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Pengamanan Teks Dengan Hybrid Cryptosystem Algoritma Multi-Power Rsa Dan Algoritma Blowfish

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(1)

LAMPIRAN 1

LISTING PROGRAM

using System;

using System.Drawing;

using System.Windows.Forms; using System.Numerics; using System.IO;

using System.Diagnostics; using System.Text; using System.Linq;

using org.jivesoftware.util;

namespace Blowfish_multipowerRSA {

///<summary>

/// Description of Form_Utama. ///</summary>

publicpartialclassformutama : Form {

publicformutama() {

//

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

InitializeComponent();

//

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

}

boolpangkat(int n){ if (n<=1)

returntrue;

for (int x=2; x<=Math.Sqrt(n); x++){ BigInteger p =x;

while (p<=n){ p*=x; if (p==n) returntrue; }

}

(2)

voidButton1Click(object sender, EventArgs e) {

BigInteger p,q,gcd; int z=0, nilaiP;

nilaiP = Convert.ToInt32(inputp.Text); if (nilaiP==2 || nilaiP==3)

status.Text = "Bilangan Prima"; elseif (pangkat(nilaiP))

status.Text = "Bilangan Komposit"; else {

for (int i = 2; i<=nilaiP; i++){

gcd = BigInteger.GreatestCommonDivisor(nilaiP,i); if (gcd==1){

z=i; break; }

}

p = BigInteger.ModPow((1+z),nilaiP,nilaiP); q = 1 + BigInteger.ModPow(z, nilaiP, nilaiP); if (p==q) {

status.Text = "Bilangan Prima"; }

else

status.Text = "Bilangan Komposit"; }

}

voidButton4Click(object sender, EventArgs e) {

inputp.Text = ""; status.Text = ""; }

voidCek2Click(object sender, EventArgs e) {

BigInteger v,w,gcd; int z=0, nilaiQ;

nilaiQ = Convert.ToInt32(inputq.Text); if (nilaiQ==2 || nilaiQ==3)

status1.Text = "Bilangan Prima"; elseif (pangkat(nilaiQ))

status1.Text = "Bilangan Komposit"; else {

for (int i = 2; i<=nilaiQ; i++){

(3)

z=i; break; }

}

v = BigInteger.ModPow((1+z),nilaiQ,nilaiQ); w = 1 + BigInteger.ModPow(z, nilaiQ, nilaiQ); if (v==w) {

status1.Text = "Bilangan Prima"; }

else

status1.Text = "Bilangan Komposit"; }

}

voidReset2Click(object sender, EventArgs e) {

inputq.Text = ""; status1.Text = ""; }

//menghitung nilai N

voidButton5Click(object sender, EventArgs e) {

int nilaip,nilaiq; BigInteger N;

nilaip = Convert.ToInt32(inputp.Text); nilaiq = Convert.ToInt32(inputq.Text); N = BigInteger.Pow(nilaip,2) * nilaiq; nilaiN.Text = Convert.ToString(N); }

//menghitung nilai d

voidHitungdClick(object sender, EventArgs e) {

BigInteger modulo, ambilnilaie, hasild, nilaip, nilaiq,nilaid=1; nilaip = Convert.ToInt32(inputp.Text);

nilaiq = Convert.ToInt32(inputq.Text); ambilnilaie = Convert.ToInt32(nilaie.Text); modulo = (nilaip-1)*(nilaiq-1);

for(int i=1; i<=modulo; i++){ hasild = (i*ambilnilaie)%modulo; if (hasild==1){

nilaid = i;

hasild1.Text = Convert.ToString(nilaid); break;

(4)

}

//menghitung nilai r1

voidButton7Click(object sender, EventArgs e) {

int hitungr1, nilaip, nilaid;

nilaip = Convert.ToInt32(inputp.Text); nilaid = Convert.ToInt32(hasild1.Text); hitungr1 = nilaid%(nilaip-1);

nilair1.Text = Convert.ToString(hitungr1);

}

//menghitung nilai r2

voidButton8Click(object sender, EventArgs e) {

int hitungr2, nilaiq, nilaid;

nilaiq = Convert.ToInt32(inputq.Text); nilaid = Convert.ToInt32(hasild1.Text); hitungr2 = nilaid%(nilaiq-1);

nilair2.Text = Convert.ToString(hitungr2); }

//proses pada pembangkit kunci

voidProsesClick(object sender, EventArgs e) {

BigInteger nilN, nile, nilp, nilq, nilr1, nilr2; nilN = Convert.ToUInt64(nilaiN.Text); nile = Convert.ToUInt64(nilaie.Text); nilp = Convert.ToUInt64(inputp.Text); nilq = Convert.ToUInt64(inputq.Text); nilr1 = Convert.ToUInt64(nilair1.Text); nilr2 = Convert.ToUInt64(nilair2.Text);

publickey.Text = Convert.ToString(nilN) + "-" + Convert.ToString(nile);

privatekey.Text = Convert.ToString(nilp) + "-" + Convert.ToString(nilq) + "-" + Convert.ToString(nilr1) + "-" + Convert.ToString(nilr2) + "-" +

Convert.ToString(nilN) + "-" + Convert.ToString(nile); }

//mengecek nilai e

voidButton6Click(object sender, EventArgs e) {

BigInteger nilaip, nilaiq; BigInteger gcd;

(5)

for (int i=3; i<=hitungnilaie; i++){

gcd = BigInteger.GreatestCommonDivisor(hitungnilaie,i); if (gcd==1){

nilaie.Text = Convert.ToString(i); break;

} } }

//simpan public key dan private key

voidSimpanClick(object sender, EventArgs e) {

SaveFileDialog simpan = newSaveFileDialog(); simpan.Filter = "Bangkit Kunci(*.kunci) |*.kunci"; simpan.FileName = ".kunci";

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

FileStream fstreamm

= newFileStream(simpan.FileName,FileMode.OpenOrCreate); StreamWriter sww = newStreamWriter(fstreamm); SeekOrigin seekoriginn = newSeekOrigin();

sww.BaseStream.Seek(0, seekoriginn); sww.WriteLine(publickey.Text); sww.WriteLine(privatekey.Text); sww.Flush();

sww.Close(); }

}

//hapus pada pembangkit kunci

voidHapusClick(object sender, EventArgs e) {

inputp.Text =""; inputq.Text =""; status.Text =""; status1.Text =""; nilaiN.Text = ""; nilaie.Text = ""; nilair1.Text = ""; nilair2.Text = ""; hasild1.Text = ""; publickey.Text = ""; privatekey.Text = ""; }

(6)

stringkuncipublik, kunciprivate;

voidButton3Click(object sender, EventArgs e) {

OpenFileDialog buka = newOpenFileDialog(); buka.Filter = "Kunci(*.kunci)|*.kunci"; if (buka.ShowDialog() == DialogResult.OK) { tb_lokasi.Text = buka.FileName;

string nama = buka.FileName.Substring(0, buka.FileName.Length); FileStream fstreamm = newFileStream(nama, FileMode.Open, FileAccess.ReadWrite);

StreamReader sreader = newStreamReader(fstreamm); sreader.BaseStream.Seek(0, SeekOrigin.Begin);

kuncipublik = sreader.ReadLine(); kunciprivate = sreader.ReadLine(); sreader.Close();

tb_publickey.Text = kuncipublik; }

}

//---//

//---PROSES ENKRIPSI KUNCI SIMETRIS---// voidButton9Click(object sender, EventArgs e)

{

Stopwatch hitungwaktu = newStopwatch(); hitungwaktu.Start();

string ambilstring, ambilnilai;

ambilstring = Convert.ToString(tb_publickey.Text); ambilnilai = Convert.ToString(tb_kuncisimetris.Text); string [] parts = ambilstring.Split('-');

BigInteger [] numArray = newBigInteger[parts.Length]; BigInteger [] charvalue = newBigInteger[ambilnilai.Length]; BigInteger [] cipherkey = newBigInteger[ambilnilai.Length];

for (int i=0; i<=parts.Length-1; i++)

BigInteger.TryParse(parts[i], out numArray[i]);

for (int i=0; i<=ambilnilai.Length-1; i++){ charvalue[i] = Convert.ToInt32(ambilnilai[i]);

cipherkey[i] = BigInteger.ModPow(charvalue[i], numArray[1], numArray[0]); }

foreach (BigInteger myInt in cipherkey)

tb_cipherkey.Text = tb_cipherkey.Text+myInt.ToString()+"-";

hitungwaktu.Stop();

string timerenkripsikunci = (int.Parse(hitungwaktu.Elapsed.ToString("fffffff")) / 10000f).ToString();

(7)

}

voidButton2Click(object sender, EventArgs e) {

string kunci, simetris;

kunci = Convert.ToString(tb_kuncienkripsi.Text); simetris = kunci;

tb_kuncisimetris.Text = simetris; Stopwatch waktu = newStopwatch(); waktu.Start();

Blowfish enkripsi = newBlowfish(tb_kuncisimetris.Text); string enkripsiteks = enkripsi.encryptString(rtb_plaintext.Text); rtb_ciphertext.Text = Convert.ToString(enkripsiteks);

waktu.Stop();

string timerenkripsifile = (int.Parse(waktu.Elapsed.ToString("fffffff")) / 10000f).ToString();

tb_runningteks.Text = double.Parse(timerenkripsifile).ToString() + " ms"; }

//---Menyimpan Hasil Cipherkey---// voidButton11Click(object sender, EventArgs e)

{

SaveFileDialog simpan = newSaveFileDialog();

simpan.Filter = "Cipherkey(*.cipherkey) |*.cipherkey"; simpan.FileName = ".cipherkey";

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

string namafile = simpan.FileName.Substring(0, simpan.FileName.Length - 10) + "a.dat";

FileStream fstreamm

= newFileStream(simpan.FileName,FileMode.OpenOrCreate); StreamWriter sww = newStreamWriter(fstreamm); SeekOrigin seekoriginn = newSeekOrigin();

sww.BaseStream.Seek(0, seekoriginn); sww.WriteLine(tb_cipherkey.Text); //sww.WriteLine(privatekey.Text); sww.Flush();

sww.Close(); }

}

//---//

(8)

//---Membuka Cipherkey---// stringcipherkeydek;

voidButton13Click(object sender, EventArgs e) {

OpenFileDialog buka = newOpenFileDialog(); buka.Filter = "Cipherkey(*.cipherkey)|*.cipherkey"; if (buka.ShowDialog() == DialogResult.OK) {

string nama = buka.FileName.Substring(0, buka.FileName.Length); FileStream fstreamm = newFileStream(nama, FileMode.Open, FileAccess.ReadWrite);

StreamReader sreader = newStreamReader(fstreamm); sreader.BaseStream.Seek(0, SeekOrigin.Begin);

cipherkeydek= sreader.ReadLine(); //kunciprivate = sreader.ReadLine(); sreader.Close();

tb_cipherkeydek.Text = cipherkeydek; }

}

//---//

//---Membuka Private Key---// voidCarikunciClick(object sender, EventArgs e)

{

OpenFileDialog buka = newOpenFileDialog(); buka.Filter = "Kunci(*.kunci)|*.kunci"; if (buka.ShowDialog() == DialogResult.OK) {

string nama = buka.FileName.Substring(0, buka.FileName.Length); FileStream fstreamm = newFileStream(nama, FileMode.Open, FileAccess.ReadWrite);

StreamReader sreader = newStreamReader(fstreamm); sreader.BaseStream.Seek(0, SeekOrigin.Begin);

kuncipublik = sreader.ReadLine(); kunciprivate = sreader.ReadLine(); sreader.Close();

tb_privatekey.Text = kunciprivate; }

}

//---//

voidButton14Click(object sender, EventArgs e) {

Stopwatch hitung = newStopwatch(); hitung.Start();

Blowfish dekripsi = newBlowfish(tb_kunci.Text);

(9)

hitung.Stop();

string timerdekripsifile = (int.Parse(hitung.Elapsed.ToString("fffffff")) / 10000f).ToString();

tb_rtteks.Text = double.Parse(timerdekripsifile).ToString() + " ms"; }

//---Proses Dekripsi Kunci---// voidButton12Click(object sender, EventArgs e)

{

Stopwatch hitungwaktu = newStopwatch(); hitungwaktu.Start();

BigInteger p, hasilinvers,einvers=1,hasilinversp2, p2invers=1; string ambilstring, ambilnilai;

ambilstring = Convert.ToString(tb_privatekey.Text); ambilnilai = Convert.ToString(tb_cipherkeydek.Text); string [] parts = ambilstring.Split('-');

BigInteger [] numArray = newBigInteger[parts.Length]; string [] charvalue = ambilnilai.Split('-');

BigInteger [] panjangArray = newBigInteger[charvalue.Length]; BigInteger [] Cp = newBigInteger[charvalue.Length];

BigInteger [] Cq = newBigInteger[charvalue.Length]; BigInteger [] Mp = newBigInteger[charvalue.Length]; BigInteger [] K0 = newBigInteger[charvalue.Length]; BigInteger [] A = newBigInteger[charvalue.Length]; BigInteger [] Mq = newBigInteger[charvalue.Length]; BigInteger [] V = newBigInteger[charvalue.Length]; int [] konversi = newint[charvalue.Length];

BigInteger [] kuncisimetris = newBigInteger[charvalue.Length]; char [] karakter = newchar[charvalue.Length];

for (int k=0; k<=parts.Length-1; k++)

BigInteger.TryParse(parts[k], out numArray[k]);

for (int mulai=0; mulai<=charvalue.Length-1; mulai++)

BigInteger.TryParse(charvalue[mulai], out panjangArray[mulai]);

p = numArray[0]*numArray[0]; for (int l=1; l<=numArray[0]; l++){

hasilinvers = l*numArray[5]%numArray[0]; if (hasilinvers==1){

einvers = l; break; }

}

for (int j=1; j<=p; j++){

(10)

p2invers = j; break; }

}

for (int i=0; i<=charvalue.Length-1; i++){ Cp[i] = panjangArray[i]%p;

Cq[i] = panjangArray[i]%numArray[1]; BigInteger nilai=1;

for (int b=1; b<=numArray[2]-1; b++){ nilai = nilai*Cp[i];

}

Mp[i] = nilai%numArray[0]; K0[i] = Mp[i]*Cp[i]%numArray[0]; BigInteger nilai1=1;

for (int c=1; c<=numArray[5]; c++) nilai1 = nilai1*K0[i];

A[i] = -1 * nilai1 % p;

A[i] = A[i] + panjangArray[i]%p; Mp[i] = Mp[i]*A[i]%p;

Mp[i] = Mp[i]*einvers%p; Mp[i] = Mp[i] + K0[i]%p; BigInteger nilai2=1;

for (int d=1; d<=numArray[3]; d++) nilai2 = nilai2*Cq[i];

Mq[i] = nilai2%numArray[1]; V[i] = Mq[i] - Mp[i] % numArray[1];

V[i] = V[i] *p2invers%numArray[1]; kuncisimetris[i] = V[i]*p%numArray[4];

kuncisimetris[i] = kuncisimetris[i] + Mp[i] %numArray[4]; konversi[i] = (int) kuncisimetris[i];

karakter[i] = Convert.ToChar(konversi[i]); }

string karakterlengkap = newstring(karakter);

tb_kuncisimetrisdek.Text = Convert.ToString(karakterlengkap); hitungwaktu.Stop();

string timerdekripsikunci = (int.Parse(hitungwaktu.Elapsed.ToString("fffffff")) / 10000f).ToString();

tb_runningtimedek.Text = double.Parse(timerdekripsikunci).ToString() + " ms"; tb_kunci.Text = Convert.ToString(karakterlengkap);

//tb_kunci.Text = Convert.ToString(konversi[0]); }

//cari file yg mau dienkripsi stringtipe, format;

(11)

OpenFileDialog dialog = newOpenFileDialog();

dialog.Filter = "Word File|*.doc;*.docx| TextFile |*.txt"; dialog.Title = "Open File : ";

dialog.RestoreDirectory = true;

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

tipe = dialog.FileName.Substring(dialog.FileName.Length - 3, 3); format = dialog.FileName.Substring(dialog.FileName.Length - 4, 4);

if (tipe == "doc") {

tb_lokasi.Text = dialog.FileName;

}

elseif (tipe == "txt") {

tb_lokasi.Text = dialog.FileName;

}

elseif (format == "docx") {

tb_lokasi.Text = dialog.FileName; }

}

if (tipe == "doc") {

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

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

object objTrue = true;

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

Microsoft.Office.Interop.Word.Document aDoc = wordApp.Documents.Open(ref filenameO, ref objFalse, ref objTrue, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref objTrue, ref missing, ref missing, ref missing, ref missing);

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

IDataObject data = Clipboard.GetDataObject();

String fileText = data.GetData(DataFormats.Text).ToString(); Clipboard.SetDataObject(string.Empty);

rtb_plaintext.Text = fileText;

int baca = rtb_plaintext.Text.Length; string pjg = baca.ToString();

(12)

}

elseif (format == "docx") {

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

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

object objTrue = true;

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

Microsoft.Office.Interop.Word.Document aDoc = wordApp.Documents.Open(ref filenameO, ref objFalse, ref objTrue, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref objTrue, ref missing, ref missing, ref missing, ref missing);

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

IDataObject data = Clipboard.GetDataObject();

String fileText = data.GetData(DataFormats.Text).ToString(); Clipboard.SetDataObject(string.Empty);

rtb_plaintext.Text = fileText;

int baca = rtb_plaintext.Text.Length; string pjg = baca.ToString();

tb_panjangkarakter.Text = pjg; }

elseif (tipe == "txt") {

string fileText = File.ReadAllText(dialog.FileName); rtb_plaintext.Text = fileText;

int baca = rtb_plaintext.Text.Length; string pjg = baca.ToString();

tb_panjangkarakter.Text = pjg; }

}

//menyimpan ciphertext

voidSimpancipherClick(object sender, EventArgs e) {

SaveFileDialog simpanciphertext = newSaveFileDialog(); simpanciphertext.Filter = "Ciphertext(*.mahadi) |*.mahadi"; simpanciphertext.FileName = ".mahadi";

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

string namafile = simpanciphertext.FileName.Substring(0, simpanciphertext.FileName.Length - 7) + "a.dat";

FileStream fstreamm

(13)

StreamWriter sww = newStreamWriter(fstreamm); SeekOrigin seekoriginn = newSeekOrigin();

sww.BaseStream.Seek(0, seekoriginn); sww.WriteLine(rtb_ciphertext.Text); sww.Flush();

sww.Close(); }

}

//reset pada enkripsi

voidButton10Click(object sender, EventArgs e) {

rtb_plaintext.Text = ""; tb_kuncisimetris.Text = ""; rtb_ciphertext.Text = ""; tb_kuncienkripsi.Text = ""; tb_cipherkey.Text = ""; tb_publickey.Text = ""; tb_lokasi.Text = "";

tb_panjangkarakter.Text = ""; tb_runningteks.Text = ""; tb_runningtimekunci.Text = ""; }

stringtext;

voidButton15Click(object sender, EventArgs e) {

OpenFileDialog bukaciphertext = newOpenFileDialog(); bukaciphertext.Filter = "Ciphertext(*.mahadi)|*.mahadi"; if (bukaciphertext.ShowDialog() == DialogResult.OK) { string nama = bukaciphertext.FileName.Substring(0, bukaciphertext.FileName.Length);

FileStream fstreamm = newFileStream(nama, FileMode.Open, FileAccess.ReadWrite);

StreamReader sreader = newStreamReader(fstreamm); sreader.BaseStream.Seek(0, SeekOrigin.Begin);

text = sreader.ReadToEnd(); sreader.Close();

rtb_cipher.Text = text;

int baca = rtb_cipher.Text.Length; string jumlah = baca.ToString(); tb_panjang.Text = jumlah;

tb_tempat.Text = bukaciphertext.FileName; }

}

(14)

tb_cipherkeydek.Text =""; tb_privatekey.Text =""; tb_kuncisimetrisdek.Text =""; tb_tempat.Text = "";

tb_panjang.Text = ""; tb_rtteks.Text = "";

tb_runningtimedek.Text = ""; rtb_cipher.Text = "";

tb_kunci.Text = ""; rtb_plain.Text = ""; }

voidButton17Click(object sender, EventArgs e) {

SaveFileDialog simpanpesan = newSaveFileDialog(); simpanpesan.Filter = "FileAsli(*.doc) |*.doc"; simpanpesan.FileName = ".doc";

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

string namafile = simpanpesan.FileName.Substring(0, simpanpesan.FileName.Length - 4) + "a.dat";

FileStream fstreamm

= newFileStream(simpanpesan.FileName,FileMode.OpenOrCreate); StreamWriter sww = newStreamWriter(fstreamm);

SeekOrigin seekoriginn = newSeekOrigin(); sww.BaseStream.Seek(0, seekoriginn); sww.WriteLine(rtb_plain.Text); sww.Flush();

sww.Close(); }

}

voidLanjutClick(object sender, EventArgs e) {

}

voidTb_lokasiTextChanged(object sender, EventArgs e) {

}

voidTb_runningteksTextChanged(object sender, EventArgs e) {

}

//---// }

(15)

LAMPIRAN 2

CURRICULUM VITAE

DATA DIRI

Nama Lengkap

: Mahadi Putra

Nama Panggilan

: Mahadi

Tempat/Tanggal Lahir

: Binjai/29 Juni 1995

Jenis Kelamin

: Laki-laki

Agama

: Islam

Kebangsaan

: Indonesia

Alamat

: Jl. Perintis Kemerdekaan XVI No. 2A,

Binjai, Sumatera Utara

Nomor HP

: +6281214672554

E-mail

: [email protected]

RIWAYAT PENDIDIKAN

S1 Ilmu Komputer

Universitas Sumatera Utara, Medan

131401057

Sekolah Menengah Atas

MAN BINJAI

2010-2013

Sekolah Menengah Pertama

MTsN BINJAI

2007-2010

Sekolah Dasar

(16)

No.

Nama Seminar/Kursus/Workshop

Tahun

1

Workshop IT : GIT Repository

2017

2

Global Inspiring Seminar of Indonesia Next Program 2016

2016

3

Seminar Nasional Literasi Indormasi (SENARAI)

2014

4

Seminar What Will You Be

2013

5

Pelatihan Dasar Organisasi IMILKOM

2015

6

Kursus Bahasa Inggris Oxford

2003

7

Bimbingan Belajar Ganesha Operation

2010

Bahasa Pemrograman

: C++, C#, HTML

DMBS

: MySQL

Software

:Office Application, Photoshop

PENGALAMAN ORGANISASI

No Organisasi Posisi Tahun

1 IMILKOM USU Ketua Umum 2016-sekarang

2 IMILKOM USU Anggota Dana dan Usaha 2015-2016

3 Porseni IMILKOM 2015 Koordinator Humas 2015

4 Ilmu Komputer Goes To School

2014 Ketua 2014

5 Paskibra Anggota 2010-2012

6 Pramuka Anggota 2011-2013

7 CISC Binjai Bendahara 2016-sekarang

SEMINAR/KURSUS/WORKSHOP

Referensi

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