filter = "Image Files | *.bmp";

simpan.FileName = "*.bmp";

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

pictureBox2.Image.Save(simpan.FileName, System.Drawing. Imaging.ImageFormat.Bmp);

MessageBox.Show("Citra hasil telah

disimpan", "simpan", MessageBoxButtons.OK, MessageBoxIcon.Informat ion);

} } else {

MessageBox.Show("Citra hasill belum ada"); }

(14)

4. Form About

/*

* Created by SharpDevelop. * User: Excited

* Date: 2/17/2016 * Time: 7:56 PM *

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

*/

using System;

using System.Drawing;

using System.Windows.Forms;

namespace enkrip {

///<summary>

/// Description of about.

///</summary>

public partial class about : Form {

public about() {

//

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

//

InitializeComponent();

//

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

//

}

void ExitToolStripMenuItemClick(object sender, EventArgs e) {

Application.Exit(); }

(15)

void HomeToolStripMenuItemClick(object sender, EventArgs e) {

MainForm pindah = new MainForm(); this.Hide();

pindah.ShowDialog(); }

void AboutToolStripMenuItemClick(object sender, EventArgs e) {

about pindah = new about(); this.Hide();

pindah.ShowDialog(); }

void EnkripToolStripMenuItemClick(object sender, EventArgs e) {

enkrip pindah = new enkrip(); this.Hide();

pindah.ShowDialog(); }

void DekripToolStripMenuItemClick(object sender, EventArgs e) {

dekrip pindah = new dekrip(); this.Hide();

pindah.ShowDialog(); }

void PictureBox2Click(object sender, EventArgs e) {

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