LAMPIRAN A : LISTING PROGRAM
1. splash.java
import android.app.Activity; import android.os.Bundle;
import android.content.Intent; import android.content.pm.ActivityInfo;
import android.view.Window; public class Splash extends Activity {
protected int splash_ = 1000; Override
protected void onCreateBundle savedInstanceState { super.onCreatesavedInstanceState;
this.requestWindowFeatureWindow.FEATURE_NO_TITLE; setContentViewR.layout.activity_splash;
getSupportActionBar.hide; setRequestedOrientationActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
setSplash; }
public void setSplash { new Thread {
public void run { try {
Thread.sleep2000; } catch Exception e {
} Intent i = new IntentSplash.this, MainActivity.class;
Splash.this.finish; startActivityi;
} }.start;
} }
2. BuatPesan.java
import android.app.Activity; import android.content.ContentValues;
import android.content.Intent; import android.database.Cursor;
import android.net.Uri; import android.os.Bundle;
import android.provider.ContactsContract; import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.telephony.SmsManager; import android.text.TextUtils;
import android.util.Log; import android.view.View;
import android.view.View.OnClickListener; import android.widget.Button;
import android.widget.EditText; import android.widget.TextView;
import android.widget.Toast; import java.util.Random;
public class BuatPesan extends Activity { EditText nomorKontak, text, hasilencrypt, kunci_p_enk, kunci_q_enk,
kuncihill_enk, hasilencryptkunci; TextView pubkey, nilaiK;
contact picker private static final int CONTACT_PICKER_RESULT = 1001;
private long waktumulaihill, waktuakhirhill, selisihhill, waktumulairabin; phonecontact
public void doLaunchContactPickerView view { Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
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Intent contactPickerIntent = new IntentIntent.ACTION_PICK, uri; startActivityForResultcontactPickerIntent, CONTACT_PICKER_RESULT;
} protected void onActivityResultint requestCode, int resultCode, Intent data
{ String phone = ;
Cursor contacts = null; try {
if resultCode == RESULT_OK { switch requestCode {
case CONTACT_PICKER_RESULT: gets the uri of selected contact
Uri result = data.getData; get the contact id from the Uri last part is contact
id String id = result.getLastPathSegment;
queries the contacts DB for phone no contacts = getContentResolver.query
ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
ContactsContract.CommonDataKinds.Phone._ID + =?, new String[]{id}, null;
gets index of phone no int phoneIdx = contacts.getColumnIndexPhone.DATA;
if contacts.moveToFirst { gets the phone no
phone = contacts.getStringphoneIdx; EditText phoneTxt = EditText
findViewByIdR.id.nomorHp; assigns phone no to EditText field phone number
phoneTxt.setTextphone; } else {
Toast.makeTextthis, error, Toast.LENGTH_LONG.show;
} break;
} } else {
gracefully handle failure Toast.makeTextBuatPesan.this, R.string.belumdipilih,
Toast.LENGTH_SHORT.show; }
} catch Exception e { Toast.makeTextthis, e.getMessage, Toast.LENGTH_LONG.show;
} finally { if contacts = null {
contacts.close; }
} }
public String toBinarylong n { if n == 0 {
return 0; }
String binary = ; while n 0 {
long rem = n 2; binary = rem + binary;
n = n 2; }
return binary; }
public long toDecimallong binary { long decimal = 0;
long power = 0; while true {
if binary == 0 { break;
} else {
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long temp = binary 10; decimal += temp Math.pow2, power;
binary = binary 10; power++;
} }
return decimal; }
public boolean fermatint p { boolean hasil = true;
Random rand = new Random; int a = rand.nextInt20 + 1;
if a p == 0 { hasil = false;
} else if modExpa, p - 1, p = 1 { hasil = false;
} return hasil;
} public static int modExpint a, int b, int n {
if b == 0 return 1; long t = modExpa, b 2, n;
long c = t t n; if b 2 == 1
c = c a n; return int c;
} Override
public void onCreatefinal Bundle savedInstanceState { super.onCreatesavedInstanceState;
this.setTitleEncrypt Message; setContentViewR.layout.buatpesan;
final Button send = Button findViewByIdR.id.send; final Button encrypt = Button findViewByIdR.id.encrypt;
final Button encryptkunci = Button findViewByIdR.id.encryptkunci; text = EditText findViewByIdR.id.smsBox;
nomorKontak = EditText findViewByIdR.id.nomorHp; hasilencrypt = EditText findViewByIdR.id.hasilEncrypt;
hasilencryptkunci = EditText findViewByIdR.id.hasilEncryptkunci; kunci_p_enk = EditText findViewByIdR.id.kunci_p_enk;
kunci_q_enk = EditText findViewByIdR.id.kunci_q_enk; kuncihill_enk = EditText findViewByIdR.id.KunciHill_enk;
pubkey = TextView findViewByIdR.id.pubkey; nilaiK = TextView findViewByIdR.id.Kvalues;
Intent i = getIntent; if i.getStringExtramessage = null {
text.setTexti.getStringExtramessage; }
encryptkunci.setOnClickListenernew OnClickListener { Override
public void onClickView arg0 { TODO Auto-generated method stub
waktumulairabin = System.currentTimeMillis; String enkunciaes = ;
String keyx = kuncihill_enk.getText.toString; String p = kunci_p_enk.getText.toString;
String q = kunci_q_enk.getText.toString; try {
if TextUtils.isEmptykeyx { kuncihill_enk.setErrorYour key is Empty;
} else if TextUtils.isEmptyp { kunci_p_enk.setErrorPrivate Keys cannot Empty;
} else if TextUtils.isEmptyq { kunci_q_enk.setErrorPrivate Keys cannot Empty;
} else if p.matches[0-9] { kunci_p_enk.setErrorPrivate Keys must be a Number;
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} else if q.matches[0-9] { kunci_q_enk.setErrorPrivate Keys must be a Number;
} else if p.equalsq { kunci_p_enk.setErrorPrivate Keys must be Different;
} else if fermatInteger.parseIntp { kunci_p_enk.setErrorPrivate Key must be a Prime
Number; } else if fermatInteger.parseIntq {
kunci_q_enk.setErrorPrivate Key must be a Prime Number;
} else if Integer.parseIntp 4 = 3 { kunci_p_enk.setErrorPrivate Keys must have modulus 3
when devide by 4; } else if Integer.parseIntq 4 = 3 {
kunci_q_enk.setErrorPrivate Keys must have modulus 3 when devide by 4;
} else { long startTime = System.currentTimeMillis;
int uvw = Integer.parseIntp; int xyz = Integer.parseIntq;
long publickey = uvw xyz; pubkey.setTextpublic key : + publickey;
tabelEnc obj1 = new tabelEnc; for int i = 0; i keyx.length; ++i {
Toast.makeTextgetApplicationContext, ke: +i+ms, Toast.LENGTH_LONG.show;
char b = keyx.charAti; int plain = tabelEnc.getIndexb;
String double_text = toBinaryplain + toBinaryplain;
long double_dectext = Long.parseLongdouble_text; long m = toDecimaldouble_dectext;
long k = m - m publickey publickey; nilaiK.setTextnilaiK.getText + + k;
SimpanKunci.setKkeyString.valueOfk; long c = long Math.powm, 2 publickey;
SimpanKunci.setCipherkeyString.valueOfc; hasilencryptkunci.setTexthasilencryptkunci.getText
+ + c; }
obj2 = new simpanVariabel; long endTime = System.currentTimeMillis;
long duration = endTime - startTime; Toast.makeTextgetApplicationContext, Encryption Time:
+ duration + ms, Toast.LENGTH_LONG.show; }
} catch Exception e1 { Toast.makeTextBuatPesan.this, enkunciaes,
Toast.LENGTH_LONG.show; e1.printStackTrace;
} hasilencryptkunci.setTextenkunciaes;
} };
encrypt.setOnClickListenernew OnClickListener { Override
public void onClickView e { String ambilKata = text.getText.toString;
String kunci_enk_hill = kuncihill_enk.getText.toString; String enKata = ;
try { if kuncihill_enk.getText.toString.equals ||
text.getText.toString.equals { Toast.makeTextBuatPesan.this, Pesan ataupun kunci tidak
boleh kosong, Toast.LENGTH_SHORT.show;
} else { String hasil1=null;
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waktumulaihill = System.currentTimeMillis; hillCipher obj = new hillCipher;
double sq = Math.sqrtkunci_enk_hill.length; System.out.printlnini double + sq + ini long +
long sq + ini int + int sq; if sq = long sq
System.out.printlnpanjang kunci salah; 0+3TLeT9[I.MV5hk1zz mOTRQBU
else { int s = int sq;
if obj.checkkunci_enk_hill, s { System.out.printlnResult:;
obj.divideambilKata, s; pakai kunci ASCII dari 32-126
System.out.printlnini ya guys : + obj.hasilenkripsi;
Log.iKata Asal, ambilKata; enKata = obj.hasilenkripsi;
Log.iKata Hasil, enKata; obj.cofactobj.keymatrix, s;
System.out.printinversi key + obj.invkey; }
} hasilencrypt.setTextenKata;
waktuakhirhill = System.currentTimeMillis; selisihhill = waktuakhirhill - waktumulaihill;
Toast.makeTextBuatPesan.this, lama enkripsi Hill Cipher + Long.toStringselisihhill, Toast.LENGTH_SHORT.show;
} } catch Exception e1 {
e1.printStackTrace; }
} };
send.setOnClickListenernew OnClickListener { public void onClickView v {
String pesan = hasilencrypt.getText.toString; String nomor = nomorKontak.getText.toString;
if pesan.length 0 nomor.length 0 { try {
proses kirim sms SmsManager sms = SmsManager.getDefault;
sms.sendTextMessagenomor, null, pesan, null, null; proses simpan sms yang terkirim
ContentValues values = new ContentValues; values.putaddress, nomor;
values.putbody, pesan; getContentResolver.insert
Uri.parsecontent:smssent, values; Toast.makeTextBuatPesan.this,
Pesan berhasil dikirim, Toast.LENGTH_SHORT .show;
finish; } catch Exception e {
Toast.makeTextBuatPesan.this, Pesan gagal dikirim, Toast.LENGTH_SHORT.show;
e.printStackTrace; }
} else { Toast.makeTextBuatPesan.this,
Nomor atau Isi Pesan Masing Kosong, Toast.LENGTH_SHORT.show;
} }
}; }
}
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3. LihatPesan.java
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