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    script membuat base 64 encode decode online

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    TriLLianT

    Jumlah posting : 33
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    Join date : 13.12.10
    Age : 30
    Lokasi : semarang

    script membuat base 64 encode decode online

    Post  TriLLianT on Tue 08 Mar 2011, 04:40

    Code:
    <html>
    <head>
    <title>«•‡•»
    base64 Encoding/Decoding
    «•‡•» </title>
    </head>
     
    <script type="text/javascript">
    <!--
     
    var keyStr = "ABCDEFGHIJKLMNOP" +
    "QRSTUVWXYZabcdef" +
    "ghijklmnopqrstuv" +
    "wxyz0123456789+/" +
    "=";
     
    function encode64(input) {
    input = escape(input);
    var output = "";
    var chr1, chr2, chr3 = "";
    var enc1, enc2, enc3, enc4 = "";
    var i = 0;
     
    do {
    chr1 = input.charCodeAt(i++);
    chr2 = input.charCodeAt(i++);
    chr3 = input.charCodeAt(i++);
     
    enc1 = chr1 >> 2;
    enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
    enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
    enc4 = chr3 & 63;
     
    if (isNaN(chr2)) {
    enc3 = enc4 = 64;
    } else if (isNaN(chr3)) {
    enc4 = 64;
    }
     
    output = output +
    keyStr.charAt(enc1) +
    keyStr.charAt(enc2) +
    keyStr.charAt(enc3) +
    keyStr.charAt(enc4);
    chr1 = chr2 = chr3 = "";
    enc1 = enc2 = enc3 = enc4 = "";
    } while (i < input.length);
     
    return output;
    }
     
    function decode64(input) {
    var output = "";
    var chr1, chr2, chr3 = "";
    var enc1, enc2, enc3, enc4 = "";
    var i = 0;
     
    // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
    var base64test = /[^A-Za-z0-9\+\/\=]/g;
    if (base64test.exec(input)) {
    alert("There were invalid base64 characters in the input text.\n" +
    "Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" +
    "Expect errors in decoding.");
    }
    input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
     
    do {
    enc1 = keyStr.indexOf(input.charAt(i++));
    enc2 = keyStr.indexOf(input.charAt(i++));
    enc3 = keyStr.indexOf(input.charAt(i++));
    enc4 = keyStr.indexOf(input.charAt(i++));
     
    chr1 = (enc1 << 2) | (enc2 >> 4);
    chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
    chr3 = ((enc3 & 3) << 6) | enc4;
     
    output = output + String.fromCharCode(chr1);
     
    if (enc3 != 64) {
    output = output + String.fromCharCode(chr2);
    }
    if (enc4 != 64) {
    output = output + String.fromCharCode(chr3);
    }
     
    chr1 = chr2 = chr3 = "";
     
    } while (i < input.length);
     
    return unescape(output);
    }
     
    //--></script>
     
    <body>
    <form name="base64Form">
     
    <b>Masukan Huruf,angka,string yang akan di Encode atau di Decode<br>
     
    <textarea name="theText" cols="40" rows="6"></textarea><br>
     
    <input type="button" name="encode" value="Encode"
    onClick="document.base64Form.theText.value=encode64(document.base64Form.theText.value);">
     
    <input type="button" name="decode" value="Decode"
    onClick="document.base64Form.theText.value=decode64(document.base64Form.theText.value);">
     
    </form>
    </center>
    </body>
    </html>


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