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candragati · 03-29-2012, 10:40 AM

Semua orang perlu berkomunikasi. Salah satunya lewat tulisan.
Tapi untuk mengirim pesan yang sifatnya rahasia, orang lalu menciptakan teknik kriptografi supaya gak semua orang bisa membacanya.

Untuk melakukan kriptografis, perlu dibuatkan algoritma nya. Tujuannya supaya yang bacanya bingung, dan kitanya juga bingung
pusing

kalo sama-sama bingung, lah yang mau bacanya siapa ??
angel1

Salah satu kriptografi klasik adalah Vignere chiper.
Kriptografi kayak gini menggunakan kunci untuk mencampur adukkan teks aslinya sehingga hasil outputnya jadi berantakan.

Code:

<!-- sumber : http://jnanayoga-online.blogspot.com/2011/02/program-enkripsi-vigenere-cipher-dengan.html -->

<html>

   <head>

     <title>Vignere Cipher</title>

     <!--

       CryptoMX Tools

       Copyright (C) 2004 - 2006 Derek Buitenhuis

       This program is free software; you can redistribute it and/or

       modify it under the terms of the GNU General Public License

       as published by the Free Software Foundation; either version 2

       of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful,

       but WITHOUT ANY WARRANTY; without even the implied warranty of

       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

       GNU General Public License for more details.

       You should have received a copy of the GNU General Public License

       along with this program; if not, write to the Free Software

       Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

     -->

   </head>

   <body bgcolor=#FFFFFF text=#000000>

     <td>

       <script>

function Vigenere (input, key, forward){

if (key == null)

key = "";

var alphabet =   "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

+ "abcdefghijklmnopqrstuvwxyz";

// Validate key:

key = key . toUpperCase ();

var key_len = key . length;

var i;

var adjusted_key = "";

for (i = 0; i < key_len; i ++)   {

var key_char = alphabet . indexOf (key . charAt (i));

if (key_char < 0)

continue;

adjusted_key += alphabet . charAt (key_char);

}

key = adjusted_key;

key_len = key . length;

if (key_len == 0)   {

alert ('You forgot to supply a key!');

key = "a";

key_len = 1;

}

// Transform input:

var input_len = input . length;

var output = "";

var key_index = 0;

var in_tag = false;

for (i = 0; i < input_len; i ++)   {

var input_char = input . charAt (i);

if (input_char == "<")

       in_tag = true;

     else if (input_char == ">")

       in_tag = false;

     if (in_tag)     {

       output += input_char;

       continue;

     }

     var input_char_value = alphabet . indexOf (input_char);

     if (input_char_value < 0)     {

       output += input_char;

       continue;

     }

     var lowercase = input_char_value >= 26 ? true : false;

     if (forward)

       input_char_value += alphabet . indexOf (key . charAt (key_index));

     else

       input_char_value -= alphabet . indexOf (key . charAt (key_index));

     input_char_value += 26;

     if (lowercase)

       input_char_value = input_char_value % 26 + 26;

     else

       input_char_value %= 26;

     output += alphabet . charAt (input_char_value);

     key_index = (key_index + 1) % key_len;

   }

   return output;

 }

 function runcoder (dir) {

   document . form . output . value = Vigenere (document . form . input . value, document . form . key . value, dir);

 /*  A bug in IE prevents this section from working correctly.

   with (document . form)   {

     output . value = Vigenere (input . value, key . value, dir);

   }

 */

 }

     </script>

     <form name=form>

       <table border cellspacing="2">

         <tr>

           <td>

             Input:<br>

             <input type=button onClick="this.form.input.value='';" value="clear">

           </td>

           <td>

             <textarea name=input rows=10 cols=60 wrap=virtual></textarea>

           </td>

         </tr>

         <tr>

           <td>

             Key:<br>

             <input type=button onClick="this.form.key.value='';" value="clear">

           </td>

           <td>

             <textarea name=key rows=5 cols=60 wrap=virtual></textarea>

           </td>

         </tr>

         <tr>

           <td>Coding direction:</td>

           <td>

             <input type=button value="encode" onClick="runcoder (true);">

             <input type=button value="decode" onClick="runcoder (false);">

           </td>

         </tr>

           <td>

             Output:<br>

             <input type=button onClick="this.form.output.value='';" value="clear">

           </td>

           <td>

             <textarea name=output rows=10 cols=60 wrap=virtual></textarea>

           </td>

         </table>

       </form>

   </body>

 </html>

Berikut ini beberapa file HTML/Javascript yang berhasil ane rangkum dari berbagai sumber. Diurutkan berdasarkan tingkat kerumitannya. stress

Code:

<!-- sumber : widget opera, Text to Hack Converter-->

<html >

<head>

  <title>Text-To-Hack Converter</title>

  <script>

  function jsRand(min,max){

    if(max){

        return Math.floor(Math.random()*(max-min+1))+min;

    }

    else{

        return Math.floor(Math.random()*(min+1));

    }

}

function convertNormal(){

    out = document.getElementById('inputText').value;

    out = out.replace(/a/gi,'4');

    out = out.replace(/e/gi,'3');

    out = out.replace(/i/gi,'!');

    out = out.replace(/l/gi,'1');

    out = out.replace(/o/gi,'0');

    out = out.replace(/s/gi,'$');

    out = out.replace(/t/gi,'7');

    document.getElementById('outputText').value = out;

}

function convertGoogle(){

    var input = document.getElementById('inputText').value;

    out = '';

    for(i=0,max=input.length;i<max;i++){

        char=input.charAt(i);

        if (jsRand(0,1) == 1){

            char = char.toUpperCase();

        }

        out += char;

    }

    out = out.replace(/a/gi,'4');

    out = out.replace(/b/gi,'8');

    out = out.replace(/c/gi,'(');

    out = out.replace(/e/gi,'3');

    out = out.replace(/i/gi,'|');

    out = out.replace(/l/gi,'1');

    out = out.replace(/o/gi,'0');

    out = out.replace(/s/gi,'z');

    out = out.replace(/t/gi,'+');

    document.getElementById('outputText').value = out;

}

function configOk(){

    if (document.getElementById('mode1').checked){

        document.getElementById('inputText').onkeyup = "convertNormal()";

        convertNormal();

    }

    else{

        document.getElementById('inputText').onkeyup = "convertGoogle()";

        convertGoogle();

    }

   document.getElementById('configView').style.display = "block";

}

  </script>

</head>

<body>

<div id="configView">

  <h1>Change mode:</h1>

  <input type="radio" name="mode" id="mode1" value="1" checked="checked" /><label for="mode1">Normal</label><br />

  <input type="radio" name="mode" id="mode2" value="2" /><label for="mode2">Google H4x0r</label><br />

  <button type="button" onclick="configOk()">OK</button>

</div>

<p>

<div id="mainView">

  <div id="mainEditableContent">

    <textarea name="inputText" id="inputText" onkeyup="convertNormal()"></textarea>

    <p>

    <textarea name="outputText" id="outputText"></textarea>

  </div>

</div>

</body>

</html>

Code:

<!-- sumber : http://www.revfad.com/flip.html -->

<html>

    <head>

    <!-- Help IE with utf8; thank you, Glards! -->

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

    <meta name="description" content="Turn text upside down. Rotate letters 180 degrees with Unicode.">

    <title>Flip</title>

    <style type="text/css">

        textarea { font-family: "Arial Unicode MS", Batang }

        h1 { margin-bottom: 2px;}

    </style>

    <script>

        function flip() {

            var result = flipString(document.f.original.value.toLowerCase());

            document.f.flipped.value = result;

        }

        function flipString(aString) {

            var last = aString.length - 1;

            //Thanks to Brook Monroe for the suggestion to use Array.join

            var result = new Array(aString.length)

            for (var i = last; i >= 0; --i) {

                var c = aString.charAt(i)

                var r = flipTable[c]

                result[last - i] = r ? r : c

            }

            return result.join('')

        }

        var flipTable = {

            a : '\u0250',

            b : 'q',

            c : '\u0254', //open o -- from pne

            d : 'p',

            e : '\u01DD',

            f : '\u025F', //from pne

            g : '\u0183',

            h : '\u0265',

            i : '\u0131', //from pne

            j : '\u027E',

            k : '\u029E',

            //l : '\u0283',

            m : '\u026F',

            n : 'u',

            r : '\u0279',

            t : '\u0287',

            v : '\u028C',

            w : '\u028D',

            y : '\u028E',

            '.' : '\u02D9',

            '[' : ']',

            '(' : ')',

            '{' : '}',

            '?' : '\u00BF', //from pne

            '!' : '\u00A1',

            "\'" : ',',

            '<' : '>',

            '_' : '\u203E',

            '\u203F' : '\u2040',

            '\u2045' : '\u2046',

            '\u2234' : '\u2235',

            '\r' : '\n' //thank you, Yeeliberto

        }

        for (i in flipTable) {

            flipTable[flipTable[i]] = i

        }

    </script>

    </head>

    <body>

        <h1>Flip</h1>

        <form name="f">Original:

            <br>

            <textarea rows="5" cols="50" name="original" onkeyup="flip()"></textarea> <input value="Flip" onclick="flip()" type="button">

            <br>

            Flipped:

            <br>

            <textarea rows="5" cols="50" name="flipped"></textarea>

        </form>

    </body>

</html>

Code:

<!-- sumber : http://alaygenerator.co.cc -->

<HTML>

    <HEAD>

        <TITLE>ALAY!!! Text Generator</TITLE> 

    <script>

    <!--

    function HumanToABG(form){

        var abgteks="";

        var stemp;

        var i,j;

        var acak;

        var aseli=form.aseli.value;

        var TabelHuruf="AEGIOSZ";

        var TabelAngka="4361052"; //01234567890

        var TabelVokal="AIUEO";

        if(aseli.length){

            //modifikasi huruf besar kecil kecil

            if(form.pilihan[0].checked==true){

                for(i=0;i<aseli.length;i++){

                    acak = Math.round(2*Math.random())

                    if(acak)

                    abgteks=abgteks+aseli.charAt(i).toLowerCase();

                    else

                    abgteks=abgteks+aseli.charAt(i).toUpperCase();

                }

            }    

            else

            abgteks=aseli;

            //Modifikasi huruf jadi angka

            var terganti=0;

            stemp="";

            if(form.pilihan[1].checked==true){

                for(i=0;i<aseli.length;i++){

                    acak=Math.round(2*Math.random())

                    terganti=0;

                    if(acak){

                        for(j=0;j<TabelHuruf.length;j++){    

                            if(abgteks.charAt(i).toUpperCase()==TabelHuruf.charAt(j)){

                                stemp=stemp+TabelAngka.charAt(j);

                                terganti=1;

                                break;

                            }

                        }

                    }               

                    if(terganti==0) //huruf tidak dapat diganti 

                    stemp=stemp+abgteks.charAt(i);

                }

                abgteks=stemp;

            }    

            //disingkat-singkat biar pendek

            stemp="";

            if(form.pilihan[2].checked==true){

                for(i=0;i<aseli.length;i++){

                    acak=Math.round(2*Math.random())

                    terganti=0;

                    if(acak){

                        for(j=0;j<TabelVokal.length;j++){    

                            if(aseli.charAt(i).toUpperCase()==TabelVokal.charAt(j)){

                                if((aseli.charAt(i-1)!=" ")&&(i>0)){

                                    //stemp=stemp+TabelAngka.charAt(j); hilangkan saja

                                    terganti=1;

                                }

                                break;

                            }

                        }

                    }               

                    if(terganti==0) //huruf tidak dapat diganti 

                    stemp=stemp+abgteks.charAt(i);

                }

                abgteks=stemp;

            }    

            form.abg.value=abgteks;

        }

        else{

            form.abg.value="Ya, anda sudah bukan ABG lagi. Kakek tolong itu diisi dulu form-nya";

        }

    }

    // --> 

    </script>

    </HEAD>

    <BODY BGCOLOR=LIGHTGREEN> 

    <BR>

    <FONT COLOR=RED>

    <H1> The Simple "ALAY" Text Generator </H1>

    <H3>Generator buat bikin tulisan orang-orang alay yang menyebalkan... menjijikkan...</H3>

    </FONT>

    <BR><BR>

    <I>

    <P>Script sederhana ini dapat digunakan untuk membuat Text ALAY yang susah diketik oleh manusia biasa.</P>

    <P>Masukkan teks normal yang ingin dibuat menjadi ALAY Text</P>

    </I>

    <FORM> 

        <TABLE width="700" align="center"> 

            <TBODY>

                <TR> 

                    <TH>Teks Normal</TH> 

                    <TD>&nbsp;&nbsp;</TD> 

                    <TH>Teks ALAY</TH> 

                </TR> 

                <TR> 

                    <TH><TEXTAREA name="aseli" cols="45" rows="10">Masukkan kalimat yang ingin dijadikan Text ALAY disini.</TEXTAREA></TH>        

                    <TD>&nbsp;&nbsp;</TD> 

                    <TH><TEXTAREA name="abg" cols="45" rows="10"></TEXTAREA></TH> 

                </TR> 

                <TR> 

                    <TD><INPUT type="checkbox" name="pilihan"> HuRUf bEsAr keCil

                    </TD><TD>&nbsp;&nbsp;</TD> 

                    <TH>&nbsp;&nbsp;</TH> 

                </TR> 

                <TR> 

                    <TD><INPUT type="checkbox" name="pilihan"> P4k3 4n9k4 D0n9

                    </TD><TD>&nbsp;&nbsp;</TD> 

                    <TH>&nbsp;&nbsp;</TH> 

                </TR> 

                <TR> 

                    <TD><INPUT type="checkbox" name="pilihan"> Disngkt-sngkt biar pndk

                    </TD><TD>&nbsp;&nbsp;</TD> 

                    <TH>&nbsp;&nbsp;</TH> 

                </TR> 

                <TR> 

                    <TD><INPUT type="button" onclick="HumanToABG(this.form)" value="Go ALAY Go!"></TD> 

                    <TD>&nbsp;&nbsp;</TD> 

                    <TD>&nbsp;&nbsp;</TD> 

                </TR> 

            </TBODY>

        </TABLE> 

    </FORM>

    <BR>

    </BODY>

</HTML>

Akhir kata, semoga bermanfaat buat TS. Tapi kalo gak bermanfaat buat situ ya sabodo amat ah seneng

**fuxnbums** · 03-29-2012, 10:43 AM

paling sulit "Alay Generator"

wiih buset ngakak

noe · 03-29-2012, 12:35 PM

keren om'z bingung

nggodress · 03-30-2012, 12:33 AM

tetep aja bingung prustasi

**Core-X** · 03-30-2012, 10:19 AM

bookmark dulu om... peace

"Salah satu kriptografi klasik adalah Vignere chiper.
Kriptografi kayak gini menggunakan kunci untuk mencampur adukkan teks aslinya sehingga hasil outputnya jadi berantakan."
jadi dibuat kyk smacam anagram gitu yah... belajar

candragati · 03-30-2012, 02:28 PM

(03-30-2012 10:19 AM)Core-X Wrote: bookmark dulu om...
"Salah satu kriptografi klasik adalah Vignere chiper.
Kriptografi kayak gini menggunakan kunci untuk mencampur adukkan teks aslinya sehingga hasil outputnya jadi berantakan."
jadi dibuat kyk smacam anagram gitu yah...

jangan tanya guwee.... mewek

sama gak ngertinya mewek

ghosthands · 02-09-2013, 01:21 AM

aduh alay generatornya bikin sakit mata mewek

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